Edit Profile (opens in new tab) Zhao, Yulin Co-Author Distance Author ID: zhao.yulin Published as: Zhao, Yulin; Zhao, Yunlin; Zhao, Y.; Zhao, Yu Lin; Zhao, Yu-Lin; Zhao, Yun Lin; Zhao, Yu-lin more...less Documents Indexed: 132 Publications since 1995, including 3 Additional arXiv Preprints Co-Authors: 73 Co-Authors with 116 Joint Publications 3,166 Co-Co-Authors all top 5 Co-Authors 13 single-authored 18 Chen, Haibo 11 Cen, Xiuli 8 Li, Shimin 8 Liang, Haihua 7 Huang, Jianfeng 7 Zhang, Zhifen 6 Zhang, Qiming 5 Huang, Li 4 Feng, Zhilan 4 Shao, Yi 4 Tian, Yuzhou 4 Wu, Kuilin 3 Dai, Yanfei 3 Gasull, Armengol 3 Li, Jun 3 Li, Yin 3 Llibre, Jaume 3 Luo, Chaoliang 3 Oliveira, Regilene D. S. 3 Qin, Bin 3 Xu, Chengjie 3 Yao, Zhengan 3 Zhu, Siming 2 Chen, Yanyan 2 Cui, Wenzhe 2 Gao, Jing 2 Li, Chengzhi 2 Li, Weigu 2 Liang, Zhaojun 2 Lu, Gang 2 Shi, Xiaoyan 2 Tang, Liang 2 Wang, Donghui 2 Wang, Leiou 2 Wang, Xuebin 2 Wong, Roderick Sue-Chuen 2 Ye, Guobing 2 Yu, Yang 2 Zheng, Yiqiang 2 Zhu, Huaiping 1 Afrouzi, Ghasem Alizadeh 1 Caristi, Giuseppe 1 Chen, Pingge 1 Dai, Wusheng 1 Duan, Xiang-Yang 1 Guo, Lina 1 He, Zecen 1 Heidarkhani, Shapour 1 Hou, Aiyu 1 Jin, Yuye 1 Leung, Andrew Yee-Tak 1 Li, Feng 1 Li, Wen-Du 1 Li, Xian-Fang 1 Liu, Changjian 1 Liu, Peng 1 Liu, Xingguo 1 Moradi, Shahin 1 Sang, Bo 1 Shen, Xian-hua 1 Sun, Zhaohong 1 Velasco-Hernandez, Jorge X. 1 Wang, Fulin 1 Wang, Jinhua 1 Wang, Jiquan 1 Wu, Xiaoming 1 Xiang, Hongjun 1 Yang, Cuihong 1 Yang, Lianjiao 1 Zhang, Fang 1 Zhang, Hong 1 Zhao, Yanlin 1 Zhou, Chi-Chun 1 Zhu, Xianyang all top 5 Serials 11 Journal of Mathematical Analysis and Applications 8 Journal of Differential Equations 6 Applied Mathematics and Computation 6 Advances in Difference Equations 6 Boundary Value Problems 5 Discrete and Continuous Dynamical Systems 4 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 4 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 4 Abstract and Applied Analysis 3 Computers & Mathematics with Applications 3 Mathematics in Practice and Theory 3 Applied Mathematics Letters 3 Bulletin des Sciences Mathématiques 2 Applicable Analysis 2 Mathematical Biosciences 2 Nonlinearity 2 Annali di Matematica Pura ed Applicata. Serie Quarta 2 Journal of Computational and Applied Mathematics 2 Chinese Annals of Mathematics. Series B 2 European Journal of Applied Mathematics 2 Qualitative Theory of Dynamical Systems 2 Nonlinear Analysis. Real World Applications 2 Discrete and Continuous Dynamical Systems. Series B 2 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 2 Communications on Pure and Applied Analysis 2 Algorithms 2 Scientia Sinica. Mathematica 1 International Journal of Modern Physics B 1 Houston Journal of Mathematics 1 International Journal of Mechanical Sciences 1 Israel Journal of Mathematics 1 Journal of the Franklin Institute 1 Journal of Mathematical Biology 1 Physics Letters. A 1 Chaos, Solitons and Fractals 1 International Journal of Mathematics and Mathematical Sciences 1 Studies in Applied Mathematics 1 Acta Scientiarum Naturalium Universitatis Sunyatseni 1 Annals of Differential Equations 1 Journal of Biomathematics 1 Publicacions Matemàtiques 1 Science in China. Series A 1 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 1 Electronic Journal of Differential Equations (EJDE) 1 NoDEA. Nonlinear Differential Equations and Applications 1 Journal of Baoji College of Arts and Science. Natural Science 1 Nonlinear Dynamics 1 Acta Mathematica Scientia. Series A. (Chinese Edition) 1 Electronic Journal of Qualitative Theory of Differential Equations 1 European Journal of Mechanics. A. Solids 1 Acta Mathematica Sinica. English Series 1 Communications in Nonlinear Science and Numerical Simulation 1 Mathematical Theory and Application 1 Journal of Applied Mathematics and Computing 1 Mathematical Biosciences and Engineering 1 Acta Mathematica Sinica. Chinese Series 1 Journal of Physics A: Mathematical and Theoretical 1 Science China. Mathematics 1 Journal of Beihua University. Natural Science 1 Journal of Theoretical Biology all top 5 Fields 112 Ordinary differential equations (34-XX) 25 Dynamical systems and ergodic theory (37-XX) 16 Biology and other natural sciences (92-XX) 8 Operator theory (47-XX) 6 Global analysis, analysis on manifolds (58-XX) 5 Partial differential equations (35-XX) 3 Real functions (26-XX) 3 Numerical analysis (65-XX) 3 Mechanics of deformable solids (74-XX) 2 Algebraic geometry (14-XX) 2 Difference and functional equations (39-XX) 2 Integral equations (45-XX) 2 Probability theory and stochastic processes (60-XX) 2 Computer science (68-XX) 2 Systems theory; control (93-XX) 1 General algebraic systems (08-XX) 1 Differential geometry (53-XX) 1 Manifolds and cell complexes (57-XX) 1 Mechanics of particles and systems (70-XX) 1 Quantum theory (81-XX) 1 Operations research, mathematical programming (90-XX) 1 Information and communication theory, circuits (94-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 99 Publications have been cited 927 times in 623 Documents Cited by ▼ Year ▼ Linear estimate of the number of zeros of Abelian integrals for a kind of quartic Hamiltonians. Zbl 0961.34016 Zhao, Yulin; Zhang, Zhifen 50 1999 Approximate solution of fractional integro-differential equations by Taylor expansion method. Zbl 1228.65133 Huang, Li; Li, Xian-Fang; Zhao, Yulin; Duan, Xiang-Yang 45 2011 Multiple solutions for a coupled system of nonlinear fractional differential equations via variational methods. Zbl 1338.34033 Zhao, Yulin; Chen, Haibo; Qin, Bin 44 2015 Existence results for fractional \(q\)-difference equations with nonlocal \(q\)-integral boundary conditions. Zbl 1380.39011 Zhao, Yulin; Chen, Haibo; Zhang, Qiming 35 2013 The monotonicity of period function for the codimension four quadratic system \(Q_4\). Zbl 1047.34024 Zhao, Yulin 32 2002 Existence of positive solutions for nonlinear fractional functional differential equation. Zbl 1277.34111 Zhao, Yulin; Chen, Haibo; Huang, Li 30 2012 Four limit cycles in a predator-prey system of Leslie type with generalized Holling type III functional response. Zbl 1432.34064 Dai, Yanfei; Zhao, Yulin; Sang, Bo 27 2019 The cyclicity of the period annulus of the quadratic Hamiltonian systems with non-Morsean point. Zbl 0960.37027 Zhao, Yulin; Liang, Zhaojun; Lu, Gang 24 2000 Existence of multiple positive solutions for \(m\)-point boundary value problems in Banach spaces. Zbl 1147.34019 Zhao, Yu-Lin; Chen, Hai-Bo 22 2008 Abelian integrals for quadratic centres having almost all their orbits formed by quartics. Zbl 1038.37016 Li, Weigu; Zhao, Yulin; Li, Chengzhi; Zhang, Zhifen 21 2002 On the monotonicity of the period function of a quadratic system. Zbl 1089.34038 Zhao, Yulin 20 2005 Infinitely many solutions for fractional differential system via variational method. Zbl 1346.34016 Zhao, Yulin; Chen, Haibo; Zhang, Qiming 20 2016 Infinitely many solutions for perturbed impulsive fractional differential systems. Zbl 1367.34007 Heidarkhani, Shapour; Zhao, Yulin; Caristi, Giuseppe; Afrouzi, Ghasem A.; Moradi, Shahin 20 2017 Coupled within-host and between-host dynamics and evolution of virulence. Zbl 1364.92042 Feng, Zhilan; Cen, Xiuli; Zhao, Yulin; Velasco-Hernandez, Jorge X. 18 2015 Bifurcation of critical periods from the rigid quadratic isochronous vector field. Zbl 1160.34035 Gasull, A.; Zhao, Y. 17 2008 Linear estimate on the number of zeros of Abelian integrals for quadratic centers having almost all their orbits formed by cubics. Zbl 1107.34312 Zhao, Yulin; Li, Weigu; Li, Chengzhi; Zhang, Zhifen 17 2002 Nontrivial solutions for impulsive fractional differential equations via Morse theory. Zbl 1411.34026 Zhao, Yulin; Chen, Haibo; Xu, Chengjie 17 2017 Perturbations of the non-generic quadratic Hamiltonian vector fields with hyperbolic segment. Zbl 1001.34024 Zhao, Yulin; Zhu, Siming 16 2001 On the number of limit cycles in quadratic perturbations of quadratic codimension-four centres. Zbl 1236.34039 Zhao, Yulin 15 2011 Multiplicity results for impulsive fractional differential equations with \(p\)-Laplacian via variational methods. Zbl 1483.34020 Zhao, Yulin; Tang, Liang 15 2017 Emerging disease dynamics in a model coupling within-host and between-host systems. Zbl 1303.92113 Cen, Xiuli; Feng, Zhilan; Zhao, Yulin 15 2014 On the number of limit cycles of a perturbed cubic polynomial differential center. Zbl 1304.34061 Li, Shimin; Zhao, Yulin; Li, Jun 15 2013 Abelian integrals for cubic vector fields. Zbl 0958.34026 Zhao, Yulin; Zhang, Zhifen 14 1999 Algebraic limit cycles in polynomial systems of differential equations. Zbl 1135.34025 Llibre, Jaume; Zhao, Yulin 14 2007 Classification of global phase portraits of planar quartic quasi-homogeneous polynomial differential systems. Zbl 1345.34068 Liang, Haihua; Huang, Jianfeng; Zhao, Yulin 14 2014 Existence of periodic waves for a perturbed quintic BBM equation. Zbl 1445.34065 Guo, Lina; Zhao, Yulin 14 2020 Periodic solutions for equation \(\dot x = A(t)x^m + B(t)x^n + C(t)x^l\) with \(A(t)\) and \(B(t)\) changing signs. Zbl 1277.34047 Huang, Jianfeng; Zhao, Yulin 13 2012 Bifurcation of limit cycles by perturbing piecewise smooth integrable non-Hamiltonian systems. Zbl 1354.34070 Li, Shimin; Cen, Xiuli; Zhao, Yulin 13 2017 On the number of limit cycles for a class of discontinuous quadratic differential systems. Zbl 1360.34073 Cen, Xiuli; Li, Shimin; Zhao, Yulin 13 2017 Multiple positive solutions of a singular semipositone integral boundary value problem for fractional \(q\)-derivatives equation. Zbl 1274.34079 Zhao, Yulin; Ye, Guobing; Chen, Haibo 13 2013 The cyclicity and period function of a class of quadratic reversible Lotka-Volterra system of genus one. Zbl 1219.34044 Shao, Yi; Zhao, Yulin 12 2011 Multiplicity of solutions to two-point boundary value problems for second-order impulsive differential equations. Zbl 1165.34329 Zhao, Yulin; Chen, Haibo 12 2008 Bifurcation of an SIS model with nonlinear contact rate. Zbl 1327.34090 Li, Jun; Zhao, Yulin; Zhu, Huaiping 12 2015 Fast and slow dynamics of malaria model with relapse. Zbl 1281.92033 Li, Jun; Zhao, Yulin; Li, Shimin 12 2013 Hopf cyclicity and global dynamics for a predator-prey system of Leslie type with simplified Holling type IV functional response. Zbl 1406.34071 Dai, Yanfei; Zhao, Yulin 12 2018 Limit cycles bifurcated from a class of quadratic reversible center of genus one. Zbl 1250.34033 Liang, Haihua; Zhao, Yulin 11 2012 The period function for quadratic integrable systems with cubic orbits. Zbl 1068.34030 Zhao, Yulin 11 2005 Existence of limit cycles and homoclinic bifurcation in a plant-herbivore model with toxin-determined functional response. Zbl 1316.34053 Zhao, Yulin; Feng, Zhilan; Zheng, Yiqiang; Cen, Xiuli 11 2015 Nontrivial solutions for a class of perturbed fractional differential systems with impulsive effects. Zbl 1342.34040 Zhao, Yulin; Zhao, Yanlin 11 2016 Quadratic perturbations of a class of quadratic reversible systems with one center. Zbl 1198.34050 Liang, Haihua; Zhao, Yulin 10 2010 Structural stability of planar quasihomogeneous vector fields. Zbl 1318.34076 Oliveira, Regilene; Zhao, Yulin 8 2014 Existence results for non-instantaneous impulsive nonlinear fractional differential equation via variational methods. Zbl 1441.34020 Zhao, Yulin; Luo, Chaoliang; Chen, Haibo 7 2020 Bifurcations of limit cycles from cubic Hamiltonian systems with a center and a homoclinic saddle-loop. Zbl 0962.34026 Zhao, Yulin; Zhang, Zhifen 6 2000 Existence of multiple solutions for three-point boundary-value problems on infinite intervals in Banach spaces. Zbl 1244.34023 Zhao, Yulin; Chen, Haibo; Xu, Chengjie 6 2012 On the period function of reversible quadratic centers with their orbits inside quartics. Zbl 1182.34059 Liang, Haihua; Zhao, Yulin 6 2009 Existence and multiplicity of positive solutions for nonhomogeneous boundary value problems with fractional \(q\)-derivatives. Zbl 1296.34048 Zhao, Yulin; Chen, Haibo; Zhang, Qiming 6 2013 Limit cycles of perturbed cubic isochronous center via the second order averaging method. Zbl 1296.34077 Li, Shimin; Zhao, Yulin 6 2014 Limit cycles for planar semi-quasi-homogeneous polynomial vector fields. Zbl 1258.34059 Zhao, Yulin 6 2013 Bifurcation of limit cycles from a non-Hamiltonian quadratic integrable system with homoclinic loop. Zbl 1271.34036 Zhao, Yulin; Zhu, Huaiping 6 2012 Adaptive synchronization of coupled harmonic oscillators under switching topology. Zbl 1406.93039 Xu, Chengjie; Zhao, Yulin; Qin, Bin; Zhang, Hong 6 2019 Abelian integrals and period functions for quasihomogeneous Hamiltonian vector fields. Zbl 1110.34022 Zhao, Yulin; Zhang, Zhifen 5 2005 Stochastic exact solutions of the Wick-type stochastic NLS equation. Zbl 1338.35516 Li, Yin; Zhao, Yulin; Yao, Zheng-an 5 2014 Higher order Melnikov function for a quartic Hamiltonian with cuspidal loop. Zbl 1019.34038 Zhao, Yulin; Zhu, Siming 5 2002 The cyclicity of a class of quadratic reversible system of genus one. Zbl 1279.34047 Shao, Yi; Zhao, Yulin 5 2011 Isochronicity for a class of reversible systems. Zbl 1195.34065 Wu, Kuilin; Zhao, Yulin 4 2010 On the number of zeros of Abelian integrals for a polynomial Hamiltonian irregular at infinity. Zbl 1067.34034 Zhao, Yulin 4 2005 Bifurcation analysis and global dynamics of a mathematical model of antibiotic resistance in hospitals. Zbl 1378.92028 Cen, Xiuli; Feng, Zhilan; Zheng, Yiqiang; Zhao, Yulin 4 2017 Existence results for an impulsive Sturm-Liouville boundary value problems with mixed double parameters. Zbl 1343.34075 Zhao, Yulin; Huang, Li; Zhang, Qiming 4 2015 Quadratic perturbations of a class of quadratic reversible center of genus one. Zbl 1281.34056 Liang, Haihua; Wu, Kuilin; Zhao, Yulin 4 2013 The limit set of trajectory in quasi-homogeneous system in \(\mathbb{R}^3\). Zbl 1286.37020 Huang, Jianfeng; Zhao, Yunlin 3 2012 The existence of multiple positive solutions for singular functional differential equations with sign-changing nonlinearity. Zbl 1195.34097 Zhao, Yulin; Chen, Haibo 3 2010 On the period function of a class of reversible quadratic centers. Zbl 1226.34034 Liang, Hai Hua; Zhao, Yun Lin 3 2011 Triple positive solutions for nonlinear boundary value problems in Banach space. Zbl 1189.34058 Zhao, Yulin; Chen, Haibo 3 2009 Global phase portraits and bifurcation diagrams for Hamiltonian systems of linear plus quartic homogeneous polynomials symmetric with respect to the \(y\)-axis. Zbl 1442.37070 Tian, Yuzhou; Zhao, Yulin 3 2020 On a family of polynomial differential equations having at most three limit cycles. Zbl 1283.34030 Gasull, Armengol; Zhao, Yulin 3 2013 The number of zeros of Abelian integrals for a class of plane quadratic systems with two centres. Zbl 1121.34319 Shao, Yi; Zhao, Yulin 2 2007 A singularly perturbed boundary value problem arising in phase transitions. Zbl 1142.34013 Wong, R.; Zhao, Y. 2 2006 On the number of solutions to Carrier’s problem. Zbl 1194.34032 Wong, R.; Zhao, Y. 2 2008 The projective vector field of a kind of three-dimensional quasi-homogeneous system on \(\mathbb S\). Zbl 1226.34032 Huang, Jianfeng; Zhao, Yunlin 2 2011 Chaotic control and generalized synchronization for a hyperchaotic Lorenz-Stenflo system. Zbl 1291.34105 Li, Yin; Zhao, Yulin; Yao, Zheng-An 2 2013 Perturbations of May-Leonard system. Zbl 1312.34072 Zhao, Yulin; Cen, Xiuli 2 2014 Abelian integrals and limit cycles for a class of cubic polynomial vector fields of Lotka-Volterra type with a rational first integral of degree two. Zbl 1320.37041 Cen, Xiuli; Zhao, Yulin; Liang, Haihua 2 2015 On the limit cycles of planar polynomial system with non-rational first integral via averaging method at any order. Zbl 1338.37035 Li, Shimin; Zhao, Yulin; Sun, Zhaohong 2 2015 New results for perturbed second-order impulsive differential equation on the half-line. Zbl 1432.34036 Zhao, Yulin; Wang, Xuebin; Liu, Xingguo 2 2014 Limit cycles for a class of discontinuous planar quadratic differential system. Zbl 1488.34227 Li, Shimin; Zhao, Yulin; Cen, Xiuli 2 2015 Bifurcation of isolated closed orbits from degenerated singularity in \(\mathbb{R}^{3}\). Zbl 1316.34043 Huang, Jianfeng; Zhao, Yulin 2 2013 Existence of solutions for fractional integro-differential equation with multipoint boundary value problem in Banach spaces. Zbl 1296.47110 Zhao, Yulin; Huang, Li; Wang, Xuebin; Zhu, Xianyang 2 2012 The cyclicity of the period annulus of a class of quadratic reversible system. Zbl 1272.34049 Shao, Yi; Zhao, Yulin 2 2012 The cyclicity of quadratic reversible systems with a center of genus one and non-Morsean point. Zbl 1410.34096 Zhao, Yulin; Chen, Yanyan 2 2014 Positive solutions to boundary value problems of a high-order fractional differential equation in a Banach space. Zbl 1391.34097 Zhao, Yulin; Yang, Lianjiao; Chen, Pingge 2 2013 Multiplicity results for a class of fractional differential equations with impulse. Zbl 1448.34032 Zhao, Yulin; Shi, Xiaoyan; Chen, Haibo 2 2018 Periodic boundary value problems for second-order functional differential equations with impulse. Zbl 1417.34196 Zhao, Yulin; Chen, Haibo; Qin, Bin 2 2014 On the global center of polynomial differential systems of degree \(2k+1\). Zbl 0844.34026 Zhao, Yulin; Liang, Zhaojun; Lu, Gang 1 1996 Perturbations of a kind of degenerate quadratic Hamiltonian system with saddle-loop. Zbl 1009.34028 Zhao, Yulin; Wu, Xiaoming; Zhu, Siming 1 2002 Zeros of Abelian integrals for the reversible codimension four quadratic centers \(Q_3^R\cap Q_4\). Zbl 1055.34064 Zhao, Yulin 1 2003 Perturbations of non-Hamiltonian reversible quadratic systems with cubic orbits. Zbl 1100.34025 Zhao, Yulin 1 2006 Existence results for third-order impulsive neutral differential equations with deviating arguments. Zbl 1343.34046 Ye, Guobing; Zhao, Yulin; Huang, Li 1 2014 Fuzzy variational principle and its applications. Zbl 1027.74043 Yang, L. F.; Li, Q. S.; Leung, A. Y. T.; Zhao, Y. L.; Li, G. Q. 1 2002 Quasi normal sectors and orbits in regular critical directions of planar system. Zbl 1383.34052 Li, Shimin; Zhao, Yulin 1 2017 Nonlinear dynamics of a Z-shaped structure with validated global analytical mode shapes. Zbl 1466.74013 Hu, W. H.; Zhao, Y. L.; Cao, D. X.; Chen, J. E.; Wu, R. Q. 1 2020 Bose-like few-fermion systems. Zbl 1448.81520 Zhao, Yu-Lin; Zhou, Chi-Chun; Li, Wen-Du; Dai, Wu-Sheng 1 2020 Limit cycles in a cubic Kolmogorov system with harvest and two positive equilibrium points. Zbl 1474.92136 Zhang, Qi-Ming; Li, Feng; Zhao, Yulin 1 2014 On the number of zeros of abelian integral for a cubic isochronous center. Zbl 1270.34060 Wu, Kuilin; Zhao, Yunlin 1 2012 On the birth and death of algebraic limit cycles in quadratic differential systems. Zbl 1509.34032 Llibre, Jaume; Oliveira, Regilene; Zhao, Yulin 1 2021 Revisiting limit cycles for 3-monomial differential equations. Zbl 1453.34038 Gao, Jing; Zhao, Yulin 1 2020 New family of abelian integrals satisfying Chebyshev property. Zbl 1464.34056 Cen, Xiuli; Liu, Changjian; Zhao, Yulin 1 2020 Bifurcations of an SIRS epidemic model with a general saturated incidence rate. Zbl 1511.92093 Zhang, Fang; Cui, Wenzhe; Dai, Yanfei; Zhao, Yulin 1 2022 Extended quasi-homogeneous polynomial system in \({\mathbb{R}^{3}}\). Zbl 1356.34037 Huang, Jianfeng; Zhao, Yulin 1 2013 Asymptotic analysis of a stochastic Cucker-Smale model with multiplicative excitation. Zbl 1457.92200 Luo, Chaoliang; Zhao, Yulin; Hou, Aiyu 1 2021 Bifurcations of an SIRS epidemic model with a general saturated incidence rate. Zbl 1511.92093 Zhang, Fang; Cui, Wenzhe; Dai, Yanfei; Zhao, Yulin 1 2022 On the birth and death of algebraic limit cycles in quadratic differential systems. Zbl 1509.34032 Llibre, Jaume; Oliveira, Regilene; Zhao, Yulin 1 2021 Asymptotic analysis of a stochastic Cucker-Smale model with multiplicative excitation. Zbl 1457.92200 Luo, Chaoliang; Zhao, Yulin; Hou, Aiyu 1 2021 Existence of periodic waves for a perturbed quintic BBM equation. Zbl 1445.34065 Guo, Lina; Zhao, Yulin 14 2020 Existence results for non-instantaneous impulsive nonlinear fractional differential equation via variational methods. Zbl 1441.34020 Zhao, Yulin; Luo, Chaoliang; Chen, Haibo 7 2020 Global phase portraits and bifurcation diagrams for Hamiltonian systems of linear plus quartic homogeneous polynomials symmetric with respect to the \(y\)-axis. Zbl 1442.37070 Tian, Yuzhou; Zhao, Yulin 3 2020 Nonlinear dynamics of a Z-shaped structure with validated global analytical mode shapes. Zbl 1466.74013 Hu, W. H.; Zhao, Y. L.; Cao, D. X.; Chen, J. E.; Wu, R. Q. 1 2020 Bose-like few-fermion systems. Zbl 1448.81520 Zhao, Yu-Lin; Zhou, Chi-Chun; Li, Wen-Du; Dai, Wu-Sheng 1 2020 Revisiting limit cycles for 3-monomial differential equations. Zbl 1453.34038 Gao, Jing; Zhao, Yulin 1 2020 New family of abelian integrals satisfying Chebyshev property. Zbl 1464.34056 Cen, Xiuli; Liu, Changjian; Zhao, Yulin 1 2020 Four limit cycles in a predator-prey system of Leslie type with generalized Holling type III functional response. Zbl 1432.34064 Dai, Yanfei; Zhao, Yulin; Sang, Bo 27 2019 Adaptive synchronization of coupled harmonic oscillators under switching topology. Zbl 1406.93039 Xu, Chengjie; Zhao, Yulin; Qin, Bin; Zhang, Hong 6 2019 Hopf cyclicity and global dynamics for a predator-prey system of Leslie type with simplified Holling type IV functional response. Zbl 1406.34071 Dai, Yanfei; Zhao, Yulin 12 2018 Multiplicity results for a class of fractional differential equations with impulse. Zbl 1448.34032 Zhao, Yulin; Shi, Xiaoyan; Chen, Haibo 2 2018 Infinitely many solutions for perturbed impulsive fractional differential systems. Zbl 1367.34007 Heidarkhani, Shapour; Zhao, Yulin; Caristi, Giuseppe; Afrouzi, Ghasem A.; Moradi, Shahin 20 2017 Nontrivial solutions for impulsive fractional differential equations via Morse theory. Zbl 1411.34026 Zhao, Yulin; Chen, Haibo; Xu, Chengjie 17 2017 Multiplicity results for impulsive fractional differential equations with \(p\)-Laplacian via variational methods. Zbl 1483.34020 Zhao, Yulin; Tang, Liang 15 2017 Bifurcation of limit cycles by perturbing piecewise smooth integrable non-Hamiltonian systems. Zbl 1354.34070 Li, Shimin; Cen, Xiuli; Zhao, Yulin 13 2017 On the number of limit cycles for a class of discontinuous quadratic differential systems. Zbl 1360.34073 Cen, Xiuli; Li, Shimin; Zhao, Yulin 13 2017 Bifurcation analysis and global dynamics of a mathematical model of antibiotic resistance in hospitals. Zbl 1378.92028 Cen, Xiuli; Feng, Zhilan; Zheng, Yiqiang; Zhao, Yulin 4 2017 Quasi normal sectors and orbits in regular critical directions of planar system. Zbl 1383.34052 Li, Shimin; Zhao, Yulin 1 2017 Infinitely many solutions for fractional differential system via variational method. Zbl 1346.34016 Zhao, Yulin; Chen, Haibo; Zhang, Qiming 20 2016 Nontrivial solutions for a class of perturbed fractional differential systems with impulsive effects. Zbl 1342.34040 Zhao, Yulin; Zhao, Yanlin 11 2016 Multiple solutions for a coupled system of nonlinear fractional differential equations via variational methods. Zbl 1338.34033 Zhao, Yulin; Chen, Haibo; Qin, Bin 44 2015 Coupled within-host and between-host dynamics and evolution of virulence. Zbl 1364.92042 Feng, Zhilan; Cen, Xiuli; Zhao, Yulin; Velasco-Hernandez, Jorge X. 18 2015 Bifurcation of an SIS model with nonlinear contact rate. Zbl 1327.34090 Li, Jun; Zhao, Yulin; Zhu, Huaiping 12 2015 Existence of limit cycles and homoclinic bifurcation in a plant-herbivore model with toxin-determined functional response. Zbl 1316.34053 Zhao, Yulin; Feng, Zhilan; Zheng, Yiqiang; Cen, Xiuli 11 2015 Existence results for an impulsive Sturm-Liouville boundary value problems with mixed double parameters. Zbl 1343.34075 Zhao, Yulin; Huang, Li; Zhang, Qiming 4 2015 Abelian integrals and limit cycles for a class of cubic polynomial vector fields of Lotka-Volterra type with a rational first integral of degree two. Zbl 1320.37041 Cen, Xiuli; Zhao, Yulin; Liang, Haihua 2 2015 On the limit cycles of planar polynomial system with non-rational first integral via averaging method at any order. Zbl 1338.37035 Li, Shimin; Zhao, Yulin; Sun, Zhaohong 2 2015 Limit cycles for a class of discontinuous planar quadratic differential system. Zbl 1488.34227 Li, Shimin; Zhao, Yulin; Cen, Xiuli 2 2015 Emerging disease dynamics in a model coupling within-host and between-host systems. Zbl 1303.92113 Cen, Xiuli; Feng, Zhilan; Zhao, Yulin 15 2014 Classification of global phase portraits of planar quartic quasi-homogeneous polynomial differential systems. Zbl 1345.34068 Liang, Haihua; Huang, Jianfeng; Zhao, Yulin 14 2014 Structural stability of planar quasihomogeneous vector fields. Zbl 1318.34076 Oliveira, Regilene; Zhao, Yulin 8 2014 Limit cycles of perturbed cubic isochronous center via the second order averaging method. Zbl 1296.34077 Li, Shimin; Zhao, Yulin 6 2014 Stochastic exact solutions of the Wick-type stochastic NLS equation. Zbl 1338.35516 Li, Yin; Zhao, Yulin; Yao, Zheng-an 5 2014 Perturbations of May-Leonard system. Zbl 1312.34072 Zhao, Yulin; Cen, Xiuli 2 2014 New results for perturbed second-order impulsive differential equation on the half-line. Zbl 1432.34036 Zhao, Yulin; Wang, Xuebin; Liu, Xingguo 2 2014 The cyclicity of quadratic reversible systems with a center of genus one and non-Morsean point. Zbl 1410.34096 Zhao, Yulin; Chen, Yanyan 2 2014 Periodic boundary value problems for second-order functional differential equations with impulse. Zbl 1417.34196 Zhao, Yulin; Chen, Haibo; Qin, Bin 2 2014 Existence results for third-order impulsive neutral differential equations with deviating arguments. Zbl 1343.34046 Ye, Guobing; Zhao, Yulin; Huang, Li 1 2014 Limit cycles in a cubic Kolmogorov system with harvest and two positive equilibrium points. Zbl 1474.92136 Zhang, Qi-Ming; Li, Feng; Zhao, Yulin 1 2014 Existence results for fractional \(q\)-difference equations with nonlocal \(q\)-integral boundary conditions. Zbl 1380.39011 Zhao, Yulin; Chen, Haibo; Zhang, Qiming 35 2013 On the number of limit cycles of a perturbed cubic polynomial differential center. Zbl 1304.34061 Li, Shimin; Zhao, Yulin; Li, Jun 15 2013 Multiple positive solutions of a singular semipositone integral boundary value problem for fractional \(q\)-derivatives equation. Zbl 1274.34079 Zhao, Yulin; Ye, Guobing; Chen, Haibo 13 2013 Fast and slow dynamics of malaria model with relapse. Zbl 1281.92033 Li, Jun; Zhao, Yulin; Li, Shimin 12 2013 Existence and multiplicity of positive solutions for nonhomogeneous boundary value problems with fractional \(q\)-derivatives. Zbl 1296.34048 Zhao, Yulin; Chen, Haibo; Zhang, Qiming 6 2013 Limit cycles for planar semi-quasi-homogeneous polynomial vector fields. Zbl 1258.34059 Zhao, Yulin 6 2013 Quadratic perturbations of a class of quadratic reversible center of genus one. Zbl 1281.34056 Liang, Haihua; Wu, Kuilin; Zhao, Yulin 4 2013 On a family of polynomial differential equations having at most three limit cycles. Zbl 1283.34030 Gasull, Armengol; Zhao, Yulin 3 2013 Chaotic control and generalized synchronization for a hyperchaotic Lorenz-Stenflo system. Zbl 1291.34105 Li, Yin; Zhao, Yulin; Yao, Zheng-An 2 2013 Bifurcation of isolated closed orbits from degenerated singularity in \(\mathbb{R}^{3}\). Zbl 1316.34043 Huang, Jianfeng; Zhao, Yulin 2 2013 Positive solutions to boundary value problems of a high-order fractional differential equation in a Banach space. Zbl 1391.34097 Zhao, Yulin; Yang, Lianjiao; Chen, Pingge 2 2013 Extended quasi-homogeneous polynomial system in \({\mathbb{R}^{3}}\). Zbl 1356.34037 Huang, Jianfeng; Zhao, Yulin 1 2013 Existence of positive solutions for nonlinear fractional functional differential equation. Zbl 1277.34111 Zhao, Yulin; Chen, Haibo; Huang, Li 30 2012 Periodic solutions for equation \(\dot x = A(t)x^m + B(t)x^n + C(t)x^l\) with \(A(t)\) and \(B(t)\) changing signs. Zbl 1277.34047 Huang, Jianfeng; Zhao, Yulin 13 2012 Limit cycles bifurcated from a class of quadratic reversible center of genus one. Zbl 1250.34033 Liang, Haihua; Zhao, Yulin 11 2012 Existence of multiple solutions for three-point boundary-value problems on infinite intervals in Banach spaces. Zbl 1244.34023 Zhao, Yulin; Chen, Haibo; Xu, Chengjie 6 2012 Bifurcation of limit cycles from a non-Hamiltonian quadratic integrable system with homoclinic loop. Zbl 1271.34036 Zhao, Yulin; Zhu, Huaiping 6 2012 The limit set of trajectory in quasi-homogeneous system in \(\mathbb{R}^3\). Zbl 1286.37020 Huang, Jianfeng; Zhao, Yunlin 3 2012 Existence of solutions for fractional integro-differential equation with multipoint boundary value problem in Banach spaces. Zbl 1296.47110 Zhao, Yulin; Huang, Li; Wang, Xuebin; Zhu, Xianyang 2 2012 The cyclicity of the period annulus of a class of quadratic reversible system. Zbl 1272.34049 Shao, Yi; Zhao, Yulin 2 2012 On the number of zeros of abelian integral for a cubic isochronous center. Zbl 1270.34060 Wu, Kuilin; Zhao, Yunlin 1 2012 Approximate solution of fractional integro-differential equations by Taylor expansion method. Zbl 1228.65133 Huang, Li; Li, Xian-Fang; Zhao, Yulin; Duan, Xiang-Yang 45 2011 On the number of limit cycles in quadratic perturbations of quadratic codimension-four centres. Zbl 1236.34039 Zhao, Yulin 15 2011 The cyclicity and period function of a class of quadratic reversible Lotka-Volterra system of genus one. Zbl 1219.34044 Shao, Yi; Zhao, Yulin 12 2011 The cyclicity of a class of quadratic reversible system of genus one. Zbl 1279.34047 Shao, Yi; Zhao, Yulin 5 2011 On the period function of a class of reversible quadratic centers. Zbl 1226.34034 Liang, Hai Hua; Zhao, Yun Lin 3 2011 The projective vector field of a kind of three-dimensional quasi-homogeneous system on \(\mathbb S\). Zbl 1226.34032 Huang, Jianfeng; Zhao, Yunlin 2 2011 Quadratic perturbations of a class of quadratic reversible systems with one center. Zbl 1198.34050 Liang, Haihua; Zhao, Yulin 10 2010 Isochronicity for a class of reversible systems. Zbl 1195.34065 Wu, Kuilin; Zhao, Yulin 4 2010 The existence of multiple positive solutions for singular functional differential equations with sign-changing nonlinearity. Zbl 1195.34097 Zhao, Yulin; Chen, Haibo 3 2010 On the period function of reversible quadratic centers with their orbits inside quartics. Zbl 1182.34059 Liang, Haihua; Zhao, Yulin 6 2009 Triple positive solutions for nonlinear boundary value problems in Banach space. Zbl 1189.34058 Zhao, Yulin; Chen, Haibo 3 2009 Existence of multiple positive solutions for \(m\)-point boundary value problems in Banach spaces. Zbl 1147.34019 Zhao, Yu-Lin; Chen, Hai-Bo 22 2008 Bifurcation of critical periods from the rigid quadratic isochronous vector field. Zbl 1160.34035 Gasull, A.; Zhao, Y. 17 2008 Multiplicity of solutions to two-point boundary value problems for second-order impulsive differential equations. Zbl 1165.34329 Zhao, Yulin; Chen, Haibo 12 2008 On the number of solutions to Carrier’s problem. Zbl 1194.34032 Wong, R.; Zhao, Y. 2 2008 Algebraic limit cycles in polynomial systems of differential equations. Zbl 1135.34025 Llibre, Jaume; Zhao, Yulin 14 2007 The number of zeros of Abelian integrals for a class of plane quadratic systems with two centres. Zbl 1121.34319 Shao, Yi; Zhao, Yulin 2 2007 A singularly perturbed boundary value problem arising in phase transitions. Zbl 1142.34013 Wong, R.; Zhao, Y. 2 2006 Perturbations of non-Hamiltonian reversible quadratic systems with cubic orbits. Zbl 1100.34025 Zhao, Yulin 1 2006 On the monotonicity of the period function of a quadratic system. Zbl 1089.34038 Zhao, Yulin 20 2005 The period function for quadratic integrable systems with cubic orbits. Zbl 1068.34030 Zhao, Yulin 11 2005 Abelian integrals and period functions for quasihomogeneous Hamiltonian vector fields. Zbl 1110.34022 Zhao, Yulin; Zhang, Zhifen 5 2005 On the number of zeros of Abelian integrals for a polynomial Hamiltonian irregular at infinity. Zbl 1067.34034 Zhao, Yulin 4 2005 Zeros of Abelian integrals for the reversible codimension four quadratic centers \(Q_3^R\cap Q_4\). Zbl 1055.34064 Zhao, Yulin 1 2003 The monotonicity of period function for the codimension four quadratic system \(Q_4\). Zbl 1047.34024 Zhao, Yulin 32 2002 Abelian integrals for quadratic centres having almost all their orbits formed by quartics. Zbl 1038.37016 Li, Weigu; Zhao, Yulin; Li, Chengzhi; Zhang, Zhifen 21 2002 Linear estimate on the number of zeros of Abelian integrals for quadratic centers having almost all their orbits formed by cubics. Zbl 1107.34312 Zhao, Yulin; Li, Weigu; Li, Chengzhi; Zhang, Zhifen 17 2002 Higher order Melnikov function for a quartic Hamiltonian with cuspidal loop. Zbl 1019.34038 Zhao, Yulin; Zhu, Siming 5 2002 Perturbations of a kind of degenerate quadratic Hamiltonian system with saddle-loop. Zbl 1009.34028 Zhao, Yulin; Wu, Xiaoming; Zhu, Siming 1 2002 Fuzzy variational principle and its applications. Zbl 1027.74043 Yang, L. F.; Li, Q. S.; Leung, A. Y. T.; Zhao, Y. L.; Li, G. Q. 1 2002 Perturbations of the non-generic quadratic Hamiltonian vector fields with hyperbolic segment. Zbl 1001.34024 Zhao, Yulin; Zhu, Siming 16 2001 The cyclicity of the period annulus of the quadratic Hamiltonian systems with non-Morsean point. Zbl 0960.37027 Zhao, Yulin; Liang, Zhaojun; Lu, Gang 24 2000 Bifurcations of limit cycles from cubic Hamiltonian systems with a center and a homoclinic saddle-loop. Zbl 0962.34026 Zhao, Yulin; Zhang, Zhifen 6 2000 Linear estimate of the number of zeros of Abelian integrals for a kind of quartic Hamiltonians. Zbl 0961.34016 Zhao, Yulin; Zhang, Zhifen 50 1999 Abelian integrals for cubic vector fields. Zbl 0958.34026 Zhao, Yulin; Zhang, Zhifen 14 1999 On the global center of polynomial differential systems of degree \(2k+1\). Zbl 0844.34026 Zhao, Yulin; Liang, Zhaojun; Lu, Gang 1 1996 all cited Publications top 5 cited Publications all top 5 Cited by 803 Authors 55 Zhao, Yulin 28 Han, Maoan 18 Llibre, Jaume 17 Liang, Haihua 17 Liu, Changjian 15 Villadelprat, Jordi 14 Huang, Jianfeng 14 Yang, Jihua 13 Chen, Haibo 12 Zhao, Liqin 11 Li, Shimin 11 Teng, Zhi-dong 10 Samei, Mohammad Esmael 10 Xiong, Yanqin 9 Zhang, Xiang 8 Cen, Xiuli 8 Gasull, Armengol 8 Huang, Jicai 8 Li, Chengzhi 8 Peng, Linping 8 Wu, Kuilin 7 Boulaaras, Salah Mahmoud 7 Chen, Aiyong 7 Guefaifia, Rafik 7 Heidarkhani, Shapour 7 Rezapour, Shahram 7 Yang, Wengui 6 Arqub, Omar Abu 6 Bravo, José Luis 6 Feng, Meiqiang 6 Huang, Wentao 6 Li, Peiluan 6 Li, Zhong 6 Qiao, Yuanhua 6 Sun, Shurong 6 Wu, Yonghong 6 Xiao, Dongmei 5 Caristi, Giuseppe 5 Chen, Fengde 5 Feng, Zhaosheng 5 Fernandez García-Hierro, Manuel 5 Han, Zhenlai 5 Kamache, Fares 5 Li, Cuiping 5 Liu, Lishan 5 Lu, Min 5 Mañosas, Francesc 5 Moradi, Shahin 5 Salari, Amjad 5 Shang, Zuchong 5 Sui, Shiyou 5 Tang, Yilei 5 Wang, Hui 5 Zang, Hong 5 Zhang, Qiming 5 Zhang, Tonghua 4 Afrouzi, Ghasem Alizadeh 4 Alzabut, Jehad O. 4 Chai, Guoqing 4 Chen, Fangqi 4 Cherif, Bahri Belkacem 4 Etemad, Sina 4 Ge, Weigao 4 Giné, Jaume 4 Marín Pérez, David 4 Romanovskiĭ, Valeriĭ Georgievich 4 Shao, Yi 4 Sun, Xianbo 4 Valls Anglés, Cláudia 4 Wang, Jihua 4 Xia, Yonghui 4 Xiang, Chuang 4 Xiao, Yanni 4 Yang, Junmin 4 Yu, Jiang 4 Zhai, Chengbo 3 Agarwal, Ravi P. 3 Al-Smadi, Mohammed H. 3 Alvarez, María Jesus 3 An, Yukun 3 Asheghi, Rasoul 3 Boukoucha, Rachid 3 Cai, Meilan 3 Dai, Yanfei 3 Din, Qamar 3 Du, Zengji 3 Gavrilov, Lubomir 3 He, Mengxin 3 Huang, Li 3 Huo, Hai-Feng 3 Jin, Yuye 3 Kang, Shugui 3 Li, Baoyi 3 Li, Jibin 3 Li, Jun 3 Li, Yanan 3 Li, Zheqing 3 Lian, Hairong 3 Liu, Jian 3 Lu, Hongling ...and 703 more Authors all top 5 Cited in 139 Serials 52 Journal of Differential Equations 49 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering 48 Advances in Difference Equations 31 Journal of Mathematical Analysis and Applications 30 Qualitative Theory of Dynamical Systems 29 Boundary Value Problems 22 Applied Mathematics and Computation 16 Chaos, Solitons and Fractals 15 Abstract and Applied Analysis 13 Nonlinear Analysis. Real World Applications 11 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 9 Nonlinear Dynamics 9 Journal of Function Spaces 8 Applied Mathematics Letters 8 Discrete and Continuous Dynamical Systems 8 Discrete and Continuous Dynamical Systems. Series B 8 AIMS Mathematics 7 Journal of Computational and Applied Mathematics 7 Bulletin des Sciences Mathématiques 7 Communications in Nonlinear Science and Numerical Simulation 7 Journal of Applied Mathematics and Computing 7 Mathematical Biosciences and Engineering 7 Journal of Biological Dynamics 6 Computers & Mathematics with Applications 6 Discrete and Continuous Dynamical Systems. Series S 6 Journal of Applied Analysis and Computation 5 Mathematical Problems in Engineering 5 Discrete Dynamics in Nature and Society 4 Journal of Mathematical Biology 4 Mathematical Methods in the Applied Sciences 4 Mathematics and Computers in Simulation 4 Journal of Dynamics and Differential Equations 4 Fractals 4 Filomat 4 Journal of Inequalities and Applications 3 Proceedings of the American Mathematical Society 3 Physica D 3 Acta Mathematicae Applicatae Sinica. English Series 3 NoDEA. Nonlinear Differential Equations and Applications 3 Acta Mathematica Sinica. English Series 3 International Journal of Nonlinear Sciences and Numerical Simulation 3 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 3 Communications on Pure and Applied Analysis 3 Mediterranean Journal of Mathematics 3 International Journal of Biomathematics 3 Journal of Nonlinear Science and Applications 3 Advances in Mathematical Physics 3 Science China. Mathematics 2 Applicable Analysis 2 Mathematical Biosciences 2 Bulletin of Mathematical Biology 2 Quaestiones Mathematicae 2 Results in Mathematics 2 Studies in Applied Mathematics 2 Transactions of the American Mathematical Society 2 Chinese Annals of Mathematics. Series B 2 Applied Numerical Mathematics 2 Science in China. Series A 2 Applied Mathematical Modelling 2 International Journal of Computer Mathematics 2 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 2 Journal of Nonlinear Science 2 Computational and Applied Mathematics 2 Journal of Difference Equations and Applications 2 Fractional Calculus & Applied Analysis 2 Journal of Nonlinear Mathematical Physics 2 Kragujevac Journal of Mathematics 2 Journal of Applied Mathematics 2 Analysis and Applications (Singapore) 2 Boletim da Sociedade Paranaense de Matemática. Terceira Série 2 Asian-European Journal of Mathematics 2 Tbilisi Mathematical Journal 2 Communications in Theoretical Physics 2 Fractional Differential Calculus 2 Computational Methods for Differential Equations 2 Electronic Research Archive 1 Israel Journal of Mathematics 1 Journal of the Franklin Institute 1 Mathematical Proceedings of the Cambridge Philosophical Society 1 Metrika 1 Nonlinearity 1 Physica A 1 Wave Motion 1 Journal of Geometry and Physics 1 Annali di Matematica Pura ed Applicata. Serie Quarta 1 Demonstratio Mathematica 1 International Journal of Mathematics and Mathematical Sciences 1 Mathematische Nachrichten 1 Mathematica Slovaca 1 Numerical Functional Analysis and Optimization 1 Rendiconti del Circolo Matemàtico di Palermo. Serie II 1 Transactions of the Moscow Mathematical Society 1 Bulletin of the Korean Mathematical Society 1 Bulletin of the Iranian Mathematical Society 1 Annales de l’Institut Henri Poincaré. Analyse Non Linéaire 1 Journal of Symbolic Computation 1 Journal of Complexity 1 Journal of Scientific Computing 1 Journal of Integral Equations and Applications 1 Automation and Remote Control ...and 39 more Serials all top 5 Cited in 30 Fields 518 Ordinary differential equations (34-XX) 119 Dynamical systems and ergodic theory (37-XX) 94 Biology and other natural sciences (92-XX) 64 Real functions (26-XX) 50 Partial differential equations (35-XX) 47 Operator theory (47-XX) 43 Integral equations (45-XX) 41 Difference and functional equations (39-XX) 40 Numerical analysis (65-XX) 31 Global analysis, analysis on manifolds (58-XX) 12 Systems theory; control (93-XX) 10 Special functions (33-XX) 6 Approximations and expansions (41-XX) 6 Probability theory and stochastic processes (60-XX) 4 Algebraic geometry (14-XX) 3 Combinatorics (05-XX) 3 Calculus of variations and optimal control; optimization (49-XX) 3 Statistics (62-XX) 3 Mechanics of particles and systems (70-XX) 2 Mechanics of deformable solids (74-XX) 2 Fluid mechanics (76-XX) 2 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Number theory (11-XX) 1 Field theory and polynomials (12-XX) 1 Linear and multilinear algebra; matrix theory (15-XX) 1 Harmonic analysis on Euclidean spaces (42-XX) 1 Functional analysis (46-XX) 1 General topology (54-XX) 1 Computer science (68-XX) 1 Statistical mechanics, structure of matter (82-XX) Citations by Year