Edit Profile (opens in new tab) Papageorgiou, Nikolaos S. Compute Distance To: Compute Author ID: papageorgiou.nikolaos-s Published as: Papageorgiou, Nikolaos S.; Papageorgiou, N. S.; Papageorgiou, Nikolas S.; Papageorgiou, Nikolaos; Papageorgiou, Nicolaos S.; Papageorgiou, Nikolaus S.; Papageorgiou, N.; Papageorgiou, Nikolaos Socrates; Papageorgiou, Nikalaos S.; Papageorgiou, Nikolaos s.; Papageorgiou, Nilolaos S.; Papageorgiou, Nokolaos S.; Papageorgiou, Nicolas S.; Papageorgiu, Nikolaos S.; Papageorgiou, Nikolas S; Papageorgiu, Nikolas S. Further Spellings: Παπαγεωργίου, Νικόλαος Σ. Homepage: http://www.math.ntua.gr/~npapg/ External Links: MGP · ORCID · ResearchGate · dblp Documents Indexed: 1,009 Publications since 1982, including 14 Books Co-Authors: 95 Co-Authors with 781 Joint Publications 2,165 Co-Co-Authors all top 5 Co-Authors 227 single-authored 120 Gasiński, Leszek 96 Rădulescu, Vicenţiu D. 55 Staicu, Vasile 48 Aizicovici, Sergiu 48 Filippakis, Michael E. 48 Hu, Shouchuan 46 Repovš, Dušan D. 41 Vetro, Calogero 36 Kyritsi, Sophia Th. 35 Vetro, Francesca 28 Avgerinos, Evgenios P. 25 O’Regan, Donal 25 Papalini, Francesca 24 Motreanu, Dumitru 23 Kourogenis, Nikolaos C. 18 Marano, Salvatore Angelo 18 Winkert, Patrick 17 Motreanu, Viorica Venera 17 Yannakakis, Nikolaos 16 Kandilakis, Dimitrios A. 15 Smyrlis, George 14 Kravvaritis, Dimitrios C. 12 Halidias, Nikolaos 11 Barletta, Giuseppina 11 Cardinali, Tiziana 11 Liu, Zhenhai 10 Matzakos, Nikolaos M. 9 Agarwal, Ravi P. 9 Papageorgiou, Evgenia H. 9 Rocha, Eugénio A. M. 9 Zhang, Youpei 8 Denkowski, Zdzislaw 8 Fiacca, Antonella 8 Scapellato, Andrea 7 Flytzanis, Elias G. 7 Kristály, Alexandru 7 Lakshmikantham, Vangipuram 7 Mugnai, Dimitri 7 Shahzad, Naseer 6 Andrade Santos, Sandrina Rafaela 6 D’Aguì, Giuseppina 6 Livrea, Roberto 5 Candito, Pasquale 5 Iannizzotto, Antonio 5 Pantelides, George 5 Zhang, Chao 4 Averna, Diego 4 Bader, Ralf 4 Bai, Yunru 4 Fragnelli, Genni 4 Tornatore, Elisabetta 3 Leonardi, Salvatore 3 Migórski, Stanisław 3 Zeng, Shengda 2 Bonanno, Gabriele 2 Jebelean, Petru 2 Khan, Mohammed Ali 2 Klimczak, Liliana 2 Krech, Ireneusz 2 Mosconi, Sunra J. N. 2 Papageorgiou, Apostolos S. 2 Qin, Dongdong 2 Servadei, Raffaella 2 Vercillo, Susanna 1 Arseni-Benou, Kate 1 Byszewski, Ludwik 1 Chen, Jianqing 1 Dai, Guowei 1 Ding, Yimin 1 Douka, Panagiota 1 El Manouni, Said 1 Guarnotta, Umberto 1 Hou, Chunjuan 1 Kravvaritis, Dimitrie 1 Kravvaritis, Dimitros 1 Kyritsi-Yiallourou, Sophia Th. 1 Lazăr, Ioana-Claudia 1 Liu, Wulong 1 Marino, Greta 1 Marras, Monica 1 Matzakos, Nikolas 1 Matzakos, Nokolaos 1 Mimikos-Stamatopoulos, Nikiforos 1 Onete, Florin-Iulian 1 Papadrianos, John 1 Patrone, Fioravante 1 Petiurenko, Anna 1 Renzacci, Francesca 1 Roberto, Lucchetti E. 1 Rubbioni, Paola 1 Santos Coelho Rodrigues, Ana Isabel 1 Tang, Xianhua 1 Varga, Csaba György 1 Vasundhara Devi, Jonnalagadda 1 Winowski, Krzysztof all top 5 Serials 47 Journal of Mathematical Analysis and Applications 41 Nonlinear Analysis. Theory, Methods & Applications. Series A: Theory and Methods 26 Communications on Pure and Applied Analysis 24 Topological Methods in Nonlinear Analysis 20 Journal of Differential Equations 20 Proceedings of the American Mathematical Society 20 Advanced Nonlinear Studies 18 Commentationes Mathematicae Universitatis Carolinae 15 Applicable Analysis 15 Archivum Mathematicum 14 Czechoslovak Mathematical Journal 14 Mathematica Japonica 13 Mathematische Nachrichten 13 Monatshefte für Mathematik 13 Positivity 12 Indian Journal of Pure & Applied Mathematics 12 Applied Mathematics and Optimization 12 Funkcialaj Ekvacioj. Serio Internacia 12 Journal of Nonlinear and Convex Analysis 11 Proceedings of the Edinburgh Mathematical Society. Series II 11 Applied Mathematics Letters 11 Electronic Journal of Differential Equations (EJDE) 11 Discrete and Continuous Dynamical Systems 10 Bulletin of the Australian Mathematical Society 10 International Journal of Systems Science 10 Journal of Optimization Theory and Applications 10 Transactions of the American Mathematical Society 10 Zeitschrift für Analysis und ihre Anwendungen 10 Proceedings of the Indian Academy of Sciences. Mathematical Sciences 9 Annali di Matematica Pura ed Applicata. Serie Quarta 9 Yokohama Mathematical Journal 9 Advances in Nonlinear Analysis 8 Applied Mathematics and Computation 8 Publicationes Mathematicae 8 Differential and Integral Equations 8 Dynamic Systems and Applications 8 Electronic Journal of Qualitative Theory of Differential Equations 7 Houston Journal of Mathematics 7 International Journal of Mathematics and Mathematical Sciences 7 Results in Mathematics 7 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 7 Discrete and Continuous Dynamical Systems. Series S 7 Nonlinear Analysis. Theory, Methods & Applications 6 Periodica Mathematica Hungarica 6 ZAMP. Zeitschrift für angewandte Mathematik und Physik 6 Canadian Mathematical Bulletin 6 Commentarii Mathematici Universitatis Sancti Pauli 6 Kodai Mathematical Journal 6 Tamkang Journal of Mathematics 6 Stochastic Analysis and Applications 6 Forum Mathematicum 6 Atti del Seminario Matematico e Fisico dell’Università di Modena 6 Bulletin Mathématique de la Société des Sciences Mathématiques de Roumanie. Nouvelle Série 6 Calculus of Variations and Partial Differential Equations 6 NoDEA. Nonlinear Differential Equations and Applications 6 Pure and Applied Functional Analysis 5 Annales Universitatis Scientiarum Budapestinensis de Rolando Eötvös Nominatae. Sectio Mathematica 5 Publications de l’Institut Mathématique. Nouvelle Série 5 Rendiconti del Circolo Matemàtico di Palermo. Serie II 5 Tohoku Mathematical Journal. Second Series 5 Radovi Matematički 5 Asymptotic Analysis 5 Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Serie IX. Rendiconti Lincei. Matematica e Applicazioni 5 Japan Journal of Industrial and Applied Mathematics 5 Journal of Global Optimization 5 PU.M.A. Pure Mathematics and Applications 5 Bulletin of the Belgian Mathematical Society - Simon Stevin 5 Journal of Convex Analysis 5 Abstract and Applied Analysis 5 Communications in Contemporary Mathematics 5 Nonlinear Analysis. Real World Applications 4 Analysis Mathematica 4 Acta Scientiarum Mathematicarum 4 Manuscripta Mathematica 4 Osaka Journal of Mathematics 4 Pacific Journal of Mathematics 4 Acta Applicandae Mathematicae 4 Journal of Applied Mathematics and Stochastic Analysis 4 Glasnik Matematički. Serija III 4 Bulletin des Sciences Mathématiques 4 Annales Academiae Scientiarum Fennicae. Mathematica 4 Acta Mathematica Scientia. Series B. (English Edition) 4 Boundary Value Problems 4 Complex Variables and Elliptic Equations 4 Analysis and Mathematical Physics 4 Libertas Mathematica. New Series 3 Rocky Mountain Journal of Mathematics 3 Annales Polonici Mathematici 3 Colloquium Mathematicum 3 Demonstratio Mathematica 3 Glasgow Mathematical Journal 3 Acta Mathematica Hungarica 3 Journal of the Australian Mathematical Society. Series A 3 Proceedings of the Royal Society of Edinburgh. Section A. Mathematics 3 Bollettino della Unione Matemàtica Italiana. Serie VII. B 3 Set-Valued Analysis 3 Methods and Applications of Analysis 3 Opuscula Mathematica 3 Scientiae Mathematicae 3 Discussiones Mathematicae. Differential Inclusions, Control and Optimization ...and 102 more Serials all top 5 Fields 562 Partial differential equations (35-XX) 272 Ordinary differential equations (34-XX) 193 Calculus of variations and optimal control; optimization (49-XX) 193 Global analysis, analysis on manifolds (58-XX) 103 Operator theory (47-XX) 47 Measure and integration (28-XX) 45 Functional analysis (46-XX) 42 Systems theory; control (93-XX) 39 Probability theory and stochastic processes (60-XX) 28 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 21 Integral equations (45-XX) 13 General topology (54-XX) 8 Operations research, mathematical programming (90-XX) 4 General and overarching topics; collections (00-XX) 4 Approximations and expansions (41-XX) 2 Real functions (26-XX) 2 Mechanics of deformable solids (74-XX) 1 Dynamical systems and ergodic theory (37-XX) 1 Convex and discrete geometry (52-XX) 1 Algebraic topology (55-XX) 1 Numerical analysis (65-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 709 Publications have been cited 6,882 times in 2,547 Documents Cited by ▼ Year ▼ Handbook of multivalued analysis. Volume I: Theory. Zbl 0887.47001Hu, Shouchuan; Papageorgiou, Nikolas S. 605 1997 An introduction to nonlinear analysis. Theory. Zbl 1040.46001Denkowski, Zdzisław; Migórski, Stanisław; Papageorgiou, Nikolas S. 209 2003 Nonlinear analysis – theory and methods. Zbl 1414.46003Papageorgiou, Nikolaos S.; Rǎdulescu, Vicenţiu D.; Repovš, Dušan D. 152 2019 Degree theory for operators of monotone type and nonlinear elliptic equations with inequality constraints. Zbl 1165.47041Aizicovici, Sergiu; Papageorgiou, Nikolaos S.; Staicu, Vasile 123 2008 Convergence theorems for Banach space valued integrable multifunctions. Zbl 0619.28009Papageorgiou, Nikolaos S. 110 1987 Nonlinear analysis. Zbl 1086.47001Gasiński, Leszek; Papageorgiou, Nikolaos S. 109 2006 Nonsmooth critical point theory and nonlinear boundary value problems. Zbl 1058.58005Gasiński, Leszek; Papageorgiou, Nikolaos S. 107 2005 On the convergence of solutions of multivalued parabolic equations and applications. Zbl 1030.35106Denkowski, Z.; Migórski, S.; Papageorgiou, N. S. 104 2003 Handbook of multivalued analysis. Volume II: Applications. Zbl 0943.47037Hu, Shouchuan; Papageorgiou, Nikolas S. 103 2000 Topological and variational methods with applications to nonlinear boundary value problems. Zbl 1292.47001Motreanu, Dumitru; Motreanu, Viorica Venera; Papageorgiou, Nikolaos 100 2014 Handbook of applied analysis. Zbl 1189.49003Papageorgiou, Nikolaos S.; Kyritsi-Yiallourou, Sophia Th. 98 2009 Nonlinear nonhomogeneous Robin problems with superlinear reaction term. Zbl 1352.35021Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D. 90 2016 Multiple solutions with precise sign for nonlinear parametric Robin problems. Zbl 1287.35010Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D. 89 2014 On the theory of Banach space valued multifunctions. I: Integration and conditional expectation. Zbl 0579.28009Papageorgiou, Nikolaos S. 87 1985 Wang’s multiplicity result for superlinear \((p,q)\)-equations without the Ambrosetti-Rabinowitz condition. Zbl 1300.35017Mugnai, Dimitri; Papageorgiou, Nikolaos S. 76 2014 An introduction to nonlinear analysis. Applications. Zbl 1054.47001Denkowski, Zdzisław; Migórski, Stanisław; Papageorgiou, Nikolas S. 65 2003 Random fixed point theorems for measurable multifunctions in Banach spaces. Zbl 0606.60058Papageorgiou, Nikolaos S. 63 1986 Qualitative phenomena for some classes of quasilinear elliptic equations with multiple resonance. Zbl 1304.35077Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D. 53 2014 Resonant nonlinear Neumann problems with indefinite weight. Zbl 1270.35215Mugnai, Dimitri; Papageorgiou, Nikolaos S. 53 2012 Nonsmooth critical point theory and nonlinear elliptic equations at resonance. Zbl 0964.35055Kourogenis, Nikolaos C.; Papageorgiou, Nikolaos S. 53 2000 Positive solutions for perturbations of the Robin eigenvalue problem plus an indefinite potential. Zbl 1365.35017Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 52 2017 Two bounded solutions of opposite sign for nonlinear hemivariational inequalities at resonance. Zbl 1027.35041Gasiński, L.; Papageorgiou, N. S. 50 2003 Double-phase problems with reaction of arbitrary growth. Zbl 1404.35214Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 49 2018 Double-phase problems and a discontinuity property of the spectrum. Zbl 1423.35289Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 48 2019 Multiple constant sign and nodal solutions for nonlinear elliptic equations with the \(p\)-Laplacian. Zbl 1151.35036Filippakis, Michael E.; Papageorgiou, Nikolaos S. 45 2008 A multiplicity theorem for problems with the \(p\)-Laplacian. Zbl 1231.35085Papageorgiou, Evgenia H.; Papageorgiou, Nikolaos S. 38 2007 Exercises in analysis. II: Nonlinear analysis. Zbl 1351.00006Gasiński, Leszek; Papageorgiou, Nikolaos S. 37 2016 Positive solutions to a Dirichlet problem with \(p\)-Laplacian and concave-convex nonlinearity depending on a parameter. Zbl 1270.35219Marano, Salvatore A.; Papageorgiou, Nikolaos S. 36 2013 Applied nonlinear functional analysis. An introduction. Zbl 1404.46001Papageorgiou, Nikolaos S.; Winkert, Patrick 35 2018 Existence of solutions and periodic solutions for nonlinear evolution inclusions. Zbl 0931.34043Papageorgiou, Nikolaos S.; Papalini, Francesca; Renzacci, Francesca 35 1999 Existence and multiplicity of solutions for Neumann \(p\)-Laplacian-type equations. Zbl 1169.35028Gasiński, Leszek; Papageorgiou, Nikolaos S. 34 2008 Two nontrivial critical points for nonsmooth functionals via local linking and applications. Zbl 1105.49019Kandilakis, Dimitrios; Kourogenis, Nikolaos C.; Papageorgiou, Nikolaos S. 34 2006 Multiple solutions for nonlinear coercive problems with a nonhomogeneous differential operator and a nonsmooth potential. Zbl 1258.35075Gasiński, Leszek; Papageorgiou, Nikolaos S. 32 2012 Existence of five nonzero solutions with exact sign for a \(p\)-Laplacian equation. Zbl 1169.35024Filippakis, Michael; Kristály, Alexandru; Papageorgiou, Nikolaos S. 32 2009 Nonlinear nonhomogeneous singular problems. Zbl 1453.35069Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 31 2020 Seven solutions with sign information for sublinear equations with unbounded and indefinite potential and no symmetries. Zbl 1310.35135Papageorgiou, Nikolaos S.; Papalini, Francesca 31 2014 Existence of multiple solutions with precise sign information for superlinear Neumann problems. Zbl 1188.35057Aizicovici, Sergiu; Papageorgiou, Nikolaos S.; Staicu, Vasile 31 2009 Periodic problems for strongly nonlinear second-order differential inclusions. Zbl 1022.34008Kyritsi, Sophia; Matzakos, Nikolaos; Papageorgiou, Nikolaos S. 31 2002 Coercive and noncoercive nonlinear Neumann problems with indefinite potential. Zbl 1338.35139Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D. 30 2016 Constant-sign and nodal solutions of coercive \((p, q)\)-Laplacian problems. Zbl 1260.35036Marano, Salvatore A.; Papageorgiou, Nikolaos S. 30 2013 Nodal and multiple constant sign solutions for resonant \(p\)-Laplacian equations with a nonsmooth potential. Zbl 1176.35088Gasiński, Leszek; Papageorgiou, Nikolaos S. 29 2009 A bifurcation-type theorem for singular nonlinear elliptic equations. Zbl 1323.35042Papageorgiou, Nikolaos S.; Smyrlis, George 29 2015 Exercises in analysis. Part 1. Zbl 1298.00007Gasiński, Leszek; Papageorgiou, Nikolaos S. 29 2014 Multiple solutions for nonlinear Neumann problems driven by a nonhomogeneous differential operator. Zbl 1226.35021Motreanu, D.; Papageorgiou, N. S. 29 2011 Positive solutions for nonlinear elliptic problems with dependence on the gradient. Zbl 1372.35111Gasiński, Leszek; Papageorgiou, Nikolaos S. 28 2017 Multiple solutions to a Robin problem with indefinite weight and asymmetric reaction. Zbl 1331.35107D’Aguì, Giuseppina; Marano, Salvatore A.; Papageorgiou, Nikolaos S. 28 2016 Nodal solutions for \((p,2)\)-equations. Zbl 1357.35165Aizicovici, Sergiu; Papageorgiou, Nikolaos S.; Staicu, Vasile 27 2015 Generalizations of Browder’s degree theory. Zbl 0821.47043Hu, Shouchuan; Papageorgiou, Nikolaos S. 27 1995 On a class of parametric \((p,2)\)-equations. Zbl 1376.35052Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 25 2017 Resonant \((p,2)\)-equations with asymmetric reaction. Zbl 1327.35125Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D. 25 2015 Noncoercive resonant \((p,2)\)-equations with concave terms. Zbl 1426.35109Papageorgiou, Nikolaos S.; Zhang, Chao 25 2020 Ground state and nodal solutions for a class of double phase problems. Zbl 1437.35358Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 24 2020 Multiplicity of solutions for resonant Neumann problems with an indefinite and unbounded potential. Zbl 1341.35028Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D. 24 2015 Multiplicity of solutions for parametric \(p\)-Laplacian equations with nonlinearity concave near the origin. Zbl 1208.35050Hu, Shouchuan; Papageorgiou, Nikolaos S. 24 2010 On measurable multifunctions with applications to random multivalued equations. Zbl 0634.28005Papageorgiou, Nikolaos S. 24 1987 Multiple solutions to \((p,q)\)-Laplacian problems with resonant concave nonlinearity. Zbl 1333.35080Marano, Salvatore A.; Mosconi, Sunra J. N.; Papageorgiou, Nikolaos S. 23 2016 Semilinear Neumann problems with indefinite and unbounded potential and crossing nonlinearity. Zbl 1301.35052Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D. 23 2013 Positive solutions for nonlinear nonhomogeneous parametric Robin problems. Zbl 1394.35155Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 23 2018 Boundary value problems for evolution inclusions. Zbl 0696.35074Papageorgiou, Nikolaos S. 23 1988 Existence and multiplicity of solutions for Neumann problems. Zbl 1387.35159Motreanu, Dumitru; Papageorgiou, Nikolaos S. 23 2007 Sensitivity analysis for optimal control problems governed by nonlinear evolution inclusions. Zbl 1365.49023Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 22 2017 Bifurcation-type results for nonlinear parametric elliptic equations. Zbl 1242.35035Gasińki, Leszek; Papageorgiou, Nikolaos S. 22 2012 Singular \(p\)-Laplacian equations with superlinear perturbation. Zbl 1417.35050Papageorgiou, Nikolaos S.; Winkert, Patrick 22 2019 Periodic solutions for second order differential inclusions with the scalar \(p\)-Laplacian. Zbl 1110.34007Aizicovici, Sergiu; Papageorgiou, Nikolaos S.; Staicu, Vasile 22 2006 Properties of the relaxed trajectories of evolution equations and optimal control. Zbl 0678.49002Papageorgiou, Nikolaos S. 22 1989 Anisotropic nonlinear Neumann problems. Zbl 1271.35011Gasiński, Leszek; Papageorgiou, Nikolaos S. 21 2011 On the theory of Banach space valued multifunctions. II: Set valued martingales and set valued measures. Zbl 0579.28010Papageorgiou, Nikolaos S. 21 1985 Bifurcation of positive solutions for nonlinear nonhomogeneous Robin and Neumann problems with competing nonlinearities. Zbl 1335.35069Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D. 20 2015 Multiple constant sign and nodal solutions for nonlinear Neumann eigenvalue problems. Zbl 1234.35169Motreanu, Dumitru; Motreanu, Viorica V.; Papageorgiou, Nikolaos S. 20 2011 Dirichlet (\(p,q\))-equations at resonance. Zbl 1279.35051Gasiński, Leszek; Papageorgiou, Nikolaos S. 20 2014 Nonlinear Neumann problems near resonance. Zbl 1168.35018Motreanu, D.; Motreanu, V. V.; Papageorgiou, N. S. 20 2009 On \(p\)-superlinear equations with a nonhomogeneous differential operator. Zbl 1283.35029Aizicovici, Sergiu; Papageorgiou, Nikolaos S.; Staicu, Vasile 19 2013 On the existence of periodic solutions for nonconvex-valued differential inclusions in \(\mathbb{R}^ N\). Zbl 0851.34014Hu, Shouchuan; Papageorgiou, Nikolaos S. 19 1995 On the existence of solutions for nonlinear parabolic problems with nonmonotone discontinuities. Zbl 0901.35043Papageorgiou, Nikolaos S. 19 1997 Positive solutions for the Robin \(p\)-Laplacian problem with competing nonlinearities. Zbl 1411.35101Gasiński, Leszek; Papageorgiou, Nikolaos S. 19 2019 Constant sign and nodal solutions for parametric \((p, 2)\)-equations. Zbl 1426.35108Papageorgiou, Nikolaos S.; Scapellato, Andrea 19 2020 Existence of three nontrivial solutions for nonlinear Neumann hemivariational inequalities. Zbl 1157.35344Iannizzotto, Antonio; Papageorgiou, Nikolaos S. 19 2009 Representation of set valued operators. Zbl 0605.46037Papageorgiou, Nikolaos S. 19 1985 Nonlinear elliptic eigenvalue problems with discontinuities. Zbl 0934.35112Hu, Shouchuan; Kourogenis, N. C.; Papageorgiou, N. S. 19 1999 Robin problems with indefinite, unbounded potential and reaction of arbitrary growth. Zbl 1338.35137Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D. 18 2016 A degree theoretic approach for multiple solutions of constant sign for nonlinear elliptic equations. Zbl 1148.35031Motreanu, D.; Motreanu, V. V.; Papageorgiou, N. S. 18 2007 A stability result for differential inclusions in Banach spaces. Zbl 0594.34016Papageorgiou, Nikolaos S. 18 1986 Multiple nontrivial solutions for nonlinear periodic problems with the \(p\)-Laplacian. Zbl 1148.34003Aizicovici, Sergiu; Papageorgiou, Nikolaos S.; Staicu, Vasile 17 2007 Multiple solutions of constant sign for nonlinear nonsmooth eigenvalue problems near resonance. Zbl 1154.35362Kyritsi, Sophia Th.; Papageorgiou, Nikolaos S. 17 2004 Nonsmooth critical point theory on closed convex sets and nonlinear hemivariational inequalities. Zbl 1067.49005Kyritsi, Sophia Th.; Papageorgiou, Nikolaos S. 17 2005 Nonsmooth critical point theory and nonlinear elliptic equations at resonance. Zbl 0999.58006Kourogenis, Nikolaos C.; Papageorgiou, Nikolaos S. 17 2000 Existence and relaxation results for nonlinear second-order multivalued boundary value problems in \(\mathbb{R}^N\). Zbl 0912.34020Halidias, Nikolaos; Papageorgiou, Nikolaos S. 17 1998 Existence and multiplicity of solutions for double-phase Robin problems. Zbl 1447.35131Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 17 2020 Nonlinear elliptic equations with singular terms and combined nonlinearities. Zbl 1247.35033Gasiński, Leszek; Papageorgiou, Nikolaos S. 16 2012 Nonlinear Neumann equations driven by a nonhomogeneous differential operator. Zbl 1242.58008Hu, Shouchuan; Papageorgiou, Nikolaos S. 16 2011 On \(p\)-Laplace equations with concave terms and asymmetric perturbations. Zbl 1218.35113Motreanu, D.; Motreanu, V. V.; Papageorgiou, N. S. 16 2011 On the topological regularity of the solution set of differential inclusions with constraints. Zbl 0796.34017Hu, Shouchuan; Papageorgiou, Nikolaos S. 16 1994 Positive solutions for nonlinear Neumann problems with singular terms and convection. Zbl 1437.35016Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 16 2020 The spectrum and an index formula for the Neumann \(p\)-Laplacian and multiple solutions for problems with a crossing nonlinearity. Zbl 1197.35184Aizicovici, Sergiu; Papageorgiou, Nikolaos S.; Staicu, V. 16 2009 On multivalued evolution equations and differential inclusions in Banach spaces. Zbl 0641.47052Papageorgiou, Nikolaos S. 16 1987 Multivalued perturbations of subdifferential type evolution equations in Hilbert spaces. Zbl 0667.34078Kravvaritis, Dimitrios; Papageorgiou, Nikolaos S. 16 1988 On the existence of periodic solutions for a class of nonlinear evolution inclusions. Zbl 0795.34009Hu, Shouchuan; Papageorgiou, Nikolaos S. 15 1993 On parametric evolution inclusions of the subdifferential type with applications to optimal control problems. Zbl 0818.34010Papageorgiou, Nikolaos S. 15 1995 Optimal control of nonlinear evolution inclusions. Zbl 0697.49007Papageorgiou, N. S. 15 1990 Resonant \((p, 2)\)-equations with concave terms. Zbl 1308.35075Papageorgiou, Nikolaos S.; Winkert, Patrick 15 2015 Resonant double phase equations. Zbl 1479.35291Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Zhang, Youpei 1 2022 Multiple solutions for superlinear double phase Neumann problems. Zbl 1483.35101Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Zhang, Youpei 1 2022 Least energy solutions with sign information for parametric double phase problems. Zbl 1482.35102Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 1 2022 Multiple solutions for parametric double phase Dirichlet problems. Zbl 1467.35181Papageorgiou, N. S.; Vetro, C.; Vetro, F. 14 2021 Constant sign and nodal solutions for superlinear \((p, q)\)-equations with indefinite potential and a concave boundary term. Zbl 1435.35145Papageorgiou, Nikolaos S.; Zhang, Youpei 10 2021 Positive solutions for resonant (p,q)-equations with convection. Zbl 1448.35266Liu, Zhenhai; Papageorgiou, Nikolaos S. 7 2021 Solutions for parametric double phase Robin problems. Zbl 1473.35319Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 6 2021 Constant sign and nodal solutions for superlinear double phase problems. Zbl 1478.35118Gasiński, Leszek; Papageorgiou, Nikolaos S. 6 2021 Positive solutions for singular double phase problems. Zbl 1467.35025Papageorgiou, Nikolaos S.; Repovš, Dušan D.; Vetro, Calogero 5 2021 Robin double-phase problems with singular and superlinear terms. Zbl 1455.35125Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 2 2021 On the set of positive solutions for resonant Robin \((p, q)\)-equations. Zbl 1479.35297Papageorgiou, Nikolaos S.; Zhang, Youpei 2 2021 Anisotropic singular double Phase Dirichlet problems. Zbl 1482.35101Papageorgiou, Nikolaos S.; Rǎdulescu, Vicenţiu D.; Zhang, Youpei 2 2021 Asymptotically vanishing nodal solutions for critical double phase problems. Zbl 07446494Liu, Zhenhai; Papageorgiou, Nikolaos S. 1 2021 Solutions with sign information for nonlinear Robin problems with no growth restriction on reaction. Zbl 1455.35112Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 1 2021 Schrödinger Robin problems with indefinite potential and logistic reaction. Zbl 1465.35154Gasiński, Leszek; Papageorgiou, Nikolaos S.; Petiurenko, Anna 1 2021 Multiple solutions for Robin \((p,q)\)-equations plus an indefinite potential and a reaction concave near the origin. Zbl 1464.35084Papageorgiou, Nikolaos S.; Scapellato, Andrea 1 2021 Eigenvalue problems and their perturbations for the weighted \((p,q)\)-Laplacian. Zbl 1479.35387Gasiński, Leszek; Papageorgiou, Nikolaos S. 1 2021 Nonlinear singular problems with convection. Zbl 1471.35170Papageorgiou, Nikolaos S.; Scapellato, Andrea 1 2021 Positive solutions for weighted singular \(p\)-Laplace equations via Nehari manifolds. Zbl 1475.35158Papageorgiou, Nikolaos S.; Winkert, Patrick 1 2021 \((p, q)\)-equations with singular and concave convex nonlinearities. Zbl 1479.35492Papageorgiou, Nikolaos S.; Winkert, Patrick 1 2021 Nonlinear nonhomogeneous singular problems. Zbl 1453.35069Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 31 2020 Noncoercive resonant \((p,2)\)-equations with concave terms. Zbl 1426.35109Papageorgiou, Nikolaos S.; Zhang, Chao 25 2020 Ground state and nodal solutions for a class of double phase problems. Zbl 1437.35358Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 24 2020 Constant sign and nodal solutions for parametric \((p, 2)\)-equations. Zbl 1426.35108Papageorgiou, Nikolaos S.; Scapellato, Andrea 19 2020 Existence and multiplicity of solutions for double-phase Robin problems. Zbl 1447.35131Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 17 2020 Positive solutions for nonlinear Neumann problems with singular terms and convection. Zbl 1437.35016Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 16 2020 Continuous spectrum for a two phase eigenvalue problem with an indefinite and unbounded potential. Zbl 1439.35152Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 9 2020 Multiple solutions with sign information for a \(( p, 2)\)-equation with combined nonlinearities. Zbl 1436.35117Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 9 2020 Anisotropic equations with indefinite potential and competing nonlinearities. Zbl 1448.35129Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 9 2020 On a class of critical Robin problems. Zbl 1437.35217Leonardi, Salvatore; Papageorgiou, Nikolaos S. 6 2020 Positive solutions for nonlinear Robin problems with indefinite potential and competing nonlinearities. Zbl 1437.35218Leonardi, S.; Papageorgiou, Nikolaos S. 6 2020 \((p, 2)\)-equations with a crossing nonlinearity and concave terms. Zbl 1435.35189Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 4 2020 Relaxation for a class of control systems with unilateral constraints. Zbl 1456.34017Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 4 2020 Nonlinear nonhomogeneous Robin problems with gradient dependent reaction. Zbl 1454.35168Gasiński, Leszek; Krech, Ireneusz; Papageorgiou, Nikolaos S. 4 2020 Positive solutions for anisotropic singular \((p,q)\)-equations. Zbl 1471.35153Papageorgiou, Nikolaos S.; Scapellato, Andrea 4 2020 Multiple solutions with sign information for semilinear Neumann problems with convection. Zbl 1435.35164Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 3 2020 Existence and multiplicity of positive solutions for parametric nonlinear nonhomogeneous singular Robin problems. Zbl 1444.35046Leonardi, S.; Papageorgiou, Nikolaos S. 2 2020 Nonlinear, nonhomogeneous Robin problems with indefinite potential and general reaction. Zbl 1441.35109Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 2 2020 \((p, 2)\)-equations resonant at any variational eigenvalue. Zbl 1444.35042Papageorgiou, N. S.; Vetro, C.; Vetro, F. 2 2020 Parameter dependence for the positive solutions of nonlinear, nonhomogeneous Robin problems. Zbl 1444.35040Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 2 2020 Anisotropic double-phase problems with indefinite potential: multiplicity of solutions. Zbl 1454.35087Papageorgiou, Nikolaos S.; Qin, Dongdong; Rădulescu, Vicenţiu D. 2 2020 Positive solutions for nonlinear Dirichlet problems with convection. Zbl 1448.35264Hu, Shouchuan; Papageorgiou, Nikolas S. 2 2020 Positive and nodal solutions for nonlinear nonhomogeneous parametric Neumann problems. Zbl 1435.35188Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 1 2020 Positive solutions for \((p,2)\)-equations with superlinear reaction and a concave boundary term. Zbl 1449.35239Papageorgiou, Nikolaos; Scapellato, Andrea 1 2020 Nonlinear nonhomogeneous Robin problems with almost critical and partially concave reaction. Zbl 1437.35222Papageorgiou, Nikolaos S.; Repovš, Dušan D.; Vetro, Calogero 1 2020 Multiple solutions with sign information for a class of coercive \((p, 2)\)-equations. Zbl 1437.35359Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 1 2020 Positive solutions for parametric singular Dirichlet \(( p, q)\)-equations. Zbl 1444.35041Papageorgiou, Nikolaos S.; Vetro, Calogero; Zhang, Youpei 1 2020 Relaxation methods for optimal control problems. Zbl 1467.49012Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 1 2020 Nonlinear analysis – theory and methods. Zbl 1414.46003Papageorgiou, Nikolaos S.; Rǎdulescu, Vicenţiu D.; Repovš, Dušan D. 152 2019 Double-phase problems and a discontinuity property of the spectrum. Zbl 1423.35289Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 48 2019 Singular \(p\)-Laplacian equations with superlinear perturbation. Zbl 1417.35050Papageorgiou, Nikolaos S.; Winkert, Patrick 22 2019 Positive solutions for the Robin \(p\)-Laplacian problem with competing nonlinearities. Zbl 1411.35101Gasiński, Leszek; Papageorgiou, Nikolaos S. 19 2019 Superlinear \((p(z),q(z))\)-equations. Zbl 1409.35069Papageorgiou, N. S.; Vetro, Calogero 13 2019 On a Dirichlet problem with \((p,q)\)-Laplacian and parametric concave-convex nonlinearity. Zbl 1422.35095Marano, Salvatore A.; Marino, Greta; Papageorgiou, Nikolaos S. 11 2019 Positive solutions for nonlinear parametric singular Dirichlet problems. Zbl 1471.35168Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 8 2019 Nonlinear Dirichlet problems with the combined effects of singular and convection terms. Zbl 1418.35194Bai, Yunru; Gasinski, Leszek; Papageorgiou, Nikolaos S. 7 2019 Positive solutions for singular \((p,2)\)-equations. Zbl 1432.35101Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 7 2019 Positive solutions for a class of singular Dirichlet problems. Zbl 1429.35065Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 7 2019 On a Robin \(((p,q)\)-equation with a logistic reaction. Zbl 1435.35144Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 6 2019 Parametric nonlinear singular Dirichlet problems. Zbl 1421.35176Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 6 2019 Nonlinear nonhomogeneous Robin problems with convection. Zbl 1422.35089Candito, Pasquale; Gasiński, Leszek; Papageorgiou, Nikolaos S. 6 2019 Periodic solutions for implicit evolution inclusions. Zbl 1476.34103Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 5 2019 Multiple solutions for \((p, 2)\)-equations at resonance. Zbl 1421.35177Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 5 2019 Multiple nodal solutions to a Robin problem with sign-changing potential and locally defined reaction. Zbl 1429.35063Guarnotta, Umberto; Marano, Salvatore A.; Papageorgiou, Nikolaos S. 5 2019 Nonlinear singular problems with indefinite potential term. Zbl 1435.35176Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 4 2019 Nonlinear nonhomogeneous boundary value problems with competition phenomena. Zbl 1426.35107Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 4 2019 Nonlinear vector Duffing inclusions with no growth restriction on the orientor field. Zbl 1432.34027Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 3 2019 Nonlinear Robin problems with general potential and crossing reaction. Zbl 1429.35066Papageorgiou, Nikolaos S.; Scapellato, Andrea 3 2019 Solutions with sign information for nonlinear nonhomogeneous problems. Zbl 1423.35096Papageorgiou, Nikolaos S.; Winkert, Patrick 3 2019 Solutions and positive solutions for superlinear Robin problems. Zbl 1466.35195Papageorgiou, N. S.; Vetro, C.; Vetro, F. 2 2019 Parametric nonlinear resonant Robin problems. Zbl 1439.35151Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 2 2019 Robin problems for the \(p\)-Laplacian with gradient dependence. Zbl 1432.35070Fragnelli, Genni; Mugnai, Dimitri; Papageorgiou, Nikolaos S. 2 2019 Multiple solutions for \((p,2)\)-equations with resonance and concave terms. Zbl 1423.35126Gasiński, Leszek; Papageorgiou, Nikolaos S. 2 2019 On a nonlinear parametric Robin problem with a locally defined reaction. Zbl 1426.35106Gasiński, Leszek; Papageorgiou, Nikolaos S. 2 2019 Nonlinear multivalued periodic systems. Zbl 1421.34017Gasiński, Leszek; Papageorgiou, Nikolaos S. 2 2019 Positive solutions for nonlinear singular superlinear elliptic equations. Zbl 1432.35098Bai, Yunru; Gasiński, Leszek; Papageorgiou, Nikolaos S. 1 2019 Positive solutions for nonlinear Robin problems with concave terms. Zbl 1436.35113Gasiński, Leszek; Papageorgiou, Nikolaos S.; Winowski, Krzysztof 1 2019 Perturbations of nonlinear eigenvalue problems. Zbl 1417.35021Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 1 2019 Asymmetric Robin problems with indefinite potential and concave terms. Zbl 1423.35122Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 1 2019 Existence of positive solutions for nonlinear Robin problems with gradient dependence. Zbl 1432.35102Papageorgiou, Nikolaos S.; Zhang, Chao 1 2019 Multivalued periodic Lienard systems. Zbl 1425.34043Gasiński, Leszek; Papageorgiou, Nikolaos S. 1 2019 Pairs of solutions for Robin problems with an indefinite and unbounded potential, resonant at zero and infinity. Zbl 1421.35175Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 1 2019 Nonlinear Dirichlet problems with sign changing drift coefficient. Zbl 1421.35171Gasiński, Leszek; Papageorgiou, Nikolaos S. 1 2019 Double-phase problems with reaction of arbitrary growth. Zbl 1404.35214Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 49 2018 Applied nonlinear functional analysis. An introduction. Zbl 1404.46001Papageorgiou, Nikolaos S.; Winkert, Patrick 35 2018 Positive solutions for nonlinear nonhomogeneous parametric Robin problems. Zbl 1394.35155Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 23 2018 \((p,2)\)-equations asymmetric at both zero and infinity. Zbl 1401.35085Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 14 2018 Nonlinear elliptic inclusions with unilateral constraint and dependence on the gradient. Zbl 1394.35183Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 13 2018 Nonlinear nonhomogeneous Robin problems with dependence on the gradient. Zbl 1407.35083Bai, Yunru; Gasiński, Leszek; Papageorgiou, Nikolaos S. 11 2018 On a \((p,q)\)-Laplacian problem with parametric concave term and asymmetric perturbation. Zbl 1394.35154Marano, Salvatore A.; Mosconi, Sunra J. N.; Papageorgiou, Nikolaos S. 9 2018 Existence and multiplicity results for resonant fractional boundary value problems. Zbl 1386.35439Iannizzotto, Antonio; Papageorgiou, Nikolaos S. 9 2018 Nonlinear second order evolution inclusions with noncoercive viscosity term. Zbl 1391.35285Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 7 2018 Nonlinear multivalued Duffing systems. Zbl 1467.34019Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 7 2018 Positive solutions for superdiffusive mixed problems. Zbl 1393.35047Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 6 2018 Existence and multiplicity of solutions for resonant \((p,2)\)-equations. Zbl 1386.35125Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 6 2018 Existence of positive solutions for nonlinear Dirichlet problems with gradient dependence and arbitrary growth. Zbl 1413.35197Papageorgiou, Nikolaos; Vetro, Calogero; Vetro, Francesca 6 2018 Nodal solutions for nonlinear nonhomogeneous Robin problems. Zbl 1409.35068Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 5 2018 Extremal solutions and strong relaxation for nonlinear multivalued systems with maximal monotone terms. Zbl 1396.34010Papageorgiou, Nikolaos S.; Vetro, Calogero; Vetro, Francesca 5 2018 Periodic solutions for a class of evolution inclusions. Zbl 1421.34042Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 5 2018 Positive solutions for nonvariational Robin problems. Zbl 1404.35213Papageorgiou, Nikolaos S.; Rădulescu, Vicenţiu D.; Repovš, Dušan D. 5 2018 ...and 609 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 1,975 Authors 491 Papageorgiou, Nikolaos S. 111 Rădulescu, Vicenţiu D. 106 Migórski, Stanisław 95 Gasiński, Leszek 57 Liu, Zhenhai 52 Vetro, Calogero 51 Motreanu, Dumitru 51 Ntouyas, Sotiris K. 50 Repovš, Dušan D. 44 Winkert, Patrick 44 Zeng, Shengda 41 Ahmad, Bashir 38 Benchohra, Mouffak 37 Vetro, Francesca 36 Sofonea, Mircea 33 Ochal, Anna 32 Staicu, Vasile 24 Marano, Salvatore Angelo 23 Papalini, Francesca 22 O’Regan, Donal 21 Al-saedi, Ahmed Eid Salem 21 Ouahab, Abdelghani 20 Agarwal, Ravi P. 20 Andres, Jan 20 Kalita, Piotr 20 Xue, Xiaoping 19 Cardinali, Tiziana 19 Ge, Bin 19 Hu, Shouchuan 19 Mugnai, Dimitri 18 Chang, Yong-Kui 18 Kyritsi, Sophia Th. 18 Nieto Roig, Juan Jose 17 Aizicovici, Sergiu 17 Bai, Yunru 17 Carl, Siegfried 17 Figueiredo, Giovany Malcher 17 Filippakis, Michael E. 16 Beg, Ismat 16 Gavrilut, Alina Cristiana 16 Han, Weimin 16 Obukhovskiĭ, Valeriĭ Vladimirovich 16 Tanaka, Mieko 16 Tang, Xianhua 15 Bonanno, Gabriele 15 De Blasi, Francesco Saverio 15 Iannizzotto, Antonio 15 Zeng, Biao 14 Le, Vy Khoi 14 Shahzad, Naseer 13 Alves, Claudianor Oliveira 13 Huang, Nan-Jing 13 Livrea, Roberto 13 Malinowski, Marek T. 13 Zhang, Youpei 12 Bartosz, Krzysztof 12 He, Tieshan 12 Huang, Lihong 12 Molica Bisci, Giovanni 12 Vijayakumar, Velusamy 12 Zhou, Yong 11 Avgerinos, Evgenios P. 11 Barletta, Giuseppina 11 Kandilakis, Dimitrios A. 11 Li, Shoumei 11 Malaguti, Luisa 11 Pianigiani, Giulio 11 Wang, Jinrong 10 Abbas, Mujahid 10 Candito, Pasquale 10 Dai, Guowei 10 Denkowski, Zdzislaw 10 Donchev, Tzanko Donchev 10 Li, Xiuwen 10 Motreanu, Viorica Venera 10 Rubbioni, Paola 9 Chen, Sitong 9 Cheng, Yi 9 Abreu Goncalves, Jose Valdo 9 Kasyanov, Pavlo O. 9 Michta, Mariusz 9 Nguyen Van Loi 9 Precup, Radu 9 Wu, Xian 8 Henderson, Johnny Lee 8 Kravvaritis, Dimitrios C. 8 Kristály, Alexandru 8 Liu, Xiaoyou 8 Mahmudov, Elimhan Nadir 8 Park, Jong Yeoul 8 Teng, Kaimin 8 Wu, Hsien-Chung 8 Xiao, Yibin 8 Yan, Zuomao 8 Yao, Jen-Chih 7 Alleche, Boualem 7 Benedetti, Irene 7 D’Aguì, Giuseppina 7 Di Piazza, Luisa 7 Kourogenis, Nikolaos C. ...and 1,875 more Authors all top 5 Cited in 324 Serials 239 Nonlinear Analysis. 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