Miwa, Tetsuji Painlevé property of monodromy preserving deformation equations and the analyticity of \(\tau\) functions. (English) Zbl 0605.34005 Publ. Res. Inst. Math. Sci. 17, No. 2, 703-721 (1981). MSC: 34M55 34C05 PDFBibTeX XMLCite \textit{T. Miwa}, Publ. Res. Inst. Math. Sci. 17, 703--721 (1981; Zbl 0605.34005) Full Text: DOI
Khalil, Farrukh The Cauchy-Poisson problem for finite depth. (English) Zbl 0588.76031 Ganit 1, 85-91 (1981). MSC: 76B15 PDFBibTeX XMLCite \textit{F. Khalil}, Ganit 1, 85--91 (1981; Zbl 0588.76031)
Gurel, Okan Individual peeling of multiple singular points. (English) Zbl 0583.34024 Z. Naturforsch. A 36, 311-316 (1981). MSC: 34C05 PDFBibTeX XMLCite \textit{O. Gurel}, Z. Naturforsch., A 36, 311--316 (1981; Zbl 0583.34024)
Gurel, Okan Exploded points. (English) Zbl 0583.34023 Z. Naturforsch. A 36, 72-75 (1981). MSC: 34C05 PDFBibTeX XMLCite \textit{O. Gurel}, Z. Naturforsch., A 36, 72--75 (1981; Zbl 0583.34023)
Zuppa, Carlos Order of cyclicity of the singular point of Liénard’s polynomial vector fields. (English) Zbl 0577.34023 Bol. Soc. Bras. Mat. 12, No. 2, 105-111 (1981). Reviewer: R.Lee MSC: 34C05 PDFBibTeX XMLCite \textit{C. Zuppa}, Bol. Soc. Bras. Mat. 12, No. 2, 105--111 (1981; Zbl 0577.34023) Full Text: DOI
Khabbaz, Samir A. Resolving the singularities of differential equations. (English) Zbl 0559.34038 Arab J. Math. 2, 5-34 (1981). MSC: 34C20 34A25 34C05 PDFBibTeX XMLCite \textit{S. A. Khabbaz}, Arab J. Math. 2, 5--34 (1981; Zbl 0559.34038)
Hinton, Don On the deficiency index problem. (English) Zbl 0556.34013 Contributions to analysis and geometry, Suppl. Am. J. Math., 151-161 (1981). Reviewer: R.Reißig MSC: 34L99 34C05 47E05 34A30 PDFBibTeX XML
Xu, Shilong A note on Perko’s theorem B. (English) Zbl 0553.34020 Kexue Tongbao, Foreign Lang. Ed. 26, 205-206 (1981). Reviewer: D.Zhang MSC: 34C05 PDFBibTeX XMLCite \textit{S. Xu}, Kexue Tongbao, Sci. Bull. 26, 205--206 (1981; Zbl 0553.34020)
Weber, Horst Sätze vom Fredholm Typ und Verzweigungsprobleme für nichtlineare Operatoren mit Anwendungen. (German) Zbl 0548.47033 Mathematisch-Naturwissenschaftliche Fakultät der Universität Düsseldorf. 200 S. (1981). Reviewer: G.Hetzer MSC: 47J05 45G10 47J10 PDFBibTeX XML
Carpenter, Gail A. Normal and abnormal signal patterns in nerve cells. (English) Zbl 0545.92005 Mathematical psychology and psychophysiology, Proc. Symp., Philadelphia 1980, SIAM-AMS Proc. 13, 49-90 (1981). MSC: 92Cxx 34C05 34C25 PDFBibTeX XML
Gaishun, I. V. Orbit properties of completely integrable equation. (English) Zbl 0543.34036 Functional differential systems and related topics, Proc. 2nd int. Conf., Błażejewko/Pol. 1981, 119-125 (1981). Reviewer: R.Lee MSC: 37-XX 34C05 PDFBibTeX XML
Meyer, Gottfried Peter Inversion von Exponentialpolynomen in der Nähe von transzendent kritischen Stellen. (English) Zbl 0539.30003 Fakultät für Mathematik der Bayerischen Julius-Maximilian-Universität Würzburg. 69 S. (1981). Reviewer: A.J.van der Poorten MSC: 30B50 30C15 11L03 30C10 PDFBibTeX XML
Dolov, M. V. Quasicanonical integrals. (English) Zbl 0536.34019 Differ. Equations 17, 279-287 (1981). MSC: 34C05 PDFBibTeX XMLCite \textit{M. V. Dolov}, Differ. Equations 17, 279--287 (1981; Zbl 0536.34019)
Lyashko, I. I.; Boyarchuk, A. K.; Gaj, Ya. G.; Kalajda, A. F. Differential equations. Textbook. (Differentsial’nye uravneniya. Uchebnoe posobie). (Ukrainian) Zbl 0531.34001 Kiev: Golovnoe Izdatel’stvo Izdatel’skogo Ob”edineniya ”Vishcha Shkola”. 504 p. R. 1.40 (1981). Reviewer: J.Chrastina MSC: 34-01 34A12 34A30 34E05 34E20 34A05 34L99 34D20 34C05 PDFBibTeX XML
Bureau, F. J. Systemes différentiels à points critiques fixes. IX: Les systèmes différentiels polynomiaux stables. (French) Zbl 0529.34009 Bull. Cl. Sci., V. Ser., Acad. R. Belg. 67, 755-781 (1981). MSC: 34M99 34D99 34C05 PDFBibTeX XMLCite \textit{F. J. Bureau}, Bull. Cl. Sci., V. Sér., Acad. R. Belg. 67, 755--781 (1981; Zbl 0529.34009)
Bureau, F. J. Systemes différentiels à points fixes. VIII: Les systèmes différentiels polynomiaux stables. (French) Zbl 0529.34008 Bull. Cl. Sci., V. Ser., Acad. R. Belg. 67, 637-665 (1981). MSC: 34M99 34D99 34C05 PDFBibTeX XMLCite \textit{F. J. Bureau}, Bull. Cl. Sci., V. Sér., Acad. R. Belg. 67, 637--665 (1981; Zbl 0529.34008)
Shi, Songling On limit cycles of plane quadratic systems. (English) Zbl 0528.34031 Sci. Sin. 24, 153-159 (1981). MSC: 34C05 PDFBibTeX XMLCite \textit{S. Shi}, Sci. Sin. 24, 153--159 (1981; Zbl 0528.34031)
Shemyakina, T. K.; Yablonskij, A. I. On the absence of non-holomorphic solutions in the neighbourhood of a singular fixed point of some classes of systems of two equations. (Russian) Zbl 0526.34004 Differ. Uravn. 17, 1713-1716 (1981). MSC: 34M99 34C05 PDFBibTeX XMLCite \textit{T. K. Shemyakina} and \textit{A. I. Yablonskij}, Differ. Uravn. 17, 1713--1716 (1981; Zbl 0526.34004)
Blazquez, M.; Saez, E.; Canas, M. On special cases of the Lotka-Volterra model of order two. (Spanish) Zbl 0519.92020 Scientia 46, 19-29 (1981). MSC: 92D25 34C05 PDFBibTeX XMLCite \textit{M. Blazquez} et al., Scientia 46, 19--29 (1981; Zbl 0519.92020)
Zhang, Jin-Yan Geometric theory of ordinary differential equations and bifurcation problems. (Chinese) Zbl 0519.34002 Beijing: Beijing University Press. II, 265 p. Yuan 1.25 (1981). MSC: 34-01 34C25 34C05 37-XX 34C10 34C15 PDFBibTeX XML
Zhang, Zhifen On the existence of two and only two limit cycles for the Lienard’s equation. (Chinese) Zbl 0517.34023 Acta Math. Sin. 24, 710-716 (1981). MSC: 34C05 PDFBibTeX XMLCite \textit{Z. Zhang}, Acta Math. Sin. 24, 710--716 (1981; Zbl 0517.34023)
Atherton, Derek P. Stability of nonlinear systems. (English) Zbl 0515.93001 Electronic & Electrical Engineering Research Studies: Control Theory and Applications Studies Series, 1. Chichester - New York: Research Studies Press (John Wiley & Sons). XII, 231 p. $ 30.00 (1981). MSC: 93-01 93C10 93D05 34A34 34C05 34D20 37C75 37G15 70K05 70K20 93B17 93B50 93C15 PDFBibTeX XML
Sharipov, Sh. R.; Khusanov, B.; Mamashev, S. Kh. On some questions of the trajectories of an N-dimensional generalized- homogeneous differential system. (Russian) Zbl 0515.34024 Izv. Akad. Nauk Kaz. SSR, Ser. Fiz.-Mat. 1981, No. 3, 38-43 (1981). MSC: 34C05 37-XX PDFBibTeX XMLCite \textit{Sh. R. Sharipov} et al., Izv. Akad. Nauk Kaz. SSR, Ser. Fiz.-Mat. 1981, No. 3, 38--43 (1981; Zbl 0515.34024)
Zunquan, Liu; Chaobin, Qin Mechanical deduction of formulas of differential equations. (English) Zbl 0514.65064 Sci. Sin. 24, 313-323 (1981). MSC: 65L07 34C05 PDFBibTeX XMLCite \textit{L. Zunquan} and \textit{Q. Chaobin}, Sci. Sin. 24, 313--323 (1981; Zbl 0514.65064)
Borisyuk, R. M. Stationary solutions of a system of ordinary differential equations depending on a parameter. Vol. 6. (Statsionarnye resheniya sistemy obyuknovennykh differentisial’nykh uravnenij, zavisyashchej ot parametra. Materialy po matematicheskomu obespecheniyu EhVM. Vypusk 6). (Russian) Zbl 0514.34001 Akademiya Nauk SSSR. Nauchnyj Tsentr Biologicheskikh Issledovanij. Nauchno-Issledovatel’skij Vychislitel’nyj Tsentr. Pushchino: Nauchnyj Tsentr Biologicheskikh Issledovanij AN SSSR. 68 p. R. 0.80 (1981). MSC: 34-04 65L20 34D99 34C05 PDFBibTeX XML
Cherkas, L. A. Two remarks concerning conditions of the center. (Russian) Zbl 0513.34034 Differ. Uravn. 17, 1709-1712 (1981). MSC: 34C05 PDFBibTeX XMLCite \textit{L. A. Cherkas}, Differ. Uravn. 17, 1709--1712 (1981; Zbl 0513.34034)
Rozet, I. G. Three-dimensional autonomous systems with knotted trajectories and various types of limit cycles. (English) Zbl 0512.34034 Differ. Equations 17, 632-636 (1981). MSC: 34C25 34C05 34C40 34C15 PDFBibTeX XMLCite \textit{I. G. Rozet}, Differ. Equations 17, 632--636 (1981; Zbl 0512.34034)
Bertolino, Milorad Asymptotes verticales des solutions des équations différentielles. (French) Zbl 0512.34024 Mat. Vesn. 5(18)(33), 139-144 (1981). MSC: 34C05 34C11 PDFBibTeX XMLCite \textit{M. Bertolino}, Mat. Vesn. 5(18)(33), 139--144 (1981; Zbl 0512.34024)
Alymkulov, K. The solution of a perturbed differential equation with some singular points. (Russian) Zbl 0511.34040 Issled. Integro-Differ. Uravn. 14, 265-269 (1981). MSC: 34E10 34A45 34C05 PDFBibTeX XML
Polesya, I. V. Invariant sets of autonomous differential systems. (English. Russian original) Zbl 0509.34049 Differ. Equations 17, 437-442 (1981); translation from Differ. Uravn. 17, 643-650 (1981). MSC: 37-XX 34C05 PDFBibTeX XMLCite \textit{I. V. Polesya}, Differ. Equations 17, 437--442 (1981; Zbl 0509.34049); translation from Differ. Uravn. 17, 643--650 (1981)
Samojlenko, A. M. Green’s function of a linear extension of a dynamic system on a torus, its conditions of uniqueness and the properties following from them. (English) Zbl 0508.34034 Ukr. Math. J. 32, 537-542 (1981). MSC: 34C30 34C05 37-XX PDFBibTeX XMLCite \textit{A. M. Samojlenko}, Ukr. Math. J. 32, 537--542 (1981; Zbl 0508.34034) Full Text: DOI
Prosenyuk, L. G. Existence and asymptotic behavior of solutions of a real system of differential equations near a singular point. (English) Zbl 0508.34020 Ukr. Math. J. 33, No. 1, 82-84 (1981). MSC: 34C05 34E05 PDFBibTeX XMLCite \textit{L. G. Prosenyuk}, Ukr. Math. J. 33, 82--84 (1981; Zbl 0508.34020) Full Text: DOI
Kazantzis, P. G. Numerical investigation of symmetric and asymmetric periodic oscillations. (English) Zbl 0507.70025 Astrophys. Space Sci. 78, 27-43 (1981). MSC: 70K99 70-08 65L99 34C05 34C10 34C25 PDFBibTeX XMLCite \textit{P. G. Kazantzis}, Astrophys. Space Sci. 78, 27--43 (1981; Zbl 0507.70025) Full Text: DOI
Gromak, V. I.; Pilipchuk, L. A.; Bachurina, E. V. On the distributions of poles of the solutions of the second Painleve equation. (Russian) Zbl 0507.34026 Vestn. Beloruss. Gos. Univ. Im. V. I. Lenina, Ser. I 1981, No. 1, 38-40 (1981). MSC: 34C05 34M55 65J99 PDFBibTeX XMLCite \textit{V. I. Gromak} et al., Vestn. Beloruss. Gos. Univ. Im. V. I. Lenina, Ser. I 1981, No. 1, 38--40 (1981; Zbl 0507.34026)
Cassou-Nogues, Pierrette Series de Dirichlet. (French) Zbl 0507.12007 Semin. Theor. Nombres 1980-1981, Expose No. 22, 14 p. (1981). MSC: 11R42 11M35 PDFBibTeX XML Full Text: EuDML
Bureau, F. J. Systemes différentiels à points critiques fixes. IV: Points singuliers des intégrales. (French) Zbl 0505.34025 Bull. Cl. Sci., V. Ser., Acad. R. Belg. 67, 241-247 (1981). MSC: 34C05 PDFBibTeX XMLCite \textit{F. J. Bureau}, Bull. Cl. Sci., V. Sér., Acad. R. Belg. 67, 241--247 (1981; Zbl 0505.34025)
Tyson, John J. Nonlinear analysis of simple metabolic control circuits. (English) Zbl 0504.92018 Applications of nonlinear analysis in the physical sciences, Pap. Workshop, Bielefeld 1979, 310-322 (1981). MSC: 92Cxx 34C05 93C15 PDFBibTeX XML
Braddock, R. D.; van den Driessche, P. A population model with two delays. (English) Zbl 0503.92019 Quantitative population dynamics, Stat. Ecol. Ser. 13, 105-138 (1981). MSC: 92D25 34K05 34K20 34K99 34C05 PDFBibTeX XML
Cherkas, L. A. Structure of a Poincaré map in the neighborhood of a separatrix cycle of a perturbed analytic autonomous system in the plane. (English. Russian original) Zbl 0503.34019 Differ. Equations 17, 321-328 (1981); translation from Differ. Uravn. 17, 469-478 (1981). MSC: 34C05 34D10 34C99 PDFBibTeX XMLCite \textit{L. A. Cherkas}, Differ. Equations 17, 321--328 (1981; Zbl 0503.34019); translation from Differ. Uravn. 17, 469--478 (1981)
Wang, Kai Locally smooth torus group actions on integral cohomology complex projective spaces. (English) Zbl 0502.57019 Pac. J. Math. 94, 243-250 (1981). MSC: 57S25 57S10 PDFBibTeX XMLCite \textit{K. Wang}, Pac. J. Math. 94, 243--250 (1981; Zbl 0502.57019) Full Text: DOI
Moore, Jane Existence of multiple quasifixed points of mixed monotone operators by iterative techniques. (English) Zbl 0502.47029 Appl. Math. Comput. 9, 135-141 (1981). MSC: 47H10 65J15 47H07 45G10 PDFBibTeX XMLCite \textit{J. Moore}, Appl. Math. Comput. 9, 135--141 (1981; Zbl 0502.47029) Full Text: DOI
Anisovich, V. V.; Kalinovskij, V. D. On the determination of a saddle point of a nonlinear functional involving linear differential relations. (Russian) Zbl 0502.34053 Ukr. Mat. Zh. 33, 379-382 (1981). MSC: 34H05 49K35 34C05 34A34 PDFBibTeX XMLCite \textit{V. V. Anisovich} and \textit{V. D. Kalinovskij}, Ukr. Mat. Zh. 33, 379--382 (1981; Zbl 0502.34053)
Nazmutdinov, A. T.; Mudarisov, I. Kh. Limit cycles of a class of nonlinear differential equations. (English) Zbl 0502.34020 Sov. Math. 25, No. 6, 44-48 (1981). MSC: 34C05 34C15 34C25 PDFBibTeX XMLCite \textit{A. T. Nazmutdinov} and \textit{I. Kh. Mudarisov}, Sov. Math. 25, No. 6, 44--48 (1981; Zbl 0502.34020)
Nobuoka, Katsudo Isomonodromy problem of Schlesinger equations. (English) Zbl 0501.34028 Proc. Japan Acad., Ser. A 57, 488-491 (1981). MSC: 34C05 34A30 PDFBibTeX XMLCite \textit{K. Nobuoka}, Proc. Japan Acad., Ser. A 57, 488--491 (1981; Zbl 0501.34028) Full Text: DOI
Kalitin, B. S. On the stability of discontinuous limits cycles of two-dimensional autonomous systems. (Russian) Zbl 0501.34027 Vestn. Beloruss. Gos. Univ. Im. V. I. Lenina, Ser. I 1981, No. 2, 44-48 (1981). MSC: 34C05 34D20 PDFBibTeX XMLCite \textit{B. S. Kalitin}, Vestn. Beloruss. Gos. Univ. Im. V. I. Lenina, Ser. I 1981, No. 2, 44--48 (1981; Zbl 0501.34027)
Mohr, Ernst Eine Bemerkung zur Weylschen Theorie vom Grenzkreis- und Grenzpunktfall. (German) Zbl 0501.34021 Ann. Mat. Pura Appl., IV. Ser. 129, 161-199 (1981). MSC: 34B20 34L99 34C05 PDFBibTeX XMLCite \textit{E. Mohr}, Ann. Mat. Pura Appl. (4) 129, 161--199 (1981; Zbl 0501.34021) Full Text: DOI
Chatelin, Francoise The iterated projection solution for the Fredholm integral equation of second kind. (English) Zbl 0499.65060 Res. Rep., Math. Sci. IMS-2, 19 p. (1981). MSC: 65R20 45B05 PDFBibTeX XML
Bureau, F. J. Systemes différentiels à points critiques fixes. III: Points singuliers des intégrales. (French) Zbl 0499.34005 Bull. Cl. Sci., V. Ser., Acad. R. Belg. 67, 63-79 (1981). MSC: 34M99 34C05 34A30 34A34 PDFBibTeX XMLCite \textit{F. J. Bureau}, Bull. Cl. Sci., V. Sér., Acad. R. Belg. 67, 63--79 (1981; Zbl 0499.34005)
Hsu, Sze-Bi; Cheng, Kuo-Shung; Hubbell, S. P. Exploitative competition of microorganisms for two complementary nutrients in continuous cultures. (English) Zbl 0498.92014 SIAM J. Appl. Math. 41, 422-444 (1981). MSC: 92D25 34C05 37-XX PDFBibTeX XMLCite \textit{S.-B. Hsu} et al., SIAM J. Appl. Math. 41, 422--444 (1981; Zbl 0498.92014) Full Text: DOI
Anderson, Stephen L. Green’s function, Jensen measures, and bounded point evaluations. (English) Zbl 0498.46038 J. Funct. Anal. 43, 360-367 (1981). MSC: 46J15 PDFBibTeX XMLCite \textit{S. L. Anderson}, J. Funct. Anal. 43, 360--367 (1981; Zbl 0498.46038) Full Text: DOI
Pyzhkova, N. V. Solution of the problem of isochronism of the center for a certain system of nonlinear oscillations. (Russian) Zbl 0498.34025 Vestn. Beloruss. Gos. Univ. Im. V. I. Lenina, Ser. I 1981, No. 1, 52-54 (1981). MSC: 34C15 34C05 PDFBibTeX XMLCite \textit{N. V. Pyzhkova}, Vestn. Beloruss. Gos. Univ. Im. V. I. Lenina, Ser. I 1981, No. 1, 52--54 (1981; Zbl 0498.34025)
Fokin, M. V. On limit sets of trajectories of dynamic systems of gradient type. (Russian) Zbl 0498.34020 Mat. Sb., N. Ser. 116(158), 502-514 (1981). MSC: 34C05 37-XX 35B40 PDFBibTeX XMLCite \textit{M. V. Fokin}, Mat. Sb., Nov. Ser. 116(158), 502--514 (1981; Zbl 0498.34020) Full Text: EuDML
Butenina, N. N. Multiple confluence of separatrices and limit cycles. (Russian) Zbl 0498.34019 Differ. Uravn. 17, 732-734 (1981). MSC: 34C05 34D10 34A12 34D30 37-XX PDFBibTeX XMLCite \textit{N. N. Butenina}, Differ. Uravn. 17, 732--734 (1981; Zbl 0498.34019)
Kulikov, A. Application of Kolesov’s amplitude method to the problem on the diffusion instability. (Russian) Zbl 0498.34010 Differ. Uravn. Primen. 29, 51-67 (1981). MSC: 34B15 34C05 34C10 34D20 PDFBibTeX XMLCite \textit{A. Kulikov}, Differ. Uravn. Primen. 29, 51--67 (1981; Zbl 0498.34010)
Sverdlove, Ronald Inverse problems for dynamical systems. (English) Zbl 0496.34011 J. Differ. Equations 42, 72-105 (1981). MSC: 34A55 34C05 37-XX 34D20 34C25 PDFBibTeX XMLCite \textit{R. Sverdlove}, J. Differ. Equations 42, 72--105 (1981; Zbl 0496.34011) Full Text: DOI
Butler, G. J.; Waltman, Paul Existence of a periodic solution for a two predator - one prey ecosystem modeled on a chemostat. (English) Zbl 0495.92023 Mathematical biology, Proc. Conf., Carbondale/Ill. 1980, 15-19 (1981). MSC: 92D40 34C25 92D25 34C05 PDFBibTeX XML
Babelon, O.; Viallet, C. M. The Riemannian geometry of the configuration space of gauge theories. (English) Zbl 0495.58003 Commun. Math. Phys. 81, 515-525 (1981). MSC: 58B20 58D30 53C80 70G10 81T08 PDFBibTeX XMLCite \textit{O. Babelon} and \textit{C. M. Viallet}, Commun. Math. Phys. 81, 515--525 (1981; Zbl 0495.58003) Full Text: DOI
Liu, Nangen The distribution of the limit cycles for one class of the quadratic system. (Chinese) Zbl 0495.34015 J. Hunan Univ. 8, No. 3, 77-81 (1981). MSC: 34C05 35S05 35A20 35R20 PDFBibTeX XMLCite \textit{N. Liu}, J. Hunan Univ. 8, No. 3, 77--81 (1981; Zbl 0495.34015)
Yu, Shuxiang A global behavior of continuous flows on 2-manifolds. (Chinese) Zbl 0494.58028 Acta Math. Sin. 24, 207-210 (1981). MSC: 37C10 37C70 34C40 34C05 PDFBibTeX XMLCite \textit{S. Yu}, Acta Math. Sin. 24, 207--210 (1981; Zbl 0494.58028)
Kresin, G. I.; Maz’ya, V. G. On the essential norm of an operator of the type of two-layer potential in the space \(C_ m\). (Russian) Zbl 0494.47030 Functional analysis and numerical mathematics, Collect. Artic., Alma-Ata 1981, 131-165 (1981). MSC: 47Gxx 31B25 47A30 PDFBibTeX XML
Qin, Yuanxun; Liu, Zunquan Mechanical deduction of formulas of differential equations. III. (English) Zbl 0493.34032 Kexue Tongbao, Foreign. Lang. Ed. 26, 385-389 (1981). MSC: 34C05 34A34 34-04 PDFBibTeX XMLCite \textit{Y. Qin} and \textit{Z. Liu}, Kexue Tongbao, Sci. Bull. 26, 385--389 (1981; Zbl 0493.34032)
Liu, Zunquan; Qin, Chaobin Mechanical deduction of formulas of differential equations. II. (English) Zbl 0493.34031 Kexue Tongbao, Foreign. Lang. Ed. 26, 779-780 (1981). MSC: 34C05 34A34 34C15 34-04 PDFBibTeX XMLCite \textit{Z. Liu} and \textit{C. Qin}, Kexue Tongbao, Sci. Bull. 26, 779--780 (1981; Zbl 0493.34031)
Atkinson, F. V. A class of limit-point criteria. (English) Zbl 0493.34026 Spectral theory of differential operators, Proc. Conf., Birmingham/ USA 1981, North-Holland Math. Stud. 55, 13-55 (1981). MSC: 34C05 34B20 PDFBibTeX XML
Chen, Yiyuan Qualitative theory of differential equations of the projective plane. (Chinese) Zbl 0492.58018 Chin. Ann. Math. 2, 102-116 (1981). MSC: 37G15 34C05 34C25 37C75 PDFBibTeX XMLCite \textit{Y. Chen}, Chin. Ann. Math. 2, 102--116 (1981; Zbl 0492.58018)
Kayumov, D. Kh.; Rozet, I. G.; Begiev, B. B. Presence of four limit cycles for a quadratic fractional differential equation. (Russian) Zbl 0492.34021 Dokl. Akad. Nauk Tadzh. SSR 24, 718-720 (1981). MSC: 34C05 PDFBibTeX XMLCite \textit{D. Kh. Kayumov} et al., Dokl. Akad. Nauk Tadzh. SSR 24, 718--720 (1981; Zbl 0492.34021)
Paklina, E. P.; Slitinskaya, S. K. On the rise of limit cycles in the Saltzman-Lorenz system. (Russian) Zbl 0492.34020 Izv. Sev.-Kavk. Nauchn. Tsentr. Vyssh. Shk., Estestv. Nauki 1981, No. 1(33), 30-32 (1981). MSC: 34C05 37G99 37G15 PDFBibTeX XMLCite \textit{E. P. Paklina} and \textit{S. K. Slitinskaya}, Izv. Sev.-Kavk. Nauchn. Tsentra Vyssh. Shk., Estestv. Nauki 1981, No. 1(33), 30--32 (1981; Zbl 0492.34020)
Seydel, R. Numerical computation of periodic orbits that bifurcate from stationary solutions of ordinary differential equations. (English) Zbl 0491.65049 Appl. Math. Comput. 9, 257-271 (1981). MSC: 65L15 65L50 34C25 34C05 34L99 PDFBibTeX XMLCite \textit{R. Seydel}, Appl. Math. Comput. 9, 257--271 (1981; Zbl 0491.65049) Full Text: DOI
Georgiev, Neko N. The investigation of a nonlinear third order differential system. (English) Zbl 0491.58026 PLISKA, Stud. Math. Bulg. 1981, No. 3, 67-74 (1981). MSC: 37G99 37C70 34C25 34C05 PDFBibTeX XMLCite \textit{N. N. Georgiev}, PLISKA, Stud. Math. Bulg. 3, 67--74 (1981; Zbl 0491.58026)
Lauffenburger, Douglas A.; Kennedy, Clinton R. Analysis of a lumped model for tissue inflammation dynamics. (English) Zbl 0489.92008 Math. Biosci. 53, 189-221 (1981). MSC: 92Cxx 34C05 92B05 PDFBibTeX XMLCite \textit{D. A. Lauffenburger} and \textit{C. R. Kennedy}, Math. Biosci. 53, 189--221 (1981; Zbl 0489.92008) Full Text: DOI
Ivanov, M. Ya.; Slobodkina, F. A. Analysis of steady solutions of invariant quasi-linear third order equations. (English. Russian original) Zbl 0489.76022 J. Appl. Math. Mech. 45, 94-100 (1982); translation from Prikl. Mat. Mekh. 45, 128-136 (1981). MSC: 76B15 76B25 34C05 35G25 76M99 PDFBibTeX XMLCite \textit{M. Ya. Ivanov} and \textit{F. A. Slobodkina}, J. Appl. Math. Mech. 45, 94--100 (1981; Zbl 0489.76022); translation from Prikl. Mat. Mekh. 45, 128--136 (1981) Full Text: DOI
Borevich, E. Z. Conditions of topological equivalence of two-dimensional Morse-Smale diffeomorphisms. (Russian) Zbl 0489.58017 Differ. Uravn. 17, 1481-1482 (1981). MSC: 37D15 34C05 PDFBibTeX XMLCite \textit{E. Z. Borevich}, Differ. Uravn. 17, 1481--1482 (1981; Zbl 0489.58017)
Kovalevskij, M. A. A construction of Stokes multipliers for an equation with two singular points. (Russian) Zbl 0489.34029 Vestn. Leningr. Univ. 1981, No. 7, Mat. Mekh. Astron. 1981, No. 2, 49-54 (1981). MSC: 34C05 34A30 PDFBibTeX XMLCite \textit{M. A. Kovalevskij}, Vestn. Leningr. Univ., Mat. Mekh. Astron. 1981, No. 2, 49--54 (1981; Zbl 0489.34029)
Michalikova, Elena A note on a certain nonlinear differential equation of the second order. (Slovak) Zbl 0489.34028 Pr. Stud. Vys. Sk. Dopravnej Ziline, Ser. Mat.-Fyz. 4, 53-55 (1981). MSC: 34C05 34A34 PDFBibTeX XMLCite \textit{E. Michalikova}, Pr. Stud. Vys. Sk. Dopravnej Ziline, Ser. Mat.-Fyz. 4, 53--55 (1981; Zbl 0489.34028)
Skar, Sherwin J.; Miller, Richard K.; Michel, Anthony N. On existence and nonexistence of limit cycles in interconnected systems. (English) Zbl 0488.93006 IEEE Trans. Autom. Control 26, 1153-1168 (1981). MSC: 93A15 37G15 34C05 PDFBibTeX XMLCite \textit{S. J. Skar} et al., IEEE Trans. Autom. Control 26, 1153--1168 (1981; Zbl 0488.93006) Full Text: DOI
Chan, S. H.; Albeirutty, M. H. B-splines collocation solution of combined conduction-radiation with phase change and moving boundary. (English) Zbl 0488.65075 Numerical methods in thermal problems, Proc. 2nd int. Conf., Venice/Italy 1981, 180-192 (1981). MSC: 65R20 65Z05 35K55 45K05 80A20 80A17 PDFBibTeX XML
Alymkulov, K. Solution of a perturbed differential equation with irregular and regular singular points. (Russian) Zbl 0488.34048 Izv. Akad. Nauk Kirg. SSR 1981, No. 4, 3-6 (1981). MSC: 34E10 34D10 34C05 PDFBibTeX XMLCite \textit{K. Alymkulov}, Izv. Akad. Nauk Kirg. SSR 1981, No. 4, 3--6 (1981; Zbl 0488.34048)
Abramov, A. A.; Balla, K.; Konyukhova, N. B. A replacement of boundary conditions of singular points for systems of ordinary differential equations. (Perenos granichnykh uslovij iz osobykh tochek dlya sistem obyknovennykh differentsial’nykh uravnenij). (Russian) Zbl 0488.34002 Soobshcheniya po Vychislitel’noĭ Matematike. Akademiya Nauk SSSR. Vychislitel’nyĭ Tsentr. Moskva: Vychislitel’nyj Tsentr AN SSSR. 64 p. R. 0.20 (1981). MSC: 34-02 34C05 34B99 34C45 34C30 PDFBibTeX XML
Morse, Marston Selected papers. Ed. by Raoul Bott. (English) Zbl 0487.58001 New York - Heidelberg - Berlin: Springer-Verlag (ISBN 3-540-90532-4/hbk; 978-1-4939-3415-7/pbk). XLVI, 882 p. (1981). MSC: 58-06 57-06 58E05 58E20 58E12 53C42 53A10 20C10 57R70 30C99 53-06 PDFBibTeX XMLCite \textit{M. Morse}, Selected papers. Ed. by Raoul Bott. New York - Heidelberg - Berlin: Springer-Verlag (1981; Zbl 0487.58001)
Saperstone, Stephen H. Semidynamical systems in infinite dimensional spaces. (English) Zbl 0487.34044 Applied Mathematical Sciences, Vol. 37, New York - Heidelberg -Berlin: Springer Verlag. VII, 474 p. DM 68.00; $ 31.70 (1981). MSC: 34-01 54H20 60H10 37C10 34D20 34C05 45D05 93C15 93C20 PDFBibTeX XML
Kirchgraber, U. Bifurcation of periodic orbits in coupled chemical reactors. I. (English) Zbl 0487.34042 Math. Methods Appl. Sci. 3, 301-311 (1981). MSC: 34C25 80A30 34C05 PDFBibTeX XMLCite \textit{U. Kirchgraber}, Math. Methods Appl. Sci. 3, 301--311 (1981; Zbl 0487.34042) Full Text: DOI
Cherkas, L. A. On the structure of the bifurcations of the analytic autonomous systems on the plane with a parameter rotating the field. (English) Zbl 0487.34040 Qualitative theory of differential equations, Vol. I, Szeged 1979, Colloq. Math. Soc. János Bolyai 30, 111-123 (1981). MSC: 34C25 34C05 PDFBibTeX XML
Graef, John R.; Spikes, Paul W. The limit point - limit circle problem for nonlinear equations. (English) Zbl 0487.34026 Spectral theory of differential operators, Proc. Conf., Birmingham/USA 1981, North-Holland Math. Stud. 55, 207-210 (1981). MSC: 34C05 34C15 34C11 34A34 PDFBibTeX XML
Moauro, Vinicio Bifurcation of closed orbits from a limit cycle in \(R^ 2\). (English) Zbl 0486.34025 Rend. Sem. Mat. Univ. Padova 65, 277-291 (1981). MSC: 34C25 34D05 34D10 34C05 PDFBibTeX XMLCite \textit{V. Moauro}, Rend. Semin. Mat. Univ. Padova 65, 277--291 (1981; Zbl 0486.34025) Full Text: Numdam EuDML
Wang, Lian; Wang, Mu-qiu On V. I. Arnold’s problem in the case n=2. (English) Zbl 0486.34011 Acta Math. Appl. Sin. 4, 126-139 (1981). MSC: 65J99 34C05 34D20 PDFBibTeX XMLCite \textit{L. Wang} and \textit{M.-q. Wang}, Acta Math. Appl. Sin. 4, 126--139 (1981; Zbl 0486.34011)
Redheffer, Ray; Zhiming, Zhou Global asymptotic stability for a class of many-variable Volterra prey- predator systems. (English) Zbl 0485.92015 Nonlinear Anal., Theory Methods Appl. 5, 1309-1329 (1981). MSC: 92D40 34C05 92D25 PDFBibTeX XMLCite \textit{R. Redheffer} and \textit{Z. Zhiming}, Nonlinear Anal., Theory Methods Appl. 5, 1309--1329 (1981; Zbl 0485.92015) Full Text: DOI
Benoit, Eric Equations différentielles: rélation entree-sortie. (French) Zbl 0485.34031 C. R. Acad. Sci., Paris, Sér. I 293, 293-296 (1981). MSC: 34C25 34C05 PDFBibTeX XMLCite \textit{E. Benoit}, C. R. Acad. Sci., Paris, Sér. I 293, 293--296 (1981; Zbl 0485.34031)
Samodurov, A. A. The center problem and integrating factor for the Lenard equation. (Russian) Zbl 0485.34030 Differ. Uravn. 17, 936-940 (1981). MSC: 34C25 34C05 34C15 PDFBibTeX XMLCite \textit{A. A. Samodurov}, Differ. Uravn. 17, 936--940 (1981; Zbl 0485.34030)
Benedek, Agnes I.; Panzone, Rafael On the structure of the set of eigenfunctions of certain irregular boundary problems. (English) Zbl 0485.34015 E. B. Christoffel: the influence of his work on mathematics and the physical sciences, int. Symp., Aachen 1979, 401-410 (1981). MSC: 34L99 34C05 PDFBibTeX XML
Anselone, P. M.; Ansorge, Rainer A unified framework for the discretization of nonlinear operator equations. (English) Zbl 0484.65036 Numer. Funct. Anal. Optimization 4, 61-99 (1981). MSC: 65J15 65R20 65L10 45G10 34B15 PDFBibTeX XMLCite \textit{P. M. Anselone} and \textit{R. Ansorge}, Numer. Funct. Anal. Optim. 4, 61--99 (1981; Zbl 0484.65036) Full Text: DOI
Benoit, Eric Tunnels et entonnoirs. (French) Zbl 0484.34040 C. R. Acad. Sci., Paris, Sér. I 292, 283-286 (1981). MSC: 34E15 34C05 PDFBibTeX XMLCite \textit{E. Benoit}, C. R. Acad. Sci., Paris, Sér. I 292, 283--286 (1981; Zbl 0484.34040)
Shestakov, A. A.; Merenkov, Yu. N. Localization of the limit set of solution with bounded interval of definition. (Russian) Zbl 0484.34018 Differ. Uravn. 17, 1515-1517 (1981). MSC: 34C05 34C10 34D20 PDFBibTeX XMLCite \textit{A. A. Shestakov} and \textit{Yu. N. Merenkov}, Differ. Uravn. 17, 1515--1517 (1981; Zbl 0484.34018)
Howard, Louis N. Chemical oscillations. (English) Zbl 0483.92020 Nonlinear phenomena in physics and biology, Proc. NATO Adv. Study Inst., Banff, Alberta/Can. 1980, NATO Adv. Study Inst. Ser. B, Phys., Vol. 75, 313-343 (1981). MSC: 92Exx 80A30 34C15 34C05 34C99 34D15 34D10 PDFBibTeX XML
Gopalsamy, K. Limit cycles in periodically perturbed population systems. (English) Zbl 0483.92016 Bull. Math. Biol. 43, 463-485 (1981). MSC: 92D40 92D25 34C05 34D10 PDFBibTeX XMLCite \textit{K. Gopalsamy}, Bull. Math. Biol. 43, 463--485 (1981; Zbl 0483.92016) Full Text: DOI
Brenner, A. V.; Shubin, M. A. Atiyah-Bott-Lefschetz theorem for manifolds with boundary. (Russian) Zbl 0483.58015 Funkts. Anal. Prilozh. 15, No. 4, 67-68 (1981). MSC: 58J20 58J10 58J40 35J60 35S05 PDFBibTeX XMLCite \textit{A. V. Brenner} and \textit{M. A. Shubin}, Funkts. Anal. Prilozh. 15, No. 4, 67--68 (1981; Zbl 0483.58015)
Skriganov, M. M. General properties of the spectrum of differential and pseudodifferential operators with periodic coefficients and some problems of the geometry of numbers. (English. Russian original) Zbl 0483.35059 Sov. Math., Dokl. 23; 45-49 (1981); translation from Dokl. Akad. Nauk SSSR 256, 47-51 (1981). MSC: 35P05 35J30 35B20 47F05 47Gxx 11H06 PDFBibTeX XML
Mustafokulov, R. On the theory of periodic solutions of systems of differential equations with retarded argument. (Russian) Zbl 0483.34049 Dokl. Akad. Nauk Tadzh. SSR 24, 94-98 (1981). MSC: 34K99 34C25 PDFBibTeX XMLCite \textit{R. Mustafokulov}, Dokl. Akad. Nauk Tadzh. SSR 24, 94--98 (1981; Zbl 0483.34049)
Mira, Christian Singularites non classiques d’une recurrence, et d’une équation différentielle d’ordre 2. (French) Zbl 0483.34022 C. R. Acad. Sci., Paris, Sér. I 292, 147-151 (1981). MSC: 34C05 26B99 26E05 34A99 PDFBibTeX XMLCite \textit{C. Mira}, C. R. Acad. Sci., Paris, Sér. I 292, 147--151 (1981; Zbl 0483.34022)
Lascar, Richard Propagation des singularites des solutions d’équations pseudo- différentielles à caractéristiques de multiplicités variables. (French) Zbl 0482.58031 Lecture Notes in Mathematics. 856. Berlin-Heidelberg-New York: Springer-Verlag. VIII, 237 p. DM 25.00; $ 11.90 (1981). MSC: 58J47 58J32 58J45 35S10 35S15 PDFBibTeX XML
Gilbert, Richard C. Singular linear ordinary differential equations with non-zero second auxiliary polynomial. (English) Zbl 0482.34048 Spectral theory of differential operators, Proc. Conf., Birmingham/USA 1981, North-Holland Math. Stud. 55, 193-198 (1981). MSC: 34E05 34C05 34M99 34L99 47B25 34A30 PDFBibTeX XML
Renardy, Michael Bifurcation of singular and transient solutions. Spatially nonperiodic patterns for chemical reaction models in infinitely extended domains. (English) Zbl 0482.34036 Recent contributions to nonlinear partial differential equations, Lect. Paris 1978/79, Res. Notes Math. 50, 172-216 (1981). MSC: 34C25 34C05 PDFBibTeX XML