Results 11 to 20 of about 53 (51)
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 64, Page 4057-4070, 2003., 2003 A delayed three‐species periodic food‐chain system with Holling type‐II functional response is investigated. By using Gaines and Mawhin′s continuation theorem of coincidence degree theory, a set of easily verifiable sufficient conditions is derived for the existence of positive periodic solutions to the system.
Qiming Liu, Rui Xu
wiley +1 more source
Open Mathematics, 2016 The paper deals with the existence of positive ω-periodic solutions for a class of nonlinear delay differential equations. For example, such equations represent the model for the survival of red blood cells in an animal. The sufficient conditions for the
Dorociaková Božena, Olach Rudolf
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Periodic solutions of periodic generalized food limited model
International Journal of Mathematics and Mathematical Sciences, Volume 25, Issue 4, Page 265-271, 2001., 2001 By using the continuation theorem of coincidence degree theory, the existence of positive periodic solutions for a periodic generalized food limited model with state dependent delays and distributed delays is studied, respectively.
Yongkun Li
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On existence of periodic solutions of the Rayleigh equation of retarded type
International Journal of Mathematics and Mathematical Sciences, Volume 23, Issue 1, Page 65-68, 2000., 2000 In this paper, we give two sufficient conditions on the existence of periodic solutions of the non‐autonomous Rayleigh equation of retarded type by using the coincidence degree theory.
Genqiang Wang, Jurang Yan
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Branches of Forced Oscillations Induced by a Delayed Periodic Force
Advanced Nonlinear Studies, 2019 We study global continuation properties of the set of T-periodic solutions of parameterized second order delay differential equations with constant time lag on smooth manifolds. We apply our results to get multiplicity of T-periodic solutions.
Calamai Alessandro +2 more
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, 2002 Abstract and Applied Analysis, Volume 7, Issue 5, Page 279-286, 2002.
Guang Zhang, Sui Sun Cheng
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Advances in Nonlinear Analysis, 2014 In this article we study the existence of positive periodic solutions for a fourth-order nonlinear neutral differential equation with variable delay.
Ardjouni Abdelouaheb +2 more
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Generating a 9.2 Mb deletion and reciprocal tandem duplication between the Hspa13 and App loci.
, 2015 (A) The 9.2 Mb targeted region defined by the Hspa13 and App genes as shown from a capture derived from the UCSC genome browser (http://genome.ucsc.edu/).
Caroline Romestaing (226485) +14 more
core +1 more source
Slowly oscillating solutions of a Van der Pol oscillator with state-dependent delay
Open MathematicsIn this paper, we consider a Van der Pol oscillator with state-dependent delay. First, we seek a suitable set E on which we construct a Poincaré operator F. Then, we prove that the operator F is continuous and compact on E \ {0}.
Hou Aiyu, Liu Shunlian, Luo Chaoliang
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The dynamical analysis of a nonlocal predator–prey model with cannibalism
European Journal of Applied MathematicsCannibalism is often an extreme interaction in the animal species to quell competition for limited resources. To model this critical factor, we improve the predator–prey model with nonlocal competition effect by incorporating the cannibalism term, and ...
Daifeng Duan +3 more
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