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Displaying 81 – 100 of 126

Existence of noncontinuable solutions.

Bartušek, Miroslav (2007)

Electronic Journal of Differential Equations (EJDE) [electronic only]

Existence of one-signed solutions of nonlinear four-point boundary value problems

Ruyun Ma, Ruipeng Chen (2012)

Czechoslovak Mathematical Journal

In this paper, we are concerned with the existence of one-signed solutions of four-point boundary value problems $- u^{''} + M u = r g (t) f (u), u (0) = u (ε), u (1) = u (1 - ε)$ and $u^{''} + M u = r g (t) f (u), u (0) = u (ε), u (1) = u (1 - ε),$ where $ε \in (0, 1 / 2)$ , $M \in (0, \infty)$ is a constant and $r > 0$ is a parameter, $g \in C ([0, 1], (0, + \infty))$ , $f \in C (ℝ, ℝ)$ with $s f (s) > 0$ for $s \neq 0$ . The proof of the main results is based upon bifurcation techniques.

Existence of oscillatory and nonoscillatory solutions for a class of neutral functional differential equations

Y. Kitamura, Takaŝi Kusano, Bikkar S. Lalli (1995)

Mathematica Bohemica

For a certain class of functional differential equations with perturbations conditions are given such that there exist solutions which converge to solutions of the equations without perturbation.

Existence of oscillatory solutions for functional differential equations of neutral type.

Jaroš, J., Kusano, T. (1991)

Acta Mathematica Universitatis Comenianae. New Series

Existence of periodic orbits for vector fields via Fuller index and the averaging method.

Benevieri, Pierluigi, Gavioli, Andrea, Villarini, Massimo (2004)

Electronic Journal of Differential Equations (EJDE) [electronic only]

Existence of periodic solution for a nonlinear fractional differential equation.

Belmekki, Mohammed, Nieto, Juan J., Rodríguez-López, Rosana (2009)

Boundary Value Problems [electronic only]

Existence of periodic solution for first order nonlinear neutral delay equations.

Wang, Genqiang, Yan, Jurang (2001)

Journal of Applied Mathematics and Stochastic Analysis

Existence of periodic solution for perturbed generalized Liénard equations.

Boussaada, Islam, Chouikha, A.Raouf (2006)

Electronic Journal of Differential Equations (EJDE) [electronic only]

Existence of periodic solutions and homoclinic orbits for third-order nonlinear differential equations.

Motlagh, O. Rabiei, Afsharnezhad, Z. (2003)

International Journal of Mathematics and Mathematical Sciences

Existence of periodic solutions for a class of nonlinear evolution equations.

Radu Cascaval, Ioan I. Vrabie (1994)

Revista Matemática de la Universidad Complutense de Madrid

Existence of periodic solutions for a semilinear ordinary differential equation.

Girg, Petr (1998)

Electronic Journal of Differential Equations (EJDE) [electronic only]

Existence of periodic solutions for Liénard-type p-Laplacian systems with variable coefficients

Wenbin Liu, Jiaying Liu, Huixing Zhang, Zhigang Hu, Yanqiang Wu (2013)

Annales Polonici Mathematici

We study the existence of periodic solutions for Liénard-type p-Laplacian systems with variable coefficients by means of the topological degree theory. We present sufficient conditions for the existence of periodic solutions, improving some known results.

Existence of periodic solutions for nonlinear Liénard systems.

Kim, Wan Se (1995)

International Journal of Mathematics and Mathematical Sciences

Existence of periodic solutions for $p$ -Laplacian equations on time scales.

Cao, Fengjuan, Han, Zhenlai, Sun, Shurong (2010)

Advances in Difference Equations [electronic only]

Existence of periodic solutions of impulsive differential systems.

Erbe, L.H., Liu, Xinzhi (1991)

Journal of Applied Mathematics and Stochastic Analysis

Existence of positive periodic solutions of an SEIR model with periodic coefficients

Tailei Zhang, Junli Liu, Zhidong Teng (2012)

Applications of Mathematics

An SEIR model with periodic coefficients in epidemiology is considered. The global existence of periodic solutions with strictly positive components for this model is established by using the method of coincidence degree. Furthermore, a sufficient condition for the global stability of this model is obtained. An example based on the transmission of respiratory syncytial virus (RSV) is included.

Existence of positive solutions of fourth-order problems with integral boundary conditions.

Ma, Ruyun, Chen, Tianlan (2011)

Boundary Value Problems [electronic only]

Existence of positive solutions of $n$ -dimensional system of nonlinear differential equations entering into a singular point

Josef Diblík, Miroslava Růžičková (2000)

Archivum Mathematicum

Existence of positive solutions of nonlinear second-order periodic boundary value problems.

Ma, Ruyun, Gao, Chenghua, Chen, Ruipeng (2010)

Boundary Value Problems [electronic only]

Existence of positive solutions to vector boundary value problems. II.

Ilja Martišovitš (1999)

Mathematica Slovaca

Currently displaying 81 – 100 of 126

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