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Displaying 201 – 220 of 780

Existence of periodic solutions for a class of even order differential equations with deviating argument.

Guo, Chengjun, O'Regan, D., Xu, Yuantong, Agarwal, R.P. (2009)

Electronic Journal of Qualitative Theory of Differential Equations [electronic only]

Existence of periodic solutions for neutral nonlinear differential equations with variable delay.

Hafsia, Deham, Ahcéne, Djoudi (2010)

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

Existence of Periodic Solutions for Nonlinear Neutral Dynamic Equations with Functional Delay on a Time Scale

Abdelouaheb Ardjouni, Ahcène Djoudi (2013)

Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica

Let $𝕋$ be a periodic time scale. The purpose of this paper is to use a modification of Krasnoselskii’s fixed point theorem due to Burton to prove the existence of periodic solutions on time scale of the nonlinear dynamic equation with variable delay $x^{▵} (t) = - a (t) h (x^{σ} (t)) + c (t) x^{\tilde{▵}} (t - r (t)) + G (t, x (t), x (t - r (t)))$ , $t \in 𝕋$ , where $f^{▵}$ is the $▵$ -derivative on $𝕋$ and $f^{\tilde{▵}}$ is the $▵$ -derivative on $(i d - r) (𝕋)$ . We invert the given equation to obtain an equivalent integral equation from which we define a fixed point mapping written as a sum of a large contraction and a compact map. We show...

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 for second order delay differential equations with impulses.

Pan, Lijun (2011)

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

Existence of periodic solutions in totally nonlinear delay dynamic equations.

Adivar, M., Raffoul, Y. (2009)

Electronic Journal of Qualitative Theory of Differential Equations [electronic only]

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.

This paper investigates the existence of positive solutions for a fourth-order differential system using a fixed point theorem of cone expansion and compression type.

Existence of positive solutions for a fourth-order multi-point beam problem on measure chains.

Anderson, Douglas R., Minhós, Feliz (2009)

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

Existence of positive solutions for boundary value problems of fractional functional differential equations.

Bai, Chuanzhi (2010)

Electronic Journal of Qualitative Theory of Differential Equations [electronic only]

Existence of positive solutions for boundary value problems of nonlinear functional difference equation with $p$ -Laplacian operator.

Yang, S.J., Shi, B., Zhang, D.C. (2007)

Boundary Value Problems [electronic only]

Existence of positive solutions for boundary-value problems with integral boundary conditions and sign changing nonlinearities.

Liu, Shu, Jia, Mei, Tian, Yingqiang (2010)

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

Currently displaying 201 – 220 of 780

Previous Page 11 Next

Displaying 201 – 220 of 780

Existence of periodic solutions for a class of even order differential equations with deviating argument.

Existence of periodic solutions for neutral nonlinear differential equations with variable delay.

Existence of Periodic Solutions for Nonlinear Neutral Dynamic Equations with Functional Delay on a Time Scale

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

Existence of periodic solutions for second order delay differential equations with impulses.

Existence of periodic solutions in totally nonlinear delay dynamic equations.

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

Existence of positive solution for semipositone second-order three-point boundary-value problem.

Existence of positive solutions for a class of higher-order $m$ -point boundary value problems.

Existence of positive solutions for a class of $m$ -point boundary value problems.

Existence of positive solutions for a fourth-order differential system

Existence of positive solutions for a fourth-order multi-point beam problem on measure chains.

Existence of positive solutions for boundary value problems of fractional functional differential equations.

Existence of positive solutions for boundary value problems of nonlinear functional difference equation with $p$ -Laplacian operator.

Existence of positive solutions for boundary-value problems with integral boundary conditions and sign changing nonlinearities.

Existence of positive solutions for $m$ -point boundary value problems on time scales.

Existence of positive solutions for multi-point boundary value problems.

Existence of positive solutions for multipoint boundary value problem with $p$ -Laplacian on time scales.

Existence of positive solutions for nonlocal fourth-order boundary value problem with variable parameter.

Existence of positive solutions for nth-order boundary value problem with sign changing nonlinearity.

Currently displaying 201 – 220 of 780