Results 11 to 20 of about 269,773 (341)

Iterative methods for the darboux problem for partial functional differential equations

open access: yesJournal of Inequalities and Applications, 1999
We consider the Darboux problem for the hyperbolic partial functional differential equations where is a function defined by . If then using the method of functional differential inequalities we prove, under suitable conditions, a theorem on the ...
Człapiński Tomasz
doaj   +2 more sources

Equivariant Hopf Bifurcation in a Class of Partial Functional Differential Equations on a Circular Domain [PDF]

open access: yesInternational Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 2023
Circular domains frequently appear in mathematical modeling in the fields of ecology, biology and chemistry. In this paper, we investigate the equivariant Hopf bifurcation of partial functional differential equations with Neumann boundary condition on a ...
Yaqi Chen, Xianyi Zeng, Ben Niu
semanticscholar   +1 more source

Critical cases in neutral functional differential equations, arising from hydraulic engineering [PDF]

open access: yesOpuscula Mathematica, 2022
This paper starts from several applications described by initial/boundary value problems for \(1D\) (time and one space variable) hyperbolic partial differential equations whose basic properties and stability of equilibria are studied throughout the same
Vladimir Răsvan
doaj   +1 more source

Pseudospectral method for semilinear partial functional differential equations [PDF]

open access: yesOpuscula Mathematica, 2010
We present a convergence result for two spectral methods applied to an initial boundary value problem with functional dependence of Volterra type. Explicit condition of Courant-Friedrichs-Levy type is assumed on time step \(\tau \) and the number \(N ...
Wojciech Czernous
doaj   +1 more source

Periodic solutions of partial functional differential equations [PDF]

open access: yesProceedings of the American Mathematical Society, Series B, 2021
In this paper we study the existence of periodic solutions to the partial functional differential equation {
Su, Qiuyi, Ruan, Shigui
openaire   +2 more sources

Method of functional parametrization for solving a semi-periodic initial problem for fourth-order partial differential equations

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
A semi-periodic initial boundary-value problem for a fourth-order system of partial differential equations is considered. Using the method of functional parametrization, an additional parameter is carried out and the studied problem is reduced to the ...
A.T. Assanova, Zh.S. Tokmurzin
doaj   +1 more source

Method of lines for parabolic stochastic functional partial differential equations [PDF]

open access: yesOpuscula Mathematica, 2014
We approximate parabolic stochastic functional differential equations substituting the derivatives in the space variable by finite differences. We prove the stability of the method of lines corresponding to a parabolic SPDE driven by Brownian motion.
Maria Ziemlańska
doaj   +1 more source

Stability results for the functional differential equations associated to water hammer in hydraulics

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
There is considered a system of two sets of partial differential equations describing the water hammer in a hydroelectric power plant containing the dynamics of the tunnel, turbine penstock, surge tank and hydraulic turbine.
Vladimir Rasvan
doaj   +1 more source

Home - About - Disclaimer - Privacy