Results 11 to 20 of about 428,778 (188)

Partial Differential Equations and Function Spaces [PDF]

open access: yesJournal of Function Spaces, 2016
It is well known that PDEs and the theory of function spaces have played a central role in the mathematical analysis of problems arising from mathematical physics, biology, and other branches of modern applied sciences. This special issue addresses the current advances in these two broad areas; in particular it focuses on the connections and ...
Shijun Zheng   +3 more
openaire   +4 more sources

Variational Principles for Two Compound Nonlinear Equations ‎with Variable Coefficients [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
It is very important to seek explicit variational principles for nonlinear partial differential equations, which are theoretical bases for many methods to solve or analyze the nonlinear phenomena and problems.
Xiao-Qun Cao   +4 more
doaj   +1 more source

Existence and uniqueness of a solution to a partial integro-differential equation by the method of lines

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2008
In this work we consider a partial integro-differential equation. We reformulate it a functional integro-differential equation in a suitable Hilbert space. We apply the method of lines to establish the existence and uniqueness of a strong solution.
Dhirendra Bahuguna, J. Dabas
doaj   +1 more source

Local existence and blowing up phenomena for a class of non-autonomous partial functional differential equations with infinite delay

open access: yesNonautonomous Dynamical Systems, 2022
In this work, we study a class of abstract non-autonomous partial functional differential equations with infinite delay. Our main results concern the local existence of the mild solution which can blow up at the finite time.
Diop Mamadou Abdoul   +2 more
doaj   +1 more source

Path Integral Solution of Linear Second Order Partial Differential Equations I. The General Construction [PDF]

open access: yes, 2004
A path integral is presented that solves a general class of linear second order partial differential equations with Dirichlet/Neumann boundary conditions. Elementary kernels are constructed for both Dirichlet and Neumann boundary conditions.
Abraham   +16 more
core   +2 more sources

Inverse problem for a Fredholm third order partial integro-differential equation

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2014
The solvability of various problems for partial differential equations of the third order is researched in many papers. But, partial Fredholm integro-differential equations of the third order are studied comparatively less. Integro-differential equations
Tursun K Yuldashev
doaj   +1 more source

RG flows of Quantum Einstein Gravity on maximally symmetric spaces [PDF]

open access: yes, 2014
We use the Wetterich-equation to study the renormalization group flow of $f(R)$-gravity in a three-dimensional, conformally reduced setting. Building on the exact heat kernel for maximally symmetric spaces, we obtain a partial differential equation which
Demmel, Maximilian   +2 more
core   +2 more sources

Nonlinear optics problem with transformation of a spatial variable and an oblique derivative

open access: yesСовременная математика: Фундаментальные направления, 2023
In this paper, we consider a functional differential equation of parabolic type on a strip with a transformation of a spatial variable and boundary conditions with an oblique derivative.
A. A. Kornuta, V. A. Lukianenko
doaj   +1 more source

A Computational Model for q-Bernstein Quasi-Minimal Bézier Surface

open access: yesJournal of Mathematics, 2022
A computational model is presented to find the q-Bernstein quasi-minimal Bézier surfaces as the extremal of Dirichlet functional, and the Bézier surfaces are used quite frequently in the literature of computer science for computer graphics and the ...
Daud Ahmad   +5 more
doaj   +1 more source

Invariant manifolds of partial functional differential equations

open access: yesJournal of Differential Equations, 2004
The authors give a proof for the existence and attractivity of center-unstable, center and stable manifolds for general evolutionary processes using the method of graph transforms. They indicate that their results can be applied to a large class of equations generating evolutionary processes that may not be strongly continuous.
Van Minh, Nguyen, Wu, Jianhong
openaire   +1 more source

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