Results 11 to 20 of about 96,434 (313)

A third-order nonlocal problem with nonlocal conditions [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We study an equation with dominated lower-order terms and nonlocal conditions. Using the Riesz representation theorem and the Schauder fixed-point theorem, we prove the existence and uniqueness of a generalized solution.
Lazhar Bougoffa
doaj   +2 more sources

Existence of the solution to a nonlocal-in-time evolutional problem [PDF]

open access: yesNonlinear Analysis, 2014
This work is devoted to the study of a nonlocal-in-time evolutional problem for the first order differential equation in Banach space. Our primary approach, although stems from the convenient technique based on the reduction of a nonlocal problem to its ...
Volodymyr Makarov   +2 more
doaj   +4 more sources

A nonlocal two phase Stefan problem [PDF]

open access: yesDifferential and Integral Equations, 2013
We study a nonlocal version of the two-phase Stefan problem, which models a phase transition problem between two distinct phases evolving to distinct heat equations.
Chasseigne, Emmanuel   +1 more
core   +9 more sources

The Nonlocal Almgren Problem

open access: yesMathematics
In the nonlocal Almgren problem, the goal is to investigate the convexity of a minimizer under a mass constraint via a nonlocal free energy generated with a nonlocal perimeter and convex potential.
Emanuel Indrei
doaj   +3 more sources

Nonlocal $p$-Laplacian evolution problems on graphs [PDF]

open access: greenSIAM Journal on Numerical Analysis, 2016
In this paper we study numerical approximations of the evolution problem for the nonlocal $p$-Laplacian with homogeneous Neumann boundary conditions. First, we derive a bound on the distance between two continuous-in-time trajectories defined by two different evolution systems (i.e. with different kernels and initial data).
Yosra Hafiene   +2 more
openalex   +8 more sources

STATIONARY PROBLEMS WITH NONLOCAL BOUNDARY CONDITIONS

open access: diamondMathematical Modelling and Analysis, 2001
In this article a stationary problems with general nonlocal boundary conditions is considered. The differential problems and finite difference schemes for solving this problem are investigated. Stability estimates are proved in the maximum norm and the non‐negativity of the solution is investigated.
Raimondas Čiegis   +3 more
openalex   +6 more sources

On the Schrödinger-parabolic equation with multipoint nonlocal boundary condition [PDF]

open access: yesE-Journal of Analysis and Applied Mathematics, 2023
The nonlocal boundary value problem for a Schrödinger-parabolic equation with multipoint nonlocal boundary conditions is examined. Stability estimates for the solution of this problem are established.
Yıldırım Özdemir
doaj   +1 more source

A problem with nonlocal conditions for a one-dimensional parabolic equation [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2022
In present paper, we consider a problem with nonlocal conditions for parabolic equation and show that there exists a unique weak solution in Sobolev space.
Alexander B. Beylin   +2 more
doaj   +1 more source

A non-local problem with integral conditions of the first kind for the string vibration equation

open access: yesВестник Самарского университета: Естественнонаучная серия, 2023
The article considers a problem with integral nonlocal conditions of the first kind. The main goal is to prove the unique solvability of a nonlocal problem with integral conditions of the 1st kind, if the kernels of these conditions depend not only on ...
Y. S. Buntova
doaj   +1 more source

Nonlocal Thermodynamics: Mathematical Model of Two-Dimensional Thermal Conductivity [PDF]

open access: yesE3S Web of Conferences, 2021
Nonlocal models of thermodynamics are becoming more and more popular in the modern world. Such models make it possible to describe materials with a complex structure and unique strength and temperature properties.
Kuvyrkin George   +2 more
doaj   +1 more source

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