Results 21 to 30 of about 4,547,829 (284)

On existence of optimal controls in coecients for ill-posed nonlinear elliptic Dirichlet boundary value problems with anisotropic p-Laplacian

Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2016
We study a Dirichlet optimal control problem for a nonlinear elliptic anisotropic p-Laplace equation with control and state constraints. The matrix-valued coecients we take as controls and in the linear part of dierential operator we consider coecients ...
O. P. Kupenko
doaj   +1 more source

(3,6) GWhD(v)—existence results

Discrete Mathematics, 2003
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Abel, R.J.R., Finizio, Norman J., Greig, Malcolm   +2 more
openaire   +1 more source

О регулярности слабых решений одного класса начально-краевых задач с псевдо-дифференциальными операторами

Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2017
В роботе исследуется проблема разрешимости и вопросы регулярности слабых решений одного класса начально-краевых задач, возникающих при изучении динамики кардио-артериальных систем.
P. I. Kogut, Yu. A. Maksimenkova
doaj   +1 more source

An Existence Result for the Mean Field Equation on Compact Surfaces in a Doubly Supercritical Regime [PDF]

, 2013
We consider a class of variational equations with exponential nonlinearities on a compact Riemannian surface, describing the mean field equation of the equilibrium turbulance with arbitrarily signed vortices.
Jevnikar, Aleks
core   +2 more sources

Existence Results for Noncoercive Variational Problems

SIAM Journal on Control and Optimization, 1996
The aim of this paper is to give an existence result for a class of one-dimensional, non-convex, non-coercive problems in the Calculus of Variations. The main tools for the proof are an existence theorem in the convex case and the closure of the convex hull of the epigraph of functions strictly convex at infinity.
CRASTA, Graziano, MALUSA, ANNALISA
openaire   +4 more sources

A Note on Korn’s Inequality in an N-Dimensional Context and a Global Existence Result for a Non-Linear Plate Model

AppliedMath, 2023
In the first part of this article, we present a new proof for Korn’s inequality in an n-dimensional context. The results are based on standard tools of real and functional analysis.
Fabio Silva Botelho
doaj   +1 more source

Existence Result and Uniqueness for Some Fractional Problem

Mathematics, 2019
In this article, by the use of the lower and upper solutions method, we prove the existence of a positive solution for a Riemann−Liouville fractional boundary value problem. Furthermore, the uniqueness of the positive solution is given.
Guotao Wang, Abdeljabbar Ghanmi, Samah Horrigue, Samar Madian   +3 more
doaj   +1 more source

Singularly perturbed degenerated parabolic equations and application to seabed morphodynamics in tided environment [PDF]

, 2010
In this paper we build models for short-term, mean-term and long-term dynamics of dune and megariple morphodynamics. They are models that are degenerated parabolic equations which are, moreover, singularly perturbed.
Faye, Ibrahima, Frenod, Emmanuel, Seck, Diaraf   +2 more
core   +6 more sources

Uniqueness and Existence Results

, 2022
AbstractIn this chapter, we establish Theorems 10.1007/978-3-030-95088-0_1#FPar4 and 10.1007/978-3-030-95088-0_1#FPar5 and show that, under the assumptions of these theorems, the sequence $$n\mapsto f^p_n[g]$$ n ↦ f
Jean-Luc Marichal, Naïm Zenaïdi
openaire   +1 more source

Existence results for superlinear semipositone BVP’s [PDF]

Proceedings of the American Mathematical Society, 1996
The authors consider the existence of a positive solution to the Sturm-Liouville boundary value problem \((p(t)\cdot u')'+\lambda\cdot f(t,u)=0 ...
Anuradha, V., Hai, D. D., Shivaji, R.
openaire   +2 more sources