Results 261 to 270 of about 3,476 (289)

On a Nonlocal BVP with Nonlinear Boundary Conditions

Results in Mathematics, 2012
The author considers the existence of a positive solution to a boundary value problem where one of the boundary conditions is allowed to be nonlocal and nonlinear, namely \[ \begin{gathered} u''(t)+f(t,u(t))=0,\;t \in (0,1),\\ u(0) =H_{1}(\varphi (u))+\int_E H_{2}(s,u(s))\,ds,\;u(1) =0.\\ \end{gathered} \] Here, \(E\) is a measurable subset of \((0,1)\)
openaire   +1 more source

ON A PROBLEM WITH NONLOCAL BOUNDARY CONDITION FOR A PARABOLIC EQUATION

Mathematics of the USSR-Sbornik, 1993
The following initial-boundary value problem is considered in a rectangle \(Q_ T=\{(t,x ...
Muravej, L. A., Filinovskij, A. V.
openaire   +2 more sources

Gellerstedt Problem with a Nonlocal Parity Boundary Condition

Lobachevskii Journal of Mathematics, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

A Problem for a Pseudohyperbolic Equation with Nonlocal Boundary Condition

Journal of Mathematical Sciences, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

On Fractional Differential Inclusions with Nonlocal Boundary Conditions

Fractional Calculus and Applied Analysis, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Castaing, Charles, Godet-Thobie, C., Phung, Phan, Truong, Le   +3 more
openaire   +3 more sources

ELLIPTIC PROBLEMS WITH NONLOCAL CONDITIONS NEAR THE BOUNDARY

Mathematics of the USSR-Sbornik, 1987
Let \(\Omega \subset R^ 2\) be a bounded domain with boundary \(\partial \Omega =(\cup^{N}_{i=1}\Gamma_ i)\cup K\) where \(\Gamma_ i\) is smooth, K is finite, and in a neigbourhood of points of K \(\partial \Omega\) is angular. Let \(\omega_{is}: \gamma_ i\to \Omega\) be nonsingular smooth maps where \(\gamma_ i\) is a neighbourhood of \(\Gamma_ i ...
openaire   +1 more source

Problem with nonlocal condition on the free boundary

Ukrainian Mathematical Journal, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Takhirov, Zh. O., Turaev, R. N.
openaire   +1 more source

Electrical Conductivity Reconstruction Using Nonlocal Boundary Conditions

SIAM Journal on Applied Mathematics, 1999
Summary: We study existence, uniqueness, and solution estimates to the mixed problem \(\nabla\cdot\sigma\nabla u=0\) with Dirichlet to Neumann map boundary conditions and Neumann boundary conditions. We then show how this can be used in the reconstruction of \(\sigma\), given the relationship between u and its normal derivative on the boundary portion ...
openaire   +2 more sources

Differential operators with nonlocal boundary conditions

Differential Equations, 2000
Inverse problems of spectral analysis are studied for boundary value problems generated by the Sturm-Liouville differential operator \[ \ell y:=y''+q(x)y, \quad ...
openaire   +2 more sources

Differential equations with nonlocal boundary conditions

Nonlinear Analysis: Theory, Methods & Applications, 2001
openaire   +1 more source