Results 21 to 30 of about 75,181 (273)

Semilinear problems with bounded nonlinear term

open access: yesBoundary Value Problems, 2005
We solve boundary value problems for elliptic semilinear equations in which no asymptotic behavior is prescribed for the nonlinear term.
Martin Schechter
doaj   +2 more sources

A remark on partial data inverse problems for semilinear elliptic equations [PDF]

open access: yesProceedings of the American Mathematical Society, 2019
We show that the knowledge of the Dirichlet-to-Neumann map on an arbitrary open portion of the boundary of a domain in $\mathbb{R}^n$, $n\ge 2$, for a class of semilinear elliptic equations, determines the nonlinearity uniquely.
Katya Krupchyk, G. Uhlmann
semanticscholar   +1 more source

Multiple solutions for a semilinear elliptic equation [PDF]

open access: yesTransactions of the American Mathematical Society, 1995
Let Ω \Omega be a bounded, smooth domain in R N {\mathbb {R}^N} , N ⩾ 1 N \geqslant 1 . We consider the problem of finding nontrivial solutions to the elliptic boundary value problem \[
Patricio Felmer, Manuel del Pino
openaire   +3 more sources

Partial data inverse problems and simultaneous recovery of boundary and coefficients for semilinear elliptic equations [PDF]

open access: yesRevista matemática iberoamericana, 2019
We study various partial data inverse boundary value problems for the semilinear elliptic equation $\Delta u+ a(x,u)=0$ in a domain in $\mathbb R^n$ by using the higher order linearization technique introduced in [LLS 19, FO19].
M. Lassas   +3 more
semanticscholar   +1 more source

Infinitely many sign-changing solutions for a semilinear elliptic equation with variable exponent

open access: yesAIMS Mathematics, 2021
This paper is devoted to study a class of semilinear elliptic equations with variable exponent. By means of perturbation technique, variational methods and a priori estimation, the existence of infinitely many sign-changing solutions to this class of ...
Changmu Chu, Yuxia Xiao , Yanling Xie
doaj   +1 more source

A Concentration Phenomenon for Semilinear Elliptic Equations [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2012
For a domain $ \subset\dR^N$ we consider the equation $ - u + V(x)u = Q_n(x)\abs{u}^{p-2}u$ with zero Dirichlet boundary conditions and $p\in(2,2^*)$. Here $V\ge 0$ and $Q_n$ are bounded functions that are positive in a region contained in $ $ and negative outside, and such that the sets $\{Q_n>0\}$ shrink to a point $x_0\in $ as $n\to\infty ...
Andrzej Szulkin, Nils Ackermann
openaire   +3 more sources

Partial data inverse problems for semilinear elliptic equations with gradient nonlinearities [PDF]

open access: yesMathematical Research Letters, 2019
We show that the linear span of the set of scalar products of gradients of harmonic functions on a bounded smooth domain $\Omega\subset \mathbb{R}^n$ which vanish on a closed proper subset of the boundary is dense in $L^1(\Omega)$.
Katya Krupchyk, G. Uhlmann
semanticscholar   +1 more source

Estimations of a differential operator in spectral parameter problems for elliptic equations with discontinuous nonlinearities

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2010
The basic boundary value problems for semilinear equations of elliptic type with a spectral parameter and discontinuous nonlinearity are considered in a bounded domain with a sufficiently smooth boundary.
Dmitrij К Potapov
doaj   +3 more sources

Classification and Liouville-type theorems for semilinear elliptic equations in unbounded domains [PDF]

open access: yesAnalysis & PDE, 2019
We classify stable and finite Morse index solutions to general semilinear elliptic equations posed in Euclidean space of dimension at most 10, or in some unbounded domains.
L. Dupaigne, A. Farina
semanticscholar   +1 more source

On Singular Semilinear Elliptic Equations [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Home - About - Disclaimer - Privacy