Results 41 to 50 of about 92,595 (298)

Analysis of control problems of nonmontone semilinear elliptic equations [PDF]

open access: yes, 2019
In this paper we study optimal control problems governed by a semilinear elliptic equation. The equation is nonmonotone due to the presence of a convection term, despite the monotonocity of the nonlinear term.
E. Casas, M. Mateos, A. Rösch
semanticscholar   +1 more source

A Deep Neural Network Algorithm for Semilinear Elliptic PDEs with Applications in Insurance Mathematics

open access: yesRisks, 2020
In insurance mathematics, optimal control problems over an infinite time horizon arise when computing risk measures. An example of such a risk measure is the expected discounted future dividend payments.
Stefan Kremsner   +2 more
doaj   +1 more source

AN EXISTENCE AND UNIQUENESS OF THE SOLUTION OF SEMILINEAR MONOTONE ELLIPTIC EQUATION WITH THE DATA IN STUMMEL CLASSES

open access: yesBarekeng, 2023
Let  be a bounded open subset of , ,  be a function in Stummel classes , where , and be a semilinear monotone elliptic equation, where  is  symmetric matrix, elliptic, bounded, and  is non decreasing and Lipschitz. By proving a weighted estimation for
Nicky Kurnia Tumalun
doaj   +1 more source

Weak solutions of semilinear elliptic equations with Leray-Hardy potentials and measure data [PDF]

open access: yesMathematics in Engineering, 2019
We study existence and stability of solutions of (E 1) −∆u + µ |x| 2 u + g(u) = ν in Ω, u = 0 on ∂Ω, where Ω is a bounded, smooth domain of R N , N ≥ 2, containing the origin, µ ≥ − (N −2) 2 4 is a constant, g is a nondecreasing function satisfying some ...
L. Véron, Huyuan Chen
semanticscholar   +1 more source

Semilinear elliptic equations and supercritical growth

open access: yesJournal of Differential Equations, 1987
\textit{H. Brezis} and \textit{L. Nirenberg} have proved the existence of positive solutions of the problem \(\Delta \tilde u+\lambda \tilde u+\tilde u^ p=0\) in \(\Omega\) and \(\tilde u=0\) on \(\partial \Omega\) for \(p\leq p_ c=(n+2)/(n-2)\), when the embedding of \(H^ 1_ 0(\Omega)\) in \(L^{p+1}(\Omega)\) is continuous [Commun. Pure Appl. Math. 36,
Budd, C, Norbury, J
openaire   +1 more source

Positive Solutions for Elliptic Problems with the Nonlinearity Containing Singularity and Hardy-Sobolev Exponents

open access: yesJournal of Function Spaces, 2020
In this paper, we study multiplicity of positive solutions for a class of semilinear elliptic equations with the nonlinearity containing singularity and Hardy-Sobolev exponents.
Yong-Yi Lan, Xian Hu, Bi-Yun Tang
doaj   +1 more source

On a Class of Semilinear Elliptic Equations in R

open access: yesJournal of Differential Equations, 2002
AbstractWe establish that for n⩾3 and p>1, the elliptic equation Δu+K(x)up=0 in Rn possesses separated positive entire solutions of infinite multiplicity, provided that a locally Hölder continuous function K⩾0 in Rn\{0}, satisfies K(x)=O(∣x∣σ) at x=0 for some σ>−2, and K(x)=c∣x∣−2+O(∣x∣−n[log∣x∣]q) near ∞ for some constants c>0 and q>0.
Bae, Soohyun, Chang, Tong Keun
openaire   +1 more source

Semilinear elliptic equations with Hardy potential and gradient nonlinearity [PDF]

open access: yesRevista matemática iberoamericana, 2019
Let $\Omega \subset {\mathbb R}^N$ ($N \geq 3$) be a $C^2$ bounded domain and $\delta$ be the distance to $\partial \Omega$. We study positive solutions of equation (E) $-L_\mu u+ g(|\nabla u|) = 0$ in $\Omega$ where $L_\mu=\Delta + \frac{\mu}{\delta^2} $
K. Gkikas, P. Nguyen
semanticscholar   +1 more source

Uniqueness of radial solutions of semilinear elliptic equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1992
E. Yanagida recently proved that the classical Matukuma equation with a given exponent has only one finite mass solution. We show how similar ideas can be exploited to obtain uniqueness results for other classes of equations as well as Matukuma equations with more general coefficients. One particular example covered is Δ u +
Kwong, Man Kam, Li, Yi
openaire   +2 more sources

On a class of semilinear elliptic problems near critical growth

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1998
We use Minimax Methods and explore compact embedddings in the context of Orlicz and Orlicz-Sobolev spaces to get existence of weak solutions on a class of semilinear elliptic equations with nonlinearities near critical growth. We consider both biharmonic
J. V. Goncalves, S. Meira
doaj   +1 more source

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