Results 131 to 140 of about 376,175 (295)

Harnack inequality for non-divergence structure semi-linear elliptic equations

open access: yesAdvances in Nonlinear Analysis, 2018
In this paper we establish a Harnack inequality for non-negative solutions of L⁢u=f⁢(u){Lu=f(u)} where L is a non-divergence structure uniformly elliptic operator and f is a non-decreasing function that satisfies an appropriate growth conditions at ...
Mohammed Ahmed, Porru Giovanni
doaj   +1 more source

Almgren-type monotonicity methods for the classification of behavior at corners of solutions to semilinear elliptic equations [PDF]

open access: yesarXiv, 2011
A monotonicity approach to the study of the asymptotic behavior near corners of solutions to semilinear elliptic equations in domains with a conical boundary point is discussed. The presence of logarithms in the first term of the asymptotic expansion is excluded for boundary profiles sufficiently close to straight conical surfaces.
arxiv  

Dimension of the set of positive solutions to nonlinear equations and applications

open access: yesElectronic Journal of Differential Equations, 2016
We study the covering dimension of the set of (positive) solutions to various classes of nonlinear equations involving condensing and A-proper maps. It is based on the nontriviality of the fixed point index of a certain condensing map or on oddness ...
Petronije S. Milojevic
doaj  

Structure Results for Semilinear Elliptic Equations with Hardy Potentials

open access: yesAdvanced Nonlinear Studies, 2018
We prove structure results for the radial solutions of the semilinear ...
Franca Matteo, Garrione Maurizio
doaj   +1 more source

Semilinear elliptic equations for the fractional Laplacian with Hardy potential [PDF]

open access: yesarXiv, 2011
In this paper we study existence and nonexistence of nonnegative distributional solutions for a class of semilinear fractional elliptic equations involving the Hardy potential.
arxiv  

Nonexistence of solutions to KPP-type equations of dimension greater than or equal to one

open access: yesElectronic Journal of Differential Equations, 2006
In this article, we consider a semilinear elliptic equations of the form $Delta u+f(u)=0$, where $f$ is a concave function. We prove for arbitrary dimensions that there is no solution bounded in $(0,1)$.
Janos Englander, Peter L. Simon
doaj  

Solving Fredholm Integral Equations Using Deep Learning. [PDF]

open access: yesInt J Appl Comput Math, 2022
Guan Y, Fang T, Zhang D, Jin C.
europepmc   +1 more source

Mixed Boundary Value Problems of Semilinear Elliptic PDEs and BSDEs with Singular Coefficients [PDF]

open access: yesarXiv, 2011
In this paper, we prove that there exists a unique weak solution to the mixed boundary value problem for a general class of semilinear second order elliptic partial differential equations with singular coefficients. Our approach is probabilistic. The theory of Dirichlet forms and backward stochastic differential equations with singular coefficients and
arxiv  

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