Results 121 to 130 of about 1,290,485 (220)

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

A Second look at the first result of Landesman-Lazer type

open access: yesElectronic Journal of Differential Equations, 2000
We discuss some results concerning periodic and almot periodic solutions of ordinary differential equations which are precursors of a result on weak solutions of a semilinear elliptic boundary due to E. M. Landesman and the author. It is observed that in
Alan C. Lazer
doaj  

Bifurcations for semilinear elliptic equations with convex nonlinearity

open access: yesElectronic Journal of Differential Equations, 1999
We investigate the exact number of positive solutions of the semilinear Dirichlet boundary value problem $Delta u+f(u) = 0$ on a ball in ${mathbb R}^n$ where $f$ is a strictly convex $C^2$ function on $[0,infty)$. For the one-dimensional case we classify
J. Karatson, Peter L. Simon
doaj  

Dirac-harmonic maps with potential. [PDF]

open access: yesLett Math Phys, 2022
Branding V.
europepmc   +1 more source

On a semilinear elliptic equation in ℍn

open access: yes, 2008
We prove existence/nonexistence and uniqueness of positive entire solutions for some semilinear elliptic equations on the Hyperbolic ...
Sandeep, K., Mancini, G.
core   +1 more source

Uniqueness of Positive Solutions of Semilinear Elliptic Equations

open access: yesJournal of Differential Equations, 1995
The uniqueness of positive solutions of the problem \[ \Delta u+ f(u)= 0, \quad u>0,\;x\in B_ R, \qquad u|_{\partial B_ R}=0, \] where \(f(u)\geq 0\), \(B_ R\) is a ball with radius \(R\) in \(\mathbb{R}^ n\), \(n>2\), is studied. The following nonlinearities \(f\) are considered: \(f(u)= u^ p+ u^ q\) and the more general case \(f(u)= \sum_{i=1}^ k a_ ...
openaire   +2 more sources

Semilinear elliptic equations with dependence on the gradient

open access: yesElectronic Journal of Differential Equations, 2012
In this article we consider elliptic equations whose nonlinear term depends on the gradient of the unknown. We assume that the nonlinearity has a asymptotically linear growth at zero and at infinity with respect to the second variable.
Guanggang Liu, Shaoyun Shi, Yucheng Wei
doaj  

Operator compression with deep neural networks. [PDF]

open access: yesAdv Contin Discret Model, 2022
Kröpfl F, Maier R, Peterseim D.
europepmc   +1 more source

Semilinear pseudo-differential equations and travelling waves

open access: yes, 2007
We consider semilinear perturbations of the SG-elliptic pseudodifferential equations. We prove for them a theorem on the regularity of the solutions in the functional frame of the Gelfand-Shilov classes.
CAPPIELLO, Marco, Rodino L., Gramchev T.
core  

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