Results 111 to 120 of about 22,884,854 (275)

On the Fucik spectrum for elliptic systems

open access: yes, 2006
We propose an extension of the concept of Fucik spectrum to the case of coupled systems of two elliptic equations, we study its structure and some applications. We show that near a simple eigenvalue of the system, the Fucik spectrum consists (after a suitable reparametrization) of two (maybe coincident) 2-dimensional surfaces.
E. Massa, B.Ruf
openaire   +2 more sources

Multiple nonsemitrivial solutions for quasilinear elliptic systems [PDF]

open access: bronze, 2003
Pavel Drábek   +2 more
openalex   +1 more source

Radial solutions for inhomogeneous biharmonic elliptic systems

open access: yesElectronic Journal of Differential Equations, 2018
In this article we obtain weak radial solutions for the inhomogeneous elliptic system \displaylines{ \Delta^2u+V_{1}(| x| )| u|^{q-2}u=Q(| x| )F_{u}(u,v)\quad\text{in } \mathbb{R}^N, \cr \Delta^2v+V_2(| x| )| v|^{q-2}v=Q(| x| )F_{v}(u,v)\quad\text ...
Reginaldo Demarque   +1 more
doaj  

A survey of elliptic curves for proof systems

open access: yesDesigns, Codes and Cryptography, 2022
Diego F. Aranha   +2 more
semanticscholar   +1 more source

Nonlinear eigenvalue problems with semipositone structure

open access: yesElectronic Journal of Differential Equations, 2000
In this paper we summarize the developments of semipositone problems to date, including very recent results on semipositone systems. We also discuss applications and open problems.
Alfonso Castro, C. Maya, R. Shivaji
doaj  

De Giorgi type results for elliptic systems [PDF]

open access: green, 2012
Mostafa Fazly, Nassif Ghoussoub
openalex   +1 more source

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