Results 11 to 20 of about 102 (89)

A class of functionals possessing multiple global minima [PDF]

open access: yes, 2022
We get a new multiplicity result for gradient systems. Here is a very particular corollary: Let Ω ⊂ Rn (n ≥ 2) be a smooth bounded domain and let Φ : R2 → R be a C1 function, with Φ(0, 0) = 0, such that... Mathematics Subject Classification (2010): 35J47,
RICCERI, Biagio
core   +2 more sources

Nonautonomous fractional Hamiltonian system with critical exponential growth [PDF]

open access: yes, 2019
International audienceIn this paper, we study the following nonlocal nonautonomous Hamiltonian system on whole R (−∆) 1 2 u + u = Q(x)g(v) in R, (−∆) 1 2 v + v = P (x)f (u) in R, where (−∆) 1 2 is the square root Laplacian operator.
Marcos, João   +2 more
core   +2 more sources

A Caccioppoli-type estimate for very weak solutions to obstacle problems with weight [PDF]

open access: yes, 2011
This paper gives a Caccioppoli-type estimate for very weak solutions to obstacle problems of the A -harmonic equation div A ( x , ∇ u ) = 0 with | A ( x , ξ ) | ≈ w ( x ) | ξ | p - 1 , where 1 < p < ...
Gao Hongya   +3 more
core   +2 more sources

Concentration behavior of semiclassical solutions for Hamiltonian elliptic system

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper, we study the following nonlinear Hamiltonian elliptic system with gradient ...
Zhang Jian   +3 more
doaj   +1 more source

Ground states of Schrödinger systems with the Chern-Simons gauge fields

open access: yesAdvanced Nonlinear Studies, 2023
We are concerned with the following coupled nonlinear Schrödinger system: −Δu+u+∫∣x∣∞h(s)su2(s)ds+h2(∣x∣)∣x∣2u=∣u∣2p−2u+b∣v∣p∣u∣p−2u,x∈R2,−Δv+ωv+∫∣x∣∞g(s)sv2(s)ds+g2(∣x∣)∣x∣2v=∣v∣2p−2v+b∣u∣p∣v∣p−2v,x∈R2,\left\{\begin{array}{l}-\Delta u+u+\left(\underset{|
Jiang Yahui   +4 more
doaj   +1 more source

Fourth order elliptic system with dirichlet boundary condition [PDF]

open access: yes, 2011
We investigate the multiplicity of the solutions of the fourth order elliptic system with Dirichlet boundary condition. We get two theorems. One theorem is that the fourth order elliptic system has at least two nontrivial solutions when λ k < c &
Tacksun Jung   +3 more
core   +1 more source

Stability of solitary-wave solutions of coupled NLS equations with power-type nonlinearities

open access: yesAdvances in Nonlinear Analysis, 2015
This paper proves existence and stability of solitary-wave solutions of a system of 2-coupled nonlinear Schrödinger equations with power-type nonlinearities arising in several models of modern physics. The existence of vector solitary-wave solutions (i.e.
Bhattarai Santosh
doaj   +1 more source

Multiple positive solutions for quasilinear elliptic problems with sign‐changing nonlinearities

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 12, Page 1047-1055, 2004., 2004
Using variational arguments, we prove some nonexistence and multiplicity results for positive solutions of a system of p‐Laplace equations of gradient form. Then we study a p‐Laplace‐type problem with nonlinear boundary conditions.
Julián Fernández Bonder
wiley   +1 more source

A note on the variational structure of an elliptic system involving critical Sobolev exponent

open access: yesJournal of Applied Mathematics, Volume 2003, Issue 5, Page 227-241, 2003., 2003
We consider an elliptic system involving critical growth conditions. We develop a technique of variational methods for elliptic systems. Using the well‐known results of maximum principle for systems developed by Fleckinger et al. (1995), we can find positive solutions.
Mario Zuluaga
wiley   +1 more source

Quasilinear elliptic systems of resonant type and nonlinear eigenvalue problems

open access: yesAbstract and Applied Analysis, Volume 7, Issue 3, Page 155-167, 2002., 2002
This work is devoted to the study of a quasilinear elliptic system of resonant type. We prove the existence of infinitely many solutions of a related nonlinear eigenvalue problem. Applying an abstract minimax theorem, we obtain a solution of the quasilinear system −Δpu = Fu(x, u, v), − Δqv = F v(x, u, v), under conditions involving the first and the ...
Pablo L. de Nàpoli, M. Cristina Mariani
wiley   +1 more source

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