Positive ground state of coupled systems of Schrödinger equations in R2 involving critical exponential growth

2017 ◽  
Vol 40 (18) ◽  
pp. 6864-6879 ◽  
Author(s):  
João Marcos do Ó ◽  
José Carlos de Albuquerque
Keyword(s):  
Ground State ◽  
Exponential Growth ◽  
Coupled Systems ◽  
Schrodinger Equations ◽  
Schrödinger Equations ◽  
Critical Exponential Growth

SEMI-CLASSICAL STATES FOR QUASILINEAR SCHRÖDINGER EQUATIONS ARISING IN PLASMA PHYSICS

2009 ◽  
Vol 11 (04) ◽  
pp. 547-583 ◽  
Author(s):  
JOÃO MARCOS DO Ó ◽  
ABBAS MOAMENI ◽  
UBERLANDIO SEVERO
Keyword(s):  
Plasma Physics ◽  
Ground State ◽  
Dimensional Space ◽  
Schrodinger Equations ◽  
Schrödinger Equations ◽  
Qualitative Properties ◽  
Ground State Solutions ◽  
Critical Exponential Growth ◽  
Penalization Technique ◽  
Physical Phenomena

In this paper, the existence and qualitative properties of positive ground state solutions for the following class of Schrödinger equations -ε2Δu + V(x)u - ε2[Δ(u2)]u = f(u) in the whole two-dimensional space are established. We develop a variational method based on a penalization technique and Trudinger–Moser inequality, in a nonstandard Orlicz space context, to build up a one parameter family of classical ground state solutions which concentrates, as the parameter approaches zero, around some point at which the solutions will be localized. The main feature of this paper is that the nonlinearity f is allowed to enjoy the critical exponential growth and also the presence of the second order nonhomogeneous term -ε2[Δ(u2)]u which prevents us from working in a classical Sobolev space. Our analysis shows the importance of the role played by the parameter ε for which is motivated by mathematical models in physics. Schrödinger equations of this type have been studied as models of several physical phenomena. The nonlinearity here corresponds to the superfluid film equation in plasma physics.

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