New conditions on ground state solutions for Hamiltonian elliptic systems with gradient terms

Authors

  • D. D. Qin School of Mathematics and Statistics Central South University Changsha‎, ‎410083‎, ‎Hunan‎, ‎P.R‎. ‎China
  • F‎. ‎F‎. ‎ Liao‎ School of Mathematics and Statistics Central South University Changsha‎, ‎410083‎, ‎Hunan \newline Department of Mathematics‎, ‎Xiangnan University‎, ‎Chenzhou‎, ‎423000‎, ‎Hunan‎, ‎P.R‎. ‎China
  • X‎. ‎H‎. ‎ Tang School of Mathematics and Statistics Central South University Changsha‎, ‎410083‎, ‎Hunan‎, ‎P.R‎. ‎China
Abstract:

This paper is concerned with the following elliptic system:$$ left{ begin{array}{ll} -triangle u + b(x)nabla u + V(x)u=g(x, v), -triangle v - b(x)nabla v + V(x)v=f(x, u), end{array} right. $$ for $x in {R}^{N}$, where $V $, $b$ and $W$ are 1-periodic in $x$, and $f(x,t)$, $g(x,t)$ are super-quadratic. In this paper, we give a new technique to show the boundedness of Cerami sequences and establish the existence of ground state solutions with mild assumptions on $f$ and $g$.

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Journal title

volume 41  issue 5

pages  1131- 1146

publication date 2015-10-01

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