%0 Journal Article
%T Singular elliptic systems involving concave terms and critical Caffarelli-Kohn-Nirenberg exponents
%A Mohammed E. O. El Mokhtar
%J Electronic Journal of Differential Equations
%D 2012
%I Texas State University
%X In this article, we establish the existence of at least four solutions to a singular system with a concave term, a critical Caffarelli-Kohn-Nirenberg exponent, and sign-changing weight functions. Our main tools are the Nehari manifold and the mountain pass theorem.
%K Singular elliptic system
%K concave term
%K mountain pass theorem
%K critical Caffarelli-Kohn-Nirenberg exponent
%K Nehari manifold
%K sign-changing weight function
%U http://ejde.math.txstate.edu/Volumes/2012/39/abstr.html