Poster Session
 Multiple positive solutions for semilinear elliptic problems involving two critical Hardy-Sobolev exponents and a concave term
 Tsing-San Hsu Chang Gung UniversityTaiwan Co-Author(s):    Huei-Li Lin
 Abstract: In this paper, we study a semilinear elliptic equation, which involves doubly critical Hardy-Sobolev exponents, a Hardy-type term and a concave term. By means of variational methods, the multiplicity of positive solutions to the problem is obtained.