In this article,we study the following critical problem involving the fractional Laplacian:{(-△)α/2u-γu/|x|α=λ|u|q-2/|x|s+|u|2*α(t)-2u/|x|t in Ω,u=0 in (
This article is committed to deal with measure of non-compactness of operators in Banach spaces.Firstly,the collection C(X) (consisting of all nonempty closed b