Nontrivial Solution of Semilinear Elliptic Equations with Critical Exponent in R
Nontrivial Solution of Semilinear Elliptic Equations with Critical Exponent in R
复制标题
DOI:
10.1080/03605309208820848
复制
发表时间:
1992
影响因子:
1.9
通讯作者:
D. Cao
中科院分区:
文献类型:
--
作者:
D. Cao
It is well-known that the embedding of H1 (R2) into Lp (W2)(2 5 p<+ co) and of the set V={u E H,'(n), Jn IVuI2 dx< 1) into Orlicz space Lv (a) where d (t)= e4nt2-1 is not compact and consequently we can not hope functional to satisfy the (PS)(Palais-Smale) condition in W if we apply variational method. In this paper, with the help of concentration-compactness principle put forward by PL Lions [6],[7], we show that I (u) satisfies (PS), condition for all c E (0, J)(for the definition of J, see section 3). Then, we obtain the existence of nontrivial solution for (1.1) by using Mountain Pass lemma in H. Brezis and L. Nirenberg (31 to construct a critical point 1 (u) with a critical value in (0, J).