CONCENTRATION PHENOMENA FOR A FOURTH-ORDER EQUATION ON Rn

被引:4
|
作者
Ben Ayed, Mohamed [1 ]
Selmi, Abdelbaki [2 ]
机构
[1] Fac Sci Sfax, Dept Math, Sfax, Tunisia
[2] Fac Sci Bizerte, Dept Math, Zarzouna 7021, Bizerte, Tunisia
关键词
sign-changing solution; critical Sobolev exponent; biharmonic operator; CRITICAL SOBOLEV EXPONENT; NONLINEAR ELLIPTIC EQUATION; CRITICAL-POINTS; EXISTENCE; INFINITY;
D O I
10.2140/pjm.2009.242.1
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We consider the problem Delta(2)u = K(y)vertical bar u vertical bar(8/(n-4))u in R-n with u, Delta u -> 0 as vertical bar y vertical bar -> infinity, where K is a bounded and continuous function on R-n, n >= 5. Our aim is to construct infinitely many solutions which concentrate around k points, k >= 2, under some appropriate conditions on K. Moreover we prove that there is no solution which concentrates at one point.
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页码:1 / 32
页数:32
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