该文研究了一类特殊的半线性四阶椭圆问题.当非线性项在正无穷远处是超线性而在负无穷远处是渐近线性情形,使用极小极大方法建立非平凡解的存在性结果.
A class of particular fourth-order semilinear elliptic problem is studied. When the nonlin- ear term is superlinear at the positive infinity but asymptotically linear at the negative infinity, the existence of nontrivial solutions is obtained by using minimax methods.