Multiplicity and concentration of solutions for fourthorder elliptic equations w

具有混合非线性项的四阶椭圆方程解的多重性与集中性，张文，唐先华，本文研究了如下一类四阶椭圆方程:$$left{egin{array}{ll}Delta^{2}u-Deltau+lambdaV(x)u=f(x,u)+muxi(x)|u|^{p-2}u,xin{R}^{N},\uinH^{2}({R}^{N}