考虑了R^4中一类含临界位势和不定权的非线性双调和问题,在次临界增长的条件下,证明了临界位势中的最佳指数,并利用一个最佳的Hardy不等式和第一特征值的性质,证明了非平凡解的存在性.
This paper deals with a class of nonlinear biharmonic problem with critical potential and indefinite potential in R4. In the investigation, the exponent in critical potential is proved optimal, and the existence of the nontrivial solution is proved by using an optimal Hardy inequality and the character of the first eigenvalue.