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arXiv 2006.01633math.AP
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具有不定位势和一般反应的非线性非齐次Robin问题

Nonlinear, nonhomogeneous Robin problems with indefinite potential and general reaction

Nikolaos S. Papageorgiou, Vicenţiu D. Rădulescu, Dušan D. Repovš

摘要:

考虑由非齐次微分算子和不定位势驱动的非线性椭圆方程。对于反作用项,我们只施加接近于零的条件。使用变分方法,连同截断和扰动技术和临界群,我们产生了三个非平凡的解决方案与符号信息。在半线性的情况下,我们改进了这一结果,获得第二个节点的解决方案,共四个非平凡的解决方案。最后,在反应项的对称条件下,我们生成了一个完整的序列的不同的节点解。

英文摘要:

We consider a nonlinear elliptic equation driven by a nonhomogeneous differential operator plus an indefinite potential. On the reaction term we impose conditions only near zero. Using variational methods, together with truncation and perturbation techniques and critical groups, we produce three nontrivial solutions with sign information. In the semilinear case we improve this result by obtaining a second nodal solution for a total of four nontrivial solutions. Finally, under a symmetry condition on the reaction term, we generate a whole sequence of distinct nodal solutions.

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