English

New Quantitative Deformation Lemma and New Mountain Pass Theorem

Functional Analysis 2014-08-22 v2 Analysis of PDEs

Abstract

In this paper, we obtain a new quantitative deformation Lemma so that we can obtain more critical points, especially for supinf critical value c1c_1, x=φ1(c1)x=\varphi^{-1}(c_1) is a new critical point. For infmaxinfmax critical value c2c_2, we can obtain two new critical points x=0x = 0 (valley point) and x=ex = e(peak point) ,comparing with Willem's variant of the mountain pass theorem of Ambrosetti-Rabinowitz,in which φ(e)φ(0)<c2\varphi(e)\leq\varphi(0)<c_2, but in our new mountain pass theorem, φ(e)=c2 \varphi(e)=c_2.

Cite

@article{arxiv.1402.4602,
  title  = {New Quantitative Deformation Lemma and New Mountain Pass Theorem},
  author = {Liang Ding and Fode Zhang and Shiqing Zhang},
  journal= {arXiv preprint arXiv:1402.4602},
  year   = {2014}
}
R2 v1 2026-06-22T03:11:21.201Z