A Morse lemma at infinity for nonlinear elliptic fractional equations
Rendiconti del Seminario Matematico della Università di Padova, Tome 146 (2021), pp. 1-42.
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In this paper, we consider the nonlinear fractional critical equation with zero Dirichlet boundary condition A s u=Ku n+2s n-2s , u>0 in Ω and u=0 on Ω, where K is a positive function, Ω is a regular bounded domain of n , n2 and A s , s(0,1) represents the spectral fractional Laplacian operator (-Δ) s in Ω with zero Dirichlet boundary condition. We prove a version of Morse lemmas at infinity for this problem. We also exhibit a relevant application of our novel result. More precisely, we characterize the critical points at infinity of the associated variational problem and we prove an existence result for s=1 2 and n=3.

Publié le :
DOI : 10.4171/rsmup/82
Classification : 35, 58
@article{RSMUP_2021__146__1_0,
     author = {Wael Abdelhedi and Hichem Hajaiej and Zeinab Mhamdi},
     title = {A {Morse} lemma at infinity for nonlinear elliptic fractional equations},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {1--42},
     volume = {146},
     year = {2021},
     doi = {10.4171/rsmup/82},
     mrnumber = {4349650},
     zbl = {1484.35211},
     language = {en},
     url = {http://www.numdam.org/articles/10.4171/rsmup/82/}
}
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Wael Abdelhedi; Hichem Hajaiej; Zeinab Mhamdi. A Morse lemma at infinity for nonlinear elliptic fractional equations. Rendiconti del Seminario Matematico della Università di Padova, Tome 146 (2021), pp. 1-42. doi : 10.4171/rsmup/82. http://www.numdam.org/articles/10.4171/rsmup/82/

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