Topological arguments for an elliptic equation involving the fractional Laplacian

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作者
Mohammed Ali Al-Ghamdi
Wael Abdelhedi
Hichem Chtioui
机构
[1] King Abdulaziz University,Department of Mathematics
[2] Sfax University,Department of Mathematics, Faculty of Sciences of Sfax
关键词
fractional Laplacian; critical exponent; critical points at infinity; Nirenberg problem;
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摘要
In this paper, we consider a fractional Nirenberg-type problem involving σ-exponent of the Laplacian on the standard n-dimensional spheres Sn. Using an algebraic topological method and the theory of the critical points at infinity, we provide a variety of classes of functions that can be realized as the σ-curvature on n-dimensional sphere.
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