Acta mathematica scientia,Series B ›› 2017, Vol. 37 ›› Issue (3): 836-851.doi: 10.1016/S0252-9602(17)30040-1

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NONEXISTENCE AND SYMMETRY OF SOLUTIONS TO SOME FRACTIONAL LAPLACIAN EQUATIONS IN THE UPPER HALF SPACE

Yanyan GUO   

  1. Department of Applied Mathematics, Northwestern Polytechnical University, Xi'an 710129, China
  • Received:2016-04-29 Online:2017-06-25 Published:2017-06-25
  • Supported by:

    This work is supported by the Fundamental Research Founds for the Central Universities (3102015ZY069) and the Natural Science Basic Research Plan in Shaanxi Province of China (2016M1008).

Abstract:

In this article, we consider the fractional Laplacian equation
where 0 < α < 2, R+n:={x=(x1, x2,…, xn)|xn > 0}. When K is strictly decreasing with respect to|x'|, the symmetry of positive solutions is proved, where x'=(x1, x2, …, xn-1) ∈ Rn-1. When K is strictly increasing with respect to xn or only depend on xn, the nonexistence of positive solutions is obtained.

Key words: Fractional Laplacian, method of moving planes, radial symmetry, nonexistence

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