Acta mathematica scientia,Series B ›› 2018, Vol. 38 ›› Issue (4): 1121-1142.doi: 10.1016/S0252-9602(18)30803-8

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A NOTE ON THE UNIQUENESS AND THE NON-DEGENERACY OF POSITIVE RADIAL SOLUTIONS FOR SEMILINEAR ELLIPTIC PROBLEMS AND ITS APPLICATION

Shinji ADACHI1, Masataka SHIBATA2, Tatsuya WATANABE3   

  1. 1. Department of Mathematical and Systems Engineering, Faculty of Engineering, Shizuoka University, 3-5-1 Johoku, Naka-ku, Hamamatsu 432-8561, Japan;
    2. Department of Mathematics, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro-ku, Tokyo 152-8551, Japan;
    3. Department of Mathematics, Faculty of Science, Kyoto Sangyo University, Motoyama, Kamigamo, Kita-ku, Kyoto 603-8555, Japan
  • Received:2017-02-10 Revised:2018-05-01 Online:2018-08-25 Published:2018-08-25
  • Contact: Shinji ADACHI,E-mail:adachi@shizuoka.ac.jp E-mail:adachi@shizuoka.ac.jp
  • Supported by:

    The third author is supported by JSPS Grant-in-Aid for Scientific Research (C) (15K04970).

Abstract:

In this paper, we are concerned with the uniqueness and the non-degeneracy of positive radial solutions for a class of semilinear elliptic equations. Using detailed ODE analysis, we extend previous results to cases where nonlinear terms may have sublinear growth. As an application, we obtain the uniqueness and the non-degeneracy of ground states for modified Schrödinger equations.

Key words: positive radial solution, uniqueness, non-degeneracy, shooting method

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