Acta mathematica scientia,Series A ›› 2023, Vol. 43 ›› Issue (5): 1391-1396.

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Global Bifurcation for the Yamabe Equation on the Unit Sphere

Dai Guowei1,*(),Gao Siyu1,Ma Ruyun2   

  1. 1School of Mathematical Sciences, Dalian University of Technology, Liaoning Dalian 116024
    2School of Mathematical and Statistics, Xidian University, Xi'an 710071
  • Received:2022-08-14 Revised:2023-03-23 Online:2023-10-26 Published:2023-08-09
  • Contact: Guowei Dai E-mail:daiguowei@dlut.edu.cn
  • Supported by:
    NSFC(11871129)

Abstract:

We study the Yamabe equation on the N-dimensional unit sphere SN

ΔSNv+λv=vN+2N2.

By bifurcation technique, for each k1, we prove that this equation has at least one non-constant solution vk for any λ>λk:=(k+N1)(N2)/4 such that vkλ1/(N1) has exactly k zeroes, all of them are in (1,1) and are simple, where N is the sobolev critical exponent. As application, we obtain the existence of non-radial solutions of a nonlinear elliptic equation on RN with n4. Moreover, we also obtain the global bifurcation results of the Yamabe problem in product manifolds with one of the manifold is the unit sphere.

Key words: Bifurcation, Yamabe equation, Non-radial solutions

CLC Number: 

  • O177.91
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