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Semilinear elliptic equations with strong singularity

  • TAN Yuxin ,
  • SUN Yijing
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  • School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

Received date: 2016-09-07

  Revised date: 2016-12-19

  Online published: 2017-11-15

Supported by

Supported by the National Nature Science Foundation of China (11571339)

Abstract

We prove the existence of a positive H01-solution for the equation-div(M(x) ▽u)=(f(x))/(up), where M(x) is a bounded elliptic matrix (i. e., there exists 0< αβ such that M(x)ξ·ξα|ξ|2,|M(x)|≤ β,∀x ∈ Ω,∀ξRn), and-p <-1. The key to the work lies in establishing the validity and connection of two constraints which simplify the existence of a minimizer for the corresponding singular functional.

Cite this article

TAN Yuxin , SUN Yijing . Semilinear elliptic equations with strong singularity[J]. Journal of University of Chinese Academy of Sciences, 2017 , 34(6) : 660 -666 . DOI: 10.7523/j.issn.2095-6134.2017.06.002

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