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  • Research Article
  • Open Access

Self-similar singular solution of doubly singular parabolic equation with gradient absorption term

Journal of Inequalities and Applications20062006:20438

  • Received: 6 February 2004
  • Accepted: 8 January 2005
  • Published:


We deal with the self-similar singular solution of doubly singular parabolic equation with a gradient absorption term for , and in . By shooting and phase plane methods, we prove that when there exists self-similar singular solution, while there is no any self-similar singular solution. In case of existence, the self-similar singular solution is the self-similar very singular solutions which have compact support. Moreover, the interface relation is obtained.


  • Gradient Absorption
  • Parabolic Equation
  • Compact Support
  • Phase Plane
  • Plane Method

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Authors’ Affiliations

Department of Mathematics, Southeast University, Nanjing, 210096, China
Department of Mathematics, Xuzhou Normal University, Xuzhou, 221116, China


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© Shi and Wang 2006

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