The Blow-up Rate Estimates for a System of Heat Equations with Nonlinear Boundary Conditions

نویسندگان

  • Maan A. Rasheed
  • Miroslav Chlebik
چکیده

This paper deals with the blow-up properties of positive solutions to a system of two heat equations ut = ∆u, vt = ∆v in BR× (0, T ) with Neumann boundary conditions ∂u ∂η = e vp , ∂v ∂η = e uq on ∂BR × (0, T ), where p, q > 1, BR is a ball in Rn, η is the outward normal. The upper bounds of blow-up rate estimates were obtained. It is also proved that the blow-up occurs only on the boundary.

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تاریخ انتشار 2012