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The blow-up properties of solutions to semilinear heat equations with nonlinear boundary conditions

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This paper deals with the blow-up properties of solutions to semilinear heat equation \(u_t-u_{xx}=u^p \text{ in }(0,1)\times(0,T)\) with the nonlinear boundary conditions \(u_x(0,t)=0,u_x(1,t)=u^q\text{ on }[0,T)\). The necessary and sufficient conditions for the solution to have a finite time blow-up and the exact blow-up rates are established. It is also proved that the blow-up will occur only at the boundary x = 1.

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Received: November 1, 1997; revised: April 1, 1998

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Lin, Z., Wang, M. The blow-up properties of solutions to semilinear heat equations with nonlinear boundary conditions. Z. angew. Math. Phys. 50, 361–374 (1999). https://doi.org/10.1007/s000330050023

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  • DOI: https://doi.org/10.1007/s000330050023

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