Blow-up Rate Estimate for Degenerate Parabolic Equation With Nonlinear Gradient Term

ZHANG Zheng-ce; WANG Biao

doi:10.3879/j.issn.1000-0887.2010.06.013

Volume 31 Issue 6

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ZHANG Zheng-ce, WANG Biao. Blow-up Rate Estimate for Degenerate Parabolic Equation With Nonlinear Gradient Term[J]. Applied Mathematics and Mechanics, 2010, 31(6): 756-764. doi: 10.3879/j.issn.1000-0887.2010.06.013

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Blow-up Rate Estimate for Degenerate Parabolic Equation With Nonlinear Gradient Term

doi: 10.3879/j.issn.1000-0887.2010.06.013

College of Science, Xi'an Jiaotong University, Xi'an 710049, P. R. China

Received Date: 1900-01-01
Rev Recd Date: 2010-04-19
Publish Date: 2010-06-15

Abstract

Abstract

Blow-up rate was obtained for a porous medium equation with non linear gradient term and a non linear boundary flux. By using the scaling method and the regularity estmiates of parabolic equations, the blow-up rate which was deter mined by the interaction between the diffusion and the boundary flux was gotten. Interestingly, compared with the previous results, the gradientterm which exponent does not exceed 2 will not affect the blow-up rate for solutions.
- degenerate parabolic equation,
- gradient,
- blow-up,
- nonlinear boundary flux

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References(33)

References

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