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A criterion for blow-up of solutions to semilinear heat equations

Journal Article · · SIAM J. Math. Anal.; (United States)
DOI:https://doi.org/10.1137/0518055· OSTI ID:5732889
The author's prove that for the parabolic initial value problem ..mu../sub t/=..delta mu..+deltaf(..mu..) there is a finite time blow-up of the solution, provided /e// is greater than the upper bound to the spectrum of the steady state problem and (f/f') is concave. An upper bound of the blow-up time is given. The proof is based on a comparison with a subsolution to the parabolic initial value problem.
Research Organization:
Dept. of Mathematics, Purdue Univ., West Lafayette, IN 47907
OSTI ID:
5732889
Journal Information:
SIAM J. Math. Anal.; (United States), Journal Name: SIAM J. Math. Anal.; (United States) Vol. 18:3; ISSN SJMAA
Country of Publication:
United States
Language:
English

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