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Extinction and positivity for a system of semilinear parabolic variational inequalities

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Friedman, Avner and Herrero, Miguel A. (1992) Extinction and positivity for a system of semilinear parabolic variational inequalities. Journal of Mathematical Analysis and Applications, 167 (1). pp. 167-175. ISSN 0022-247X

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Official URL: http://www.sciencedirect.com/science/article/pii/0022247X92902448


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Abstract

A simple model of chemical kinetics with two concentrations u and v can be formulated as a system of two parabolic variational inequalities with reaction rates v(p) and u(q) for te diffusion processes of u and v, respectively. It is shown that if pq < 1 and the initial values of u and v are “comparable” then at least one of the concentrations becomes extinct in finite time. On the other hand, for any p = q > 0 there are initial values for which both concentrations do not become extinct in any finite time.


Item Type:Article
Uncontrolled Keywords:Model of chemical kinetics with two concentrations
Subjects:Sciences > Mathematics > Differential equations
ID Code:17417
Deposited On:13 Dec 2012 09:41
Last Modified:12 Dec 2018 15:08

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