Exact solutions for logistic reaction-diffusion equations in biology
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2016
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Broadbridge, P.
Bradshaw Hajek, B.H.
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Journal article
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Zeitschrift fur Angewandte Mathematik und Physik, 2016; 67(4, article no. 93):1-13
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Reaction–diffusion equations with a nonlinear source have been widely used to model various systems, with particular application to biology. Here, we provide a solution technique for these types of equations in N-dimensions. The nonclassical symmetry method leads to a single relationship between the nonlinear diffusion coefficient and the nonlinear reaction term; the subsequent solutions for the Kirchhoff variable are exponential in time (either growth or decay) and satisfy the linear Helmholtz equation in space. Example solutions are given in two dimensions for particular parameter sets for both quadratic and cubic reaction terms.
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Copyright 2016 Springer
Access Condition Notes: Postprint available after 1 October 2017