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doi:10.1016/0899-8248(89)90013-X 
Copyright © 1989 Published by Elsevier Science (USA).
Computational treatment of polyreaction kinetics by orthogonal polynomials of a discrete variable
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P. Deuflhard and M. Wulkow
Available online 2 December 2003.
Abstract
This paper presents a new approach to the computational treatment of polyreaction kinetics, which is characterized by a Galerkin method based on orthogonal polynomials of a discrete variable, the polymer degree (or chain length). In comparison with known competing approaches (statistical moment treatment, Galerkin methods for continuous polymer models), the suggested method is shown to avoid the disadvantages and preserve the advantages of either of them. The basic idea of the method is the construction of a discrete inner product associated with a reasonably chosen probability density function. For the so-called Schulz-Flory distribution one thus obtains the discrete Laguerre polynomials, whereas the Poisson distribution leads to the Charlier polynomials. Numerical experiments for selected polyreaction mechanisms illustrate the efficiency of the proposed method.
