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Computational Treatment of Polyreaction Kinetics by Orthogonal Polynomials of a Discrete Variable.

Please always quote using this URN: urn:nbn:de:0297-zib-140
  • The paper presents a new approach to the computational treatment of polyreaction kinetics. This approach is characterized by a Galerkin method based on orthogonal polynomials of a discrete variable, the polymer degree (or chain length). In comparison with the known competing approaches (statistical moment treatment, Galerkin methods for continuous polymer models), the suggested method is shown to avoid the disadvantages and preserve the adventages 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.

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Author:Peter Deuflhard, Michael Wulkow
Document Type:ZIB-Report
Date of first Publication:1988/08/02
Series (Serial Number):ZIB-Report (SC-88-06)
Published in:Appeared in: IMPACT Comp. Sci. Eng. 1, pp. 269-301 (1989)
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