Approximation of the Modified Error Function by Using Perturbative and Sinc Collocation Methods

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Approximation of the Modified Error Function by Using Perturbative and Sinc Collocation Methods | Chapter 7 | Recent Studies in Mathematics and Computer Science Vol. 1

This chapter deals with the evaluation of some integrals involving error-, exponential- and algebraic functions with an objective to present explicit expressions for the second and third order correction terms in the approximation of the modified error function in the perturbation approach. Over and above an approximation of the desired modified error function has been developed in sinc basis. The accuracy in the approximation (perturbation method and sinc basis) have been compared with the approximate value available in the literature. Results obtained by perturbation approximation and scheme based on sinc basis seem to be useful in the study of Stefan problem. The results obtained here appear to be new and resolve the lack of desired monotonicity property in the results derived earlier e.g. by Ceretania et al.

Author(s) Details
Supriya Mandal
Department of Mathematics, Visva-Bharati (A Central University), Santiniketan-731235, West Bengal, India.

Debabrata Singh
Department of Mathematics, Visva-Bharati (A Central University), Santiniketan-731235, West Bengal, India.

M. M. Panja
Department of Mathematics, Visva-Bharati (A Central University), Santiniketan-731235, West Bengal, India.

View Book – http://bp.bookpi.org/index.php/bpi/catalog/book/153



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