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Журнал вычислительной математики и математической физики, 2024, том 64, номер 5, статья опубликована в англоязычной версии журнала
(Mi zvmmf11759)
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Эта публикация цитируется в 1 научной статье (всего в 1 статье)
Статьи, опубликованные в английской версии журнала
A Shannon wavelet-based approximation scheme for Thomas–Fermi models of confined atoms and ions
Sharda Kumari, Pratik Majhi, M. M. Panja Department of Mathematics, Visva-Bharati (A central University), 731235, Santiniketan, West Bengal, India
Аннотация:
An efficient numerical scheme based on the Shannon wavelet basis has been presented here for obtaining highly accurate approximate solutions of Thomas–Fermi equations (TFE) in the finite domain with various initial/boundary conditions (IC/BCs). A point transformation followed by a finite Whittaker Cardinal function approximation (FWCFA) is employed here. The formula relating exponent $n$ in the desired order of accuracy $(O(10^{-n}))$ with the resolution $J$, the lower and upper limits in the sum of FWCFA have been provided. Examples of TFE with various IC/BCs have been exercised to exhibit the elegance and efficiency of the present scheme.
Ключевые слова:
Thomas–Fermi equations in the finite domain, compressed or confined atoms, statistical model for charge densities, Dirichlet’s, Neumann’s, Robin’s boundary conditions, Shannon wavelets, Whittaker Cardinal function approximation.
Поступила в редакцию: 02.11.2023 Исправленный вариант: 02.11.2023 Принята в печать: 13.06.2023
Образец цитирования:
Sharda Kumari, Pratik Majhi, M. M. Panja, “A Shannon wavelet-based approximation scheme for Thomas–Fermi models of confined atoms and ions”, Comput. Math. Math. Phys., 64:5 (2024), 918–940
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/zvmmf11759
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