Iterative schemes for solving the Chandrasekhar H-equation using the Bernstein polynomials

[EN] In this work, we use Newton-type iterative schemes to obtain a domain of existence of solution, approximate the solution of Chandrasekhar H-equations and deal with the case of nonlinear integral equations with non-separable kernels. A change of variable in the Chandrasekhar H-equation allows us...

ver descrição completa

Detalhes bibliográficos
Autores: Hernández-Verón, M. A., Martínez Molada, Eulalia|||0000-0003-2869-4334
Formato: artículo
Fecha de publicación:2022
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/192057
Acesso em linha:https://riunet.upv.es/handle/10251/192057
Access Level:acceso abierto
Palavra-chave:Chandrasekhar H-equation
Non-separable kernel
Newton-type iterative scheme
Domain of existence of solution
Domain of uniqueness of solution
MATEMATICA APLICADA
Descrição
Resumo:[EN] In this work, we use Newton-type iterative schemes to obtain a domain of existence of solution, approximate the solution of Chandrasekhar H-equations and deal with the case of nonlinear integral equations with non-separable kernels. A change of variable in the Chandrasekhar H-equation allows us to apply a previous study by describing nonlinear integral equations of Hammerstein-type with non-separable kernel. We use the Bernstein polynomials for approximating the non-separable kernel and then we apply a semilocal converge study done previously to the Chandrasekhar H-equation. Moreover, we apply Newton-type iterative schemes for some specific Chandrasekhar H-equations to approximate the H-function solution and compare our results with others obtained previously. (C)& nbsp;2021 Elsevier B.V. All rights reserved.