Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Juarez S. Azevedo"'
Publikováno v:
Discover Applied Sciences, Vol 6, Iss 10, Pp 1-17 (2024)
Abstract In this study, we systematically investigate an inverse method for heterogeneous porous media to obtain porosity and permeability fields considering only production well data. The forward modeling of the input data, namely pressure and satur
Externí odkaz:
https://doaj.org/article/2854b6007bc344b286cc23790ddf5dc0
Autor:
Saulo P. Oliveira, Andressa Jacqueline de Oliveira, Rodrigo Guimarães, Wilson M. Figueiró, Winicius J Silva, Juarez S. Azevedo
Publikováno v:
Geophysical Journal International. 224:435-448
SUMMARY Wave-modelling methods based on asymptotic ray theory have a lower computational cost than full wave-equation methods but require a smooth velocity field, though discontinuities may be handled by imposing interface conditions between adjacent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f719922458438e1287c15b16be7f470
https://doi.org/10.1093/gji/ggaa476
https://doi.org/10.1093/gji/ggaa476
Publikováno v:
Applied Numerical Mathematics. 134:31-45
We study the numerical approximation of functional integral equations, a class of nonlinear Fredholm-type integral equations of the second kind, by the collocation method with piecewise continuous basis functions. The resulting nonlinear algebraic sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0f6e757051cb7f59aac2cdbc1aa43ac
https://doi.org/10.1016/j.apnum.2018.07.002
https://doi.org/10.1016/j.apnum.2018.07.002
Publikováno v:
Topics in Integral and Integro-Differential Equations ISBN: 9783030655082
We employ the spectral element method with Gauss-Lobatto-Legendre collocation points to approximate nonlinear integral equations of Hammerstein type. Using the Banach Fixed Point Theorem, we establish sufficient conditions for the existence and uniqu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87d0776290c10c5889d0c6ad287e2006
https://doi.org/10.1007/978-3-030-65509-9_2
https://doi.org/10.1007/978-3-030-65509-9_2
Autor:
Mohamed Lounis, Juarez S. Azevedo
The novel coronavirus diseases 2019 (COVID-19) in Wuhan is continuing to impress the world by its fast spread and the number of affected persons attracting an unprecedented attention. In this article, we used the classical SEIR model and a generalize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0233851caf6200ac0f9561576bf26a60
Publikováno v:
Investigação, Construção e Difusão do Conhecimento em Matemática
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ebb1aab8d26e95cc76a60056198a277
https://doi.org/10.22533/at.ed.75620160724
https://doi.org/10.22533/at.ed.75620160724
Publikováno v:
Computational and Applied Mathematics. 37:1825-1846
We study the numerical approximation of a homogeneous Fredholm integral equation of second kind associated with the Karhunen–Loeve expansion of Gaussian random fields. We develop, validate, and discuss an algorithm based on the Galerkin method with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7c15ebd23f2dd2b391e54994576f785
https://doi.org/10.1007/s40314-017-0422-4
https://doi.org/10.1007/s40314-017-0422-4
Publikováno v:
TEMA (São Carlos). 21:521
The collocation method based on Chebyshev basis functions, coupled Picard iterative process, is proposed to solve a functional Volterra integral equation of the second kind. Using the Banach Fixed Point Theorem, we prove theorems on the existence and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a07e09d2ee594c58bfa434a676013284
https://doi.org/10.5540/tema.2020.021.03.521
https://doi.org/10.5540/tema.2020.021.03.521
In this work we consider the general functional-integral equation: \begin{equation*}y(t) = f\left(t, \int_{a}^{b} k(t,s)g(s,y(s))ds\right), \qquad t\in [a,b],\end{equation*}and give conditions that guarantee existence and uniqueness of solution in $L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c8da937290ceee374e4f6f4d3596f64
http://arxiv.org/abs/1803.10094
http://arxiv.org/abs/1803.10094
Autor:
Juarez S. Azevedo, Saulo P. Oliveira
Publikováno v:
Applied Mathematics and Computation. 267:517-528
We investigate the numerical approximation of two-dimensional, second kind Fredholm integral eigenvalue problems by the Galerkin method with the Cohen-Daubechies-Vial (CDV) wavelet family. This choice provides us orthogonal bases for bounded domains,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d410f7e97e1268e9c31abf19d106eb28
https://doi.org/10.1016/j.amc.2015.01.083
https://doi.org/10.1016/j.amc.2015.01.083