Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Juliano B. Francisco"'
Publikováno v:
Computational and Applied Mathematics. 42
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65ef7ce17c440c4e5a82b5cdbf2c886b
https://doi.org/10.1007/s40314-023-02310-0
https://doi.org/10.1007/s40314-023-02310-0
Publikováno v:
Journal of Applied Mathematics and Physics. :661-682
In this paper, we consider the numerical treatment of an inverse acoustic scattering problem that involves an impenetrable obstacle embedded in a layered medium. We begin by employing a modified version of the well known factorization method, in whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca181403234bf14ce6941419ec8ca0e7
https://doi.org/10.4236/jamp.2021.94048
https://doi.org/10.4236/jamp.2021.94048
Publikováno v:
Numerical Algorithms. 86:1651-1684
Minimizing a differentiable function restricted to the set of matrices with orthonormal columns finds applications in several fields of science and engineering. In this paper, we propose to solve this problem through a nonmonotone variation of the in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9c1727190cc694cf403841d1df15bf5
https://doi.org/10.1007/s11075-020-00948-z
https://doi.org/10.1007/s11075-020-00948-z
Publikováno v:
Computational Optimization and Applications. 76:867-888
This paper deals with a new variant of the inexact restoration method of Fischer and Friedlander (Comput Optim Appl 46:333–346, 2010) for nonlinear programming. We propose an algorithm that replaces the monotone line search performed in the tangent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2440b8388e4da29262565b3840bb3f2f
https://doi.org/10.1007/s10589-019-00129-2
https://doi.org/10.1007/s10589-019-00129-2
Publikováno v:
Linear Algebra and its Applications. 523:59-78
The projection of a symmetric matrix onto the positive semidefinite cone is an important problem with application in many different areas such as economy, physics and, directly, semidefinite programming. This problem has analytical solution, but it r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5643edfe207580ed34af632a3c4acad2
https://doi.org/10.1016/j.laa.2017.02.014
https://doi.org/10.1016/j.laa.2017.02.014
Publikováno v:
Applied Numerical Mathematics. 112:51-64
This paper concerns a non-monotone algorithm for minimizing differentiable functions on closed sets. A general numerical scheme is proposed which combines a regularization/trust-region framework with a non-monotone strategy. Global convergence to sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3810f79ba22cd636a9b0f7c9abc789e9
https://doi.org/10.1016/j.apnum.2016.09.018
https://doi.org/10.1016/j.apnum.2016.09.018
Publikováno v:
Inverse Problems in Science and Engineering. 25:1577-1600
In this paper a new numerical method for the shape reconstruction of obstacles in elastic scattering is proposed. Initially, the direct scattering problem for a rigid body and the mathematical setting for the corresponding inverse one are presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59f4e890c971912250c753e46b6288e3
https://doi.org/10.1080/17415977.2016.1273919
https://doi.org/10.1080/17415977.2016.1273919
Publikováno v:
Journal of Computational and Applied Mathematics. 273:61-75
We present a Tikhonov parameter choice approach for three-dimensional reconstructions based on a maximum product criterion (MPC) which provides a regularization parameter located in the concave part of the L-curve in log-log scale. Our method, baptiz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ffde787bcc93e8e023fcb9fdc94291a
https://doi.org/10.1016/j.cam.2014.06.003
https://doi.org/10.1016/j.cam.2014.06.003
Publikováno v:
Applied Mathematics and Computation. 219:2100-2113
A crucial problem concerning Tikhonov regularization is the proper choice of the regularization parameter. This paper deals with a generalization of a parameter choice rule due to Reginska (1996) [31] , analyzed and algorithmically realized through a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78eca7ea02c035ed3c24c3372218908c
https://doi.org/10.1016/j.amc.2012.08.054
https://doi.org/10.1016/j.amc.2012.08.054
Publikováno v:
Journal of Computational and Applied Mathematics. 236(17):4264-4275
Kirsch’s factorization method is a fast inversion technique for visualizing the profile of a scatterer from measurements of the far-field pattern. We present a Tikhonov parameter choice approach based on a maximum product criterion (MPC) which prov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95ec867a37cdf122d99a0231daf472e7