Zobrazeno 1 - 10
of 3 537
pro vyhledávání: '"ill-posed problems"'
Publikováno v:
Modelling, Vol 5, Iss 2, Pp 530-548 (2024)
The modeling of many problems of practical interest leads to nonlinear ill-posed equations (for example, the parameter identification problem (see the Numerical section)). In this article, we introduce a new source condition (SC) and a new parameter
Externí odkaz:
https://doaj.org/article/d7a30025bcdc4d05b5c18687ff266aeb
Autor:
Il'ya V. Boykov, Anastasiya A. Pivkina
Publikováno v:
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, Iss 1 (2024)
Background. The article is devoted to approximate methods for solving the phase problem for one-dimensional and two-dimensional signals. The cases of continuous and discrete signals are considered. The solution of the phase problem consists of two s
Externí odkaz:
https://doaj.org/article/7046b06d43a841f08058470f94bbdadf
Autor:
Aleksandr A. Belov
Publikováno v:
Discrete and Continuous Models and Applied Computational Science, Vol 31, Iss 2, Pp 120-127 (2023)
The paper describes a grid method for solving an ill-posed problem for the Fredholm equation of the first kind using the A. N. Tikhonov regularizer. The convergence theorem for this method was formulated and proved. A procedure for thickening grids w
Externí odkaz:
https://doaj.org/article/f4f0228a067842a5ae183e9293fc4db9
Publikováno v:
AIMS Mathematics, Vol 8, Iss 11, Pp 26782-26800 (2023)
This paper presents three types of tensor Conjugate-Gradient (tCG) methods for solving large-scale linear discrete ill-posed problems based on the t-product between third-order tensors. An automatic determination strategy of a suitable regularization
Externí odkaz:
https://doaj.org/article/63b5c1f4c9b2436b8062df72b2611823
Publikováno v:
Remote Sensing, Vol 16, Iss 16, p 2958 (2024)
Doppler positioning, as an early form of positioning, has regained significant research interest in the context of Low Earth Orbit (LEO) satellites.Given the LEO mega-constellation scenario, the objective function of Doppler positioning manifests sig
Externí odkaz:
https://doaj.org/article/a2f097f890dc402ca71038351e467555
Publikováno v:
Mathematical Modelling and Analysis, Vol 29, Iss 1 (2024)
The present paper is devoted to identifying an inaccessible boundary condition for a fractional elliptic problem of Tricomi-Gellerstedt-Keldysh-type. Using the expansion Fourier method, the considered problem can be reformulated as an operator equati
Externí odkaz:
https://doaj.org/article/3a37c2fc7f45463ea80b1d24122b84c9
Autor:
Mohamed Nasseh Nadir, Adel Jawahdou
Publikováno v:
REMAT, Vol 10, Iss 1 (2024)
Numerous methods have been studied and discussed for solving ill-posed Volterra integral equations and ill-posed Fredholm integral equations, but rarely for both simultaneously. In this study, we focus on numerically solving the ill-posed Volterra-Fr
Externí odkaz:
https://doaj.org/article/ea812ec90392477589a9040d360ee6a7
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.