Zobrazeno 1 - 10 of 67 pro vyhledávání: '"B. Tomas Johansson"'
2
A method of fundamental solutions for heat and wave propagation from lateral Cauchy data
Autor: B. Tomas Johansson, Ihor Borachok, Roman Chapko
Publikováno v: Numerical Algorithms. 89:431-449
We derive a method of fundamental solutions (MFS) for the numerical solution of an ill-posed lateral Cauchy problem for the hyperbolic wave equation in bounded planar annular domains. The Laguerre transform is applied to reduce the time-dependent lat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3cf657320d6860b5261f717d8a918078
https://doi.org/10.1007/s11075-021-01120-x
Zobrazit plný text záznamu
6
On the alternating method and boundary-domain integrals for elliptic Cauchy problems
Autor: Roman Chapko, B. Tomas Johansson, Andriy Beshley
Publikováno v: Computers & Mathematics with Applications. 78:3514-3526
A numerical implementation of the alternating iterative method is presented for the Cauchy problem of the conductivity equation in planar annular domains. The conductivity is space dependent as opposed to earlier works, where it is assumed constant.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7791e0a0654e79dddf225b680e7e4608
https://doi.org/10.1016/j.camwa.2019.05.025
Zobrazit plný text záznamu
7
Integral equations for biharmonic data completion
Autor: B. Tomas Johansson, Roman Chapko
Publikováno v: Inverse Problems & Imaging. 13:1095-1111
A boundary integral based method for the stable reconstruction of missing boundary data is presented for the biharmonic equation. The solution (displacement) is known throughout the boundary of an annular domain whilst the normal derivative and bendi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9aa58692609d287f4dae0a3c6ab4c65d
https://doi.org/10.3934/ipi.2019049
Zobrazit plný text záznamu
8
Numerical simulations in 3-dimensions of reaction-diffusion models for brain tumour growth
Autor: George Baravdish, B. Tomas Johansson, Rym Jaroudi, Freddie Åström
We work with a well-known model of reaction-diffusion type for brain tumour growth and accomplish full 3-dimensional (3d) simulations of the tumour in time on two types of imaging data, the 3d Shepp-Logan head phantom image and an MRI T1-weighted bra
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d40a50cc81613bba3e5a945758562f18
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-158572
Zobrazit plný text záznamu
9
An iterative regularizing method for an incomplete boundary data problem for the biharmonic equation
Autor: B. Tomas Johansson, Roman Chapko
Publikováno v: ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik. 98:2010-2021
An incomplete boundary data problem for the biharmonic equation is considered, where the displacement is known throughout the boundary of the solution domain whilst the normal derivative and bending moment are specified on only a portion of the bound
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::286f29356747972ffc2d8391c0eb5387
https://doi.org/10.1002/zamm.201800102
Zobrazit plný text záznamu
10
An iterative method for the Cauchy problem for second-order elliptic equations
Autor: Ihor Borachok, George Baravdish, Marián Slodička, B. Tomas Johansson, Roman Chapko
Publikováno v: International Journal of Mechanical Sciences. :216-223
The problem of reconstructing the solution to a second-order elliptic equation in a doubly-connected domain from knowledge of the solution and its normal derivative on the outer part of the boundary of the solution domain, that is from Cauchy data, i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4691dc7bdcb64ad75ff222a265efdf88
https://doi.org/10.1016/j.ijmecsci.2018.04.042
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje