Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Steffen Weißer"'
Autor:
Steffen Weisser, Stefano Berrone, Andrea Borio, Marco Verani, Paola F. Antonietti, Alessandro D'Auria
Publikováno v:
IMA Journal of Numerical Analysis. 42:1273-1312
We derive an anisotropic a posteriori error estimate for the adaptive conforming virtual element approximation of a paradigmatic two-dimensional elliptic problem. In particular, we introduce a quasi-interpolant operator and exploit its approximation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bfc019f3bc503d0a62f250e4c4a8eb2
https://doi.org/10.1093/imanum/drab001
https://doi.org/10.1093/imanum/drab001
Autor:
Daniel Seibel, Steffen Weißer
Publikováno v:
Computers & Mathematics with Applications. 80:2073-2089
In this article, we consider recovery-based a posteriori error estimators for the Virtual Element Method (VEM) and the Boundary Element Method based Finite Element Method (BEM-based FEM). Both methods are Galerkin methods on polygonal and polyhedral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb3c702cda2e1ec308b361891f7b2ece
https://doi.org/10.1016/j.camwa.2020.09.004
https://doi.org/10.1016/j.camwa.2020.09.004
Publikováno v:
SIAM Journal on Scientific Computing. 42:A1289-A1316
We present a Trefftz-type finite element method on meshes consisting of curvilinear polygons. Local basis functions are computed using integral equation techniques that allow for the efficient and accurate evaluation of quantities needed in the forma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a650bd3aeb09d3f68b804e43c9921b46
https://doi.org/10.1137/19m1294046
https://doi.org/10.1137/19m1294046
Publikováno v:
Computers & Mathematics with Applications. 75:3971-3986
We consider families of finite elements on polygonal meshes, that are defined implicitly on each mesh cell as solutions of local Poisson problems with polynomial data. Functions in the local space on each mesh cell are evaluated via Nystrom discretiz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::934fb018fe3739971e5c1b72019192f1
https://doi.org/10.1016/j.camwa.2018.03.007
https://doi.org/10.1016/j.camwa.2018.03.007
Autor:
Thomas Wick, Steffen Weißer
Publikováno v:
Computational Methods in Applied Mathematics. 18:753-776
In this work, we realize goal-oriented error estimation using the dual-weighted residual method on general polygonal meshes. Such meshes are of current interest in various applications thanks to their great flexibility. Specifically the discrete prob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5efd48a271422f5133bd2d616ed4de68
https://doi.org/10.1515/cmam-2017-0046
https://doi.org/10.1515/cmam-2017-0046
Publikováno v:
Lecture Notes in Computational Science and Engineering ISBN: 9783319964140
In recent years, the numerical treatment of boundary value problems with the help of polygonal and polyhedral discretization techniques has received a lot of attention within several disciplines. Due to the general element shapes an enormous flexibil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a63037b71cca6e9ac162651b9f3ddfdd
http://hdl.handle.net/11583/2723027
http://hdl.handle.net/11583/2723027
Autor:
Steffen Weißer
Publikováno v:
Lecture Notes in Computational Science and Engineering ISBN: 9783030209605
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc436284bb33951b837cea6aebc9759d
https://doi.org/10.1007/978-3-030-20961-2_1
https://doi.org/10.1007/978-3-030-20961-2_1
Autor:
Steffen Weißer, Sergej Rjasanow
Publikováno v:
Lecture Notes in Computational Science and Engineering ISBN: 9783030142438
In this paper, we present a modification of the clustering procedure for the fast Boundary Element Method (BEM), based on hierarchical techniques for the matrix decomposition and Adaptive Cross Approximation (ACA). An initial segmentation of the surf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e69e652c0f2c6d49f2da668e6118402d
https://doi.org/10.1007/978-3-030-14244-5_14
https://doi.org/10.1007/978-3-030-14244-5_14
Autor:
Steffen Weißer
Publikováno v:
Lecture Notes in Computational Science and Engineering ISBN: 9783030209605
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::206b9cf1e5db0958a79ca57027d217fa
https://doi.org/10.1007/978-3-030-20961-2
https://doi.org/10.1007/978-3-030-20961-2