Zobrazeno 1 - 10 of 27 pro vyhledávání: '"Artem Napov"'
1
Akademický článek
Linear-Time Solution of 3D Magnetostatics With Aggregation-Based Algebraic Multigrid Solvers
Autor: Federico Moro, Lorenzo Codecasa, Artem Napov
Publikováno v: IEEE Access, Vol 12, Pp 151693-151709 (2024)
Two different approaches for the linear-time solution of three-dimensional magnetostatic field problems encompassing large-scale linear systems with millions of degrees of freedom are presented. The $\varphi $ –method is formulated in terms of noda
Externí odkaz: https://doaj.org/article/f3e75d0a8edf48ae9b2f6375eae4f5b4
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2
Akademický článek
Fast Solution of 3-D Eddy-Current Problems in Multiply Connected Domains by a, v-φ and t-φ Formulations With Multigrid-Based Algorithm for Cohomology Generation
Autor: Federico Moro, Artem Napov, Matti Pellikka, Jasmin Smajic, Lorenzo Codecasa
Publikováno v: IEEE Access, Vol 10, Pp 112416-112432 (2022)
The fast solution of three-dimensional eddy current problems is still an open problem, especially when real-size finite element models with millions of degrees of freedom are considered. In order to lower the number of degrees of freedom a magnetic s
Externí odkaz: https://doaj.org/article/b81c8f61f72e47ec864b467ad7361344
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3
Akademický článek
A Hybrid a–φ Cell Method for Solving Eddy–Current Problems in 3–D Multiply–Connected Domains
Autor: Federico Moro, Artem Napov, Lorenzo Codecasa
Publikováno v: IEEE Access, Vol 9, Pp 158247-158260 (2021)
A hybrid $a - \varphi $ Cell Method formulation for solving eddy–current problems in 3–D multiply–connected regions is presented. By using the magnetic scalar potential the number of degrees of freedom in the exterior domain with respect to the
Externí odkaz: https://doaj.org/article/4837683e7cb44b79b7e09edf024bcc2e
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6
An all‐at‐once algebraic multigrid method for finite element discretizations of Stokes problem
Autor: Pierre‐Loïc Bacq, Stéphane Gounand, Artem Napov, Yvan Notay
Publikováno v: International Journal for Numerical Methods in Fluids
International Journal for Numerical Methods in Fluids, 2023, 95 (2), pp.193-214. ⟨10.1002/fld.5145⟩
We consider numerical solution of finite element discretizations of the Stokes problem. We focus on the transform-then-solve approach, which amounts to first apply a specific algebraic transformation to the linear system of equations arising from the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::857f86aed99f51e2497eccf0c704b836
https://hal.science/hal-04019685
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7
Fast Solution of 3-D Eddy-Current Problems in Multiply Connected Domains by a, v-phi and t-phi Formulations With Multigrid-Based Algorithm for Cohomology Generation
Autor: Federico Moro, Artem Napov, Matti Pellikka, Jasmin Smajic, Lorenzo Codecasa
Publikováno v: IEEE Access, 10
The fast solution of three-dimensional eddy current problems is still an open problem, especially when real-size finite element models with millions of degrees of freedom are considered. In order to lower the number of degrees of freedom a magnetic s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffefbe5e6ec6d57167e4cc7e555e5e51
https://hdl.handle.net/11577/3462862
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9
A divide-and-conquer bound for aggregate’s quality and algebraic connectivity
Autor: Artem Napov
Publikováno v: Discrete mathematics, 340 (10
We establish a divide-and-conquer bound for the aggregate's quality and algebraic connectivity measures, as defined for weighted undirected graphs. Aggregate's quality is defined on a set of vertices and, in the context of aggregation-based multigrid
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::289a2d8dcf5f62d7a81c26746a8c1cbc
https://doi.org/10.1016/j.disc.2017.05.003
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10
Algebraic analysis of two-level multigrid methods for edge elements
Autor: Artem Napov, Ronan Perrussel
Publikováno v: Electronic transactions on numerical analysis, 51
Electronic Transactions on Numerical Analysis
Electronic Transactions on Numerical Analysis, Kent State University Library, 2019, 51, pp.387-411. ⟨10.1553/etna_vol51s387⟩
Copyright to this article is irrevocably assigned to the publishers for publication in Electronic Transactions on Numerical Analysis. The URL of the publishers for this work is http://etna.mcs.kent.edu/vol.51.2019/pp387-411.dir/pp387-411.pdf.; Intern
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dac632a30d844f2932656aafa23696cd
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/267576
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