Zobrazeno 1 - 10
of 699
pro vyhledávání: '"Numerische Mathematik"'
Autor:
Kircheis, Melanie
The well-known fast Fourier transform (FFT) is one of the most important and widely used algorithms in a multitude of disciplines including engineering, natural sciences, scientific computing, and signal processing. Nevertheless, its restriction to e
Autor:
Bartel, Felix
Data gathering is a constant in human history with ever increasing amounts in quantity and dimensionality. To get a feel for the data, make it interpretable, or find underlying laws it is necessary to fit a function to the finite and possibly noisy d
Autor:
Burr, Laura
Numerische Mathematik, kurz Numerik, beschäftigt sich als Teilgebiet der Angewandten Mathematik bei der Lösung mathematischer Problemstellungen unter anderem mit der Entwicklung von Algorithmen und deren Analyse (Harbrecht, 2022). In den letzten Ja
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fdb9ab846ad0fec92357c7b002b3c5c
Autor:
Judakova, Gozel
In this thesis, we extend the locally modified finite element method, which is introduced in [47], to second order in two space dimensions. The method is based on a fixed patch mesh, which is then refined into sub-elements, to resolve an interface lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::811eb55de7ed6b16529857713876e553
Autor:
Springer, Rolf
Lightweight structures became more and more important over the last years. One special class of such structures are short fibre reinforced composites, produced by injection moulding. To avoid expensive experiments for testing the mechanical behaviour
Autor:
Chellappa, Sridhar
In this thesis, we study a posteriori error estimation and adaptivity with the goal of automatic model order reduction of large-scale systems. We propose efficient offline adaptive techniques that are aimed at (a) bringing down the significant offlin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d806985b163801c7de6e3b7b6167c85f
https://hdl.handle.net/21.11116/0000-000B-27AA-A21.11116/0000-000C-CD61-0
https://hdl.handle.net/21.11116/0000-000B-27AA-A21.11116/0000-000C-CD61-0
Accurate modelling of kinetic plasmas is computationally demanding. In order to accelerate Vlasov simulations, here low-rank approximations are utilized to compress the distribution function. A long-standing problem of Vlasov solvers has been that th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3579::ec905f807cf74ed08a42252e61c329b8
https://hss-opus.ub.ruhr-uni-bochum.de/opus4/frontdoor/index/index/docId/9025
https://hss-opus.ub.ruhr-uni-bochum.de/opus4/frontdoor/index/index/docId/9025
Autor:
Blechschmidt, Jan
This thesis considers classical methods to solve stochastic control problems and valuation problems from financial mathematics numerically. To this end, (linear) partial differential equations (PDEs) in non-divergence form or the optimality condition
Autor:
García Ramos, Luis Alberto
In this dissertation we study various preconditioning methods based on the complex shifted Laplacian for the Helmholtz equation. This equation describes time-harmonic solutions to the wave equation and appears in various important engineering and sci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed73c029dd5f50b12653d3f16085c63f
Autor:
Sperrhake, Jan
Ziel dieser Arbeit war die Entwicklung eines semi-analytischen Models mehrschichtiger nano- strukturierter Oberflächen. Einzelne Schichten werden hierbei in Forschungsgemeinschaft als “Metasurface” bezeichnet. In Folge nennt man Schichtsysteme a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5d7f6e8810b9a9ce7ae13676bdfa312