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pro vyhledávání: '"Altmann R."'
Autor:
Altmann, R., Schulze, P.
We introduce an energy-based model, which seems especially suited for constrained systems. The proposed model provides an alternative to the popular port-Hamiltonian framework and exhibits similar properties such as energy dissipation as well as stru
Externí odkaz:
http://arxiv.org/abs/2406.12391
Autor:
Altmann, R., Moradi, A.
This paper deals with the application of probabilistic time integration methods to semi-explicit partial differential-algebraic equations of parabolic type and its semi-discrete counterparts, namely semi-explicit differential-algebraic equations of i
Externí odkaz:
http://arxiv.org/abs/2406.07220
Autor:
Altmann, R., Deiml, M.
We propose a novel time stepping method for linear poroelasticity by extending a recent iterative decoupling approach to the second-order case. This results in a two-step scheme with an inner iteration and a relaxation step. We prove second-order con
Externí odkaz:
http://arxiv.org/abs/2403.12699
This paper is devoted to the numerical solution of constrained energy minimization problems arising in computational physics and chemistry such as the Gross-Pitaevskii and Kohn-Sham models. In particular, we introduce the Riemannian Newton methods on
Externí odkaz:
http://arxiv.org/abs/2307.13820
Autor:
Altmann, R., Deiml, M.
Within this paper, we introduce and analyze a novel time stepping scheme for linear poroelasticity. In each time frame, we iteratively solve the flow and mechanics equations with an additional damping step for the pressure variable. Depending on the
Externí odkaz:
http://arxiv.org/abs/2304.12224
Autor:
Altmann, R., Zimmer, C.
This paper introduces a novel approach for the construction of bulk--surface splitting schemes for semi-linear parabolic partial differential equations with dynamic boundary conditions. The proposed construction is based on a reformulation of the sys
Externí odkaz:
http://arxiv.org/abs/2209.07835
We introduce a semi-explicit time-stepping scheme of second order for linear poroelasticity satisfying a weak coupling condition. Here, semi-explicit means that the system, which needs to be solved in each step, decouples and hence improves the compu
Externí odkaz:
http://arxiv.org/abs/2203.16664
Autor:
Altmann, R., Zimmer, C.
This paper deals with time stepping schemes for the Cahn--Hilliard equation with three different types of dynamic boundary conditions. The proposed schemes of first and second order are mass-conservative and energy-dissipative and -- as they are base
Externí odkaz:
http://arxiv.org/abs/2203.15097
Autor:
Fawcett, Christina
Publikováno v:
Modern Language Studies, 2011 Jan 01. 40(2), 96-98.
Externí odkaz:
https://www.jstor.org/stable/23339637
Autor:
Bouchard, Constance B.
Publikováno v:
International Journal of the Classical Tradition, 2008 Sep 01. 15(3), 498-500.
Externí odkaz:
https://www.jstor.org/stable/25691257