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We give a deterministic polynomial time algorithm to compute the endomorphism ring of a supersingular elliptic curve in characteristic p, provided that we are given two noncommuting endomorphisms and the factorization of the discriminant of the ring
Externí odkaz:
http://arxiv.org/abs/2402.05059
Publikováno v:
Three-dimensional image-based modeling by combining SBFEM and transfinite element shape functions, Computational Mechanics 66 (2020), 911-30
The scaled boundary finite element method (SBFEM) has recently been employed as an efficient means to model three-dimensional structures, in particular when the geometry is provided as a voxel-based image. To this end, an octree decomposition of the
Externí odkaz:
http://arxiv.org/abs/2310.19646
Autor:
Eisenträger, Sascha, Radtke, Lars, Garhuom, Wadhah, Löhnert, Stefan, Düster, Alexander, Juhre, Daniel, Schillinger, Dominik
The application of immersed boundary methods in static analyses is often impeded by poorly cut elements (small cut elements problem), leading to ill-conditioned linear systems of equations and stability problems. While these concerns may not be param
Externí odkaz:
http://arxiv.org/abs/2310.11935
Autor:
Radtke, Lars, Marter, Paul, Duvigneau, Fabian, Eisenträger, Sascha, Juhre, Daniel, Düster, Alexander
The numerical investigation of acoustic damping materials, such as foams, constitutes a valuable enhancement to experimental testing. Typically, such materials are modeled in a homogenized way in order to reduce the computational effort and to circum
Externí odkaz:
http://arxiv.org/abs/2307.04624
An efficient mass lumping scheme for isogeometric analysis based on approximate dual basis functions
In this contribution, we provide a new mass lumping scheme for explicit dynamics in isogeometric analysis (IGA). To this end, an element formulation based on the idea of dual functionals is developed. Non-Uniform Rational B-splines (NURBS) are applie
Externí odkaz:
http://arxiv.org/abs/2306.12257
Towards higher-order accurate mass lumping in explicit isogeometric analysis for structural dynamics
Publikováno v:
Computer Methods in Applied Mechanics and Engineering, Volume xxx, xxx 2023, 116233
We present a mass lumping approach based on an isogeometric Petrov-Galerkin method that preserves higher-order spatial accuracy in explicit dynamics calculations irrespective of the polynomial degree of the spline approximation. To discretize the tes
Externí odkaz:
http://arxiv.org/abs/2305.12916
Publikováno v:
The Bulletin of Symbolic Logic, 2023 Dec 01. 29(4), 626-655.
Externí odkaz:
https://www.jstor.org/stable/27285435
Autor:
Hille‐Rehfeld, Annette (AUTHOR)
Publikováno v:
Chemie in unserer Zeit. Apr2024, Vol. 58 Issue 2, p78-79. 2p.
Autor:
Eisenträger, Adolf1 adolf.eisentraeger@uba.de
Publikováno v:
Politische Ökologie. Jun2024, Issue 177, p88-93. 6p.