Zobrazeno 1 - 10
of 425
pro vyhledávání: '"Mueller, Olaf"'
Autor:
Müller, Olaf
This article suggests the definition of 'Lorentzian space' weakening the notion of Lorentzian length space just as much that it allows for a functor from the category of causally continuous Lorentzian manifolds to the corresponding category of Lorent
Externí odkaz:
http://arxiv.org/abs/2404.06428
On the non-slippery slope: Some observations on a recent paper on rolling bodies published in Nature
Autor:
Müller, Olaf
An interesting recent paper in Nature explores a new method to construct solid bodies rolling along given curves on an inclined plane, based on the Gauss Theorem. The present article complements those examinations with rigorous existence theorems and
Externí odkaz:
http://arxiv.org/abs/2312.16128
Autor:
Müller, Olaf
After calculating the Dushnik-Miller dimension of Minkowski spaces to be countable infinity, we define a novel notion of dimension for ordered spaces recovering the correct manifold dimension and obtain a corresponding obstruction for the existence o
Externí odkaz:
http://arxiv.org/abs/2303.11237
Autor:
Müller, Olaf
We construct analoga of Gromov-Hausdorff space for Lorentzian distances and show a Gromov precompactness result for one of them. After calculating the Dushnik-Miller dimension of Minkowski spaces (of manifold dimension larger than 2) to be countable
Externí odkaz:
http://arxiv.org/abs/2209.12736
Autor:
Müller, Olaf
We review three examples of functors from Lorentzian categories and their applications in finiteness results, singularity theorems and boundary constructions. The third example is a novel functor from the category of ordered measure spaces to the cat
Externí odkaz:
http://arxiv.org/abs/2205.01617
Autor:
Krpoun, Christoph, Müller, Olaf
We investigate the Dirac equation in Kerr-Newman space-time, using horizon penetrating coordinates (Eddington-Finkelstein-Coordinates) and the Newman-Penrose formalism to separate the equation into radial and angular systems of ordinary differential
Externí odkaz:
http://arxiv.org/abs/2204.05741
Autor:
Nielsen, Sebastian, Fisker, Ane B., Sie, Ali, Müller, Olaf, Nebie, Eric, Becher, Heiko, van der Klis, Fiona, Biering-Sørensen, Sofie, Byberg, Stine, Thysen, Sanne M., da Silva, Isaquel, Rodrigues, Amabelia, Martins, Cesario, Whittle, Hilton C., Aaby, Peter, Benn, Christine S.
Publikováno v:
In International Journal of Infectious Diseases November 2024 148
Autor:
Müller, Olaf
In this article, we show that the map assigning to a metric its restricted holonomy class (conjugacy class of the connected component of the holonomy representation) is lower semicontinuous on the space of $C^2$ metrics on any fixed manifold.
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Externí odkaz:
http://arxiv.org/abs/2109.05572
Autor:
Müller, Olaf
In the context of Bartnik's splitting conjecture, Galloway \cite{G} conjectured that for any globally hyperbolic, spatially compact and future timelike geodesically complete manifold $(M,g)$ satisfying the strong energy condition, the future boundary
Externí odkaz:
http://arxiv.org/abs/2102.02795
Autor:
Lu, Guangyu, Zhao, Li, Chai, Liying, Cao, Yuanyuan, Chong, Zeyin, Liu, Kaixuan, Lu, Yan, Zhu, Guoqiang, Xia, Pengpeng, Müller, Olaf, Zhu, Guoding, Cao, Jun
Publikováno v:
In Acta Tropica January 2024 249