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pro vyhledávání: '"A, Ryłko"'
We consider three different approaches (by Ashtekar, Bonga and Kesavan; Hoque and Virmani; and Dobkowski-Ry\l{}ko and Lewandowski) to investigate gravitational radiation produced by time changing matter source in de Sitter spacetime. All of them lead
Externí odkaz:
http://arxiv.org/abs/2407.20800
Isolated horizons that admit the Hopf bundle structure $H\rightarrow S_2$ are investigated, however the null direction is allowed not to be tangent to the bundle fibres. The geometry of such horizons is characterised by data set on a topological two-
Externí odkaz:
http://arxiv.org/abs/2308.14044
We study gravitational radiation produced by time changing matter source in de Sitter spacetime. We consider a cosmological Killing horizon instead of the conformal boundary used in the radiation theory in the Minkowski spacetime. The energy of the r
Externí odkaz:
http://arxiv.org/abs/2205.09050
Autor:
Lofek, Magdalena, Ryłko, Anna, Grzybek, Gabriela, Ejsmont, Aleksander, Darvishzad, Termeh, Goscianska, Joanna, Kotarba, Andrzej, Stelmachowski, Pawel
Publikováno v:
In Catalysis Today 1 November 2024 441
We consider the steady heat conduction problem within a thermal isotropic and homogeneous infinite strip composite reinforced by uniformly and randomly distributed non-overlapping carbon nanotubes (CNTs) and containing voids. We treat the CNTs as thi
Externí odkaz:
http://arxiv.org/abs/2201.00003
Publikováno v:
In Acta Materialia 1 September 2024 276
Autor:
Ryłko-Kurpiewska, Anna
Publikováno v:
Poradnik Językowy / The Linguistic Guide. (03):22-36
Externí odkaz:
https://www.ceeol.com/search/article-detail?id=1122692
Publikováno v:
Phys. Rev. D 100, 084058 (2019)
We consider $3$-dimensional isolated horizons (IHs) generated by null curves that form nontrivial $U(1)$ bundles. We find a natural interplay between the IH geometry and the $U(1)$-bundle geometry. In this context we consider the Petrov type D equati
Externí odkaz:
http://arxiv.org/abs/1907.03484
Akademický článek
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The Near Horizon Geometry (NHG) equation with a cosmological constant {\Lambda} is considered on compact 2-dimensional manifolds. It is shown that every solution satisfies the Type D equation at every point of the manifold. A similar result known in
Externí odkaz:
http://arxiv.org/abs/1807.05934