Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Martin Lesourd"'
Autor:
Peter Galison, Juliusz Doboszewski, Jamee Elder, Niels C. M. Martens, Abhay Ashtekar, Jonas Enander, Marie Gueguen, Elizabeth A. Kessler, Roberto Lalli, Martin Lesourd, Alexandru Marcoci, Sebastián Murgueitio Ramírez, Priyamvada Natarajan, James Nguyen, Luis Reyes-Galindo, Sophie Ritson, Mike D. Schneider, Emilie Skulberg, Helene Sorgner, Matthew Stanley, Ann C. Thresher, Jeroen Van Dongen, James Owen Weatherall, Jingyi Wu, Adrian Wüthrich
Publikováno v:
Galaxies, Vol 11, Iss 1, p 32 (2023)
This white paper outlines the plans of the History Philosophy Culture Working Group of the Next Generation Event Horizon Telescope Collaboration.
Externí odkaz:
https://doaj.org/article/54120f590abb4f3f93c71178d6c5d9e4
Autor:
Martin Lesourd, Eric Ling
Publikováno v:
Annales Henri Poincaré. 23:4391-4408
Currently available topological censorship theorems are meant for gravitationally isolated black hole spacetimes with cosmological constant $\Lambda=0$ or $\Lambda0$ and which can be applied to whole universes containing possibly multiple collections
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a3683f9efed8c3179ffac8150df8f16
https://doi.org/10.1007/s00023-022-01200-1
https://doi.org/10.1007/s00023-022-01200-1
We prove a harmonic asymptotics density theorem for asymptotically flat initial data sets with compact boundary that satisfy the dominant energy condition. We use this to settle the spacetime positive mass theorem, with rigidity, for initial data set
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b3b1f1612d80b1342257904f271b142
http://arxiv.org/abs/2112.12017
http://arxiv.org/abs/2112.12017
Publikováno v:
Calculus of Variations and Partial Differential Equations. 60
We explore various notions of stability for surfaces embedded and immersed in spacetimes and initial data sets. The interest in such surfaces lies in their potential to go beyond the variational techniques which often underlie the study of minimal an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::831dc6a64dac656cb7c3f18447e08113
https://doi.org/10.1007/s00526-021-02063-w
https://doi.org/10.1007/s00526-021-02063-w
Autor:
Martin Lesourd, Ettore Minguzzi
We prove that if in a spacetime endowed with a merely continuous metric, a complete partial Cauchy hypersurface has nonempty Cauchy horizon, then the horizon is caused by the presence of almost closed causal curves behind it or by the influence of po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60b5b6892061adfdc55654b300ded4ba
Autor:
Martin Lesourd
Publikováno v:
General Relativity and Gravitation. 51
Cosmological singularity theorems such as that of Hawking and Penrose assume local curvature conditions as well as global ones like the existence of a compact (achronal) slice. Here, we prove a new singularity theorem for chronological spacetimes tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4e946b7caf2d77adf10b254eac8cdfd
https://doi.org/10.1007/s10714-019-2590-6
https://doi.org/10.1007/s10714-019-2590-6
Chru\'sciel, Isenberg, and Pollack constructed a class of vacuum cosmological spacetimes that do not admit Cauchy surfaces with constant mean curvature. We prove that, for sufficiently large values of the gluing parameter, these examples are both fut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79f6b7bc480113ae060dbcab27797199
http://arxiv.org/abs/1902.07411
http://arxiv.org/abs/1902.07411
Autor:
Martin Lesourd
Publikováno v:
Classical and Quantum Gravity. 38:115015
In a general Lorentzian manifold M, the past lightcone of a point is a proper subset of M that does not carry enough information to determine the rest of M. That said, if M is a globally hyperbolic Cauchy development of vacuum initial data on a Cauch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0925529393d1d8288fc30b2cb1d6bb86
https://doi.org/10.1088/1361-6382/abfaec
https://doi.org/10.1088/1361-6382/abfaec
Autor:
Martin Lesourd
We offer a mathematically rigorous basis for the widely held suspicion that full black hole evaporation is in tension with predictability. Based on conditions expressing the global causal structure of evaporating black hole spacetimes, we prove two t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9e16fb4d0ddde860ac88f753a3f2cfb
http://arxiv.org/abs/1808.07303
http://arxiv.org/abs/1808.07303
Autor:
Martin Lesourd
The interior of the Kerr solution is singular and achronological. The classic singularity theorem by Hawking and Penrose relies on chronology, and thus does not apply to the Kerr solution. An improvement of their theorem by Kriele partially removes t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1db3afa6dc5c78836d9ac91ac2b092fe
http://arxiv.org/abs/1804.01893
http://arxiv.org/abs/1804.01893