Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Yoshiyuki Morisawa"'
We present a framework for reducing all possible cohomogeneity-one strings, i.e., strings with geometrical symmetry, in a given spacetime to mechanical systems, and for analyzing integrability of the systems. As applications, it is clarified whether
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dc7030f8fa21a35bdda778c21a27456
http://arxiv.org/abs/1709.07659
http://arxiv.org/abs/1709.07659
Autor:
Yoshiyuki Morisawa
Publikováno v:
Progress of Theoretical Physics Supplement. 179:209-215
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1f13906c4a28be65bf6222c67677b76
https://doi.org/10.1143/ptps.179.209
https://doi.org/10.1143/ptps.179.209
Publikováno v:
Progress of Theoretical Physics. 117:75-102
The gravitational collapse of a thick cylindrical shell of dust matter is investigated. It is found that a spacetime singularity forms on the symmetry axis and that it is necessarily naked, i.e., observable in principle. We propose a physically reaso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e7e69b00c40e9118b675f5a68fca5ff
https://doi.org/10.1143/ptp.117.75
https://doi.org/10.1143/ptp.117.75
Tensor generalizations of affine vector fields called symmetric and antisymmetric affine tensor fields are discussed as symmetry of spacetimes. We review the properties of the symmetric ones, which have been studied in earlier works, and investigate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5eb686e924eed9a29ede972a3d230eb2
http://arxiv.org/abs/1510.03538
http://arxiv.org/abs/1510.03538
We numerically study the dynamics of an imploding hollow cylinder composed of dust. Since there is no cylindrical black hole in 4-dimensional spacetime with physically reasonable energy conditions, a collapsed dust cylinder involves a naked singulari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0de543a818def61c52aead606e5cf656
http://arxiv.org/abs/0905.3968
http://arxiv.org/abs/0905.3968
Autor:
Misao Sasaki, Julio Oliva, Nathalie Deruelle, Yoshiyuki Morisawa, Ricardo Troncoso, Andrés Anabalón, David Tempo
Publikováno v:
Classical and Quantum Gravity
Classical and Quantum Gravity, IOP Publishing, 2009, 26, pp.065002. ⟨10.1088/0264-9381/26/6/065002⟩
Classical and Quantum Gravity, 2009, 26, pp.065002. ⟨10.1088/0264-9381/26/6/065002⟩
CLASSICAL AND QUANTUM GRAVITY
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Classical and Quantum Gravity, IOP Publishing, 2009, 26, pp.065002. ⟨10.1088/0264-9381/26/6/065002⟩
Classical and Quantum Gravity, 2009, 26, pp.065002. ⟨10.1088/0264-9381/26/6/065002⟩
CLASSICAL AND QUANTUM GRAVITY
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
As is well-known, Kerr-Schild metrics linearize the Einstein tensor. We shall see here that they also simplify the Gauss-Bonnet tensor, which turns out to be only quadratic in the arbitrary Kerr-Schild function f when the seed metric is maximally sym
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e3a2b55cb7e10959b275d95d4535fa6
http://hal.in2p3.fr/in2p3-00364225
http://hal.in2p3.fr/in2p3-00364225
Applying the G_{2(2)} generating technique for minimal D=5 supergravity to the Rasheed black hole solution, we present a new rotating charged Kaluza-Klein black hole solution to the five-dimensional Einstein-Maxwell-Chern-Simons equations. At infinit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0145273c49aa9afc04439f4cc683e697
We study the boundary value problem for asymptotically flat stationary black ring solutions to the five-dimensional vacuum Einstein equations. Assuming the existence of two additional commuting axial Killing vector fields and the horizon topology of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::766ae8fd89072c47fa294ef23e71c255
Autor:
Yoshiyuki Morisawa, Shinya Tomizawa, Daisuke Ida, Masashi Kimura, Hideki Ishihara, Ken Matsuno
The cosmological black hole solution on the Gibbons-Hawking space has been constructed. We also investigate the properties of this solution in the case of a single black hole. Unlike the Kastor-Traschen solution, which becomes static Reissner-Nortstr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad5944613c7e0950b3f2f5e230b16f66
We study stationary and axially symmetric two solitonic solutions of five dimensional vacuum Einstein equations by using the inverse scattering method developed by Belinski and Zakharov. In this generation of the solutions, we use five dimensional Mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::476bea6b6a589ac21d53cbc2f79498b8
http://arxiv.org/abs/hep-th/0512252
http://arxiv.org/abs/hep-th/0512252