Results 31 to 40 of about 846,182 (334)

Supersymmetric dS4 solutions in D = 11 supergravity

Journal of High Energy Physics, 2022
The necessary and sufficient conditions for warped product dS4 solutions in D = 11 supergravity to be supersymmetric are determined. The Killing spinor is associated with two possible stabilizer groups, SU(3) and G2.
M. Di Gioia, J. Gutowski
doaj   +1 more source

Complete Riemannian manifolds admitting a pair of Einstein-Weyl structures [PDF]

Mathematica Bohemica, 2016
We prove that a connected Riemannian manifold admitting a pair of non-trivial Einstein-Weyl structures $(g, \pmømega)$ with constant scalar curvature is either Einstein, or the dual field of $ømega$ is Killing.
Amalendu Ghosh
doaj   +1 more source

The Geometry of D=11 Null Killing Spinors [PDF]

, 2003
We determine the necessary and sufficient conditions on the metric and the four-form for the most general bosonic supersymmetric configurations of D=11 supergravity which admit a null Killing spinor i.e.
C.N. Gowdigere, D. Martelli, E.J. Hackett-Jones, H.S. Reall, J. Figueroa-O'Farrill, J. Gomis, J. Gutowski, J.B. Gutowski, J.M. Figueroa-O'Farrill, J.P. Gauntlett, J.P. Gauntlett, J.P. Gauntlett, J.P. Gauntlett, J.P. Gauntlett, J.P. Gauntlett, Jan B Gutowski, Jerome P Gauntlett, K. Becker, K.P. Tod, M.M. Caldarelli, P. Kaste, R. L. Bryant, S. Ivanov, S. Salamon, Stathis Pakis, T. Friedrich, T. Friedrich   +26 more
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Vacuum Interpretation for Supergravity M-Branes [PDF]

, 1999
A non-local classical duality between the three-block truncated 11D supergravity and the 8D vacuum gravity with two commuting Killing symmetries is established. The supergravity four-form field is generated via an inverse dualisation of the corresponding
Chen, Chiang-Mei, Gal'tsov, Dmitri V., Sharakin, Sergei A.   +2 more
core   +2 more sources

Killing vector fields and harmonic forms [PDF]

Transactions of the American Mathematical Society, 1974
The paper is concerned with harmonic ( p , q ) (p,q) -forms on compact Kähler manifolds which admit Killing vector fields with discrete zero sets. Let h p , q {h^{p,q}} denote the dimension of the space of ...
openaire   +1 more source

Progress for the development of antibacterial surface based on surface modification technology

Supramolecular Materials, 2022
With the increasing requirement for antibacterial surface especially in biomedical apparatus, constructing the new material surface with bactericidal activity for combating the infection caused by multi-resistant microbials possesses great significance ...
Lin Huang, Chuan-Jun Liu
doaj   +1 more source

Asymptotic symmetries on Killing horizons [PDF]

, 2001
We investigate asymptotic symmetries regularly defined on spherically symmetric Killing horizons in the Einstein theory with or without the cosmological constant.
A. Ashtekar, A. Ashtekar, A. Ashtekar, A. Ashtekar, A. Ashtekar, A. Ashtekar, A. Strominger, A. Strominger, E. Witten, G.W. Gibbons, G.W. Gibbons, H. Bondi, I. Racz, J. Lee, J. Maldacena, J. Maldacena, J.D. Brown, Jun-ichirou Koga, M-I. Park, M. Hotta, N. D. Birrell, O. Aharony, O. Dreyer, R.K. Sachs, R.K. Sachs, R.M. Wald, S. Carlip, S. Carlip, S. Carlip, S. Carlip, S. Hawking, S.A. Hayward, S.A. Hayward, S.A. Hayward, S.N. Solodukhin, S.S. Gubser, S.W. Hawking, V. Iyer, V. Iyer   +38 more
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Killing superalgebras for lorentzian five-manifolds

Journal of High Energy Physics, 2021
We calculate the relevant Spencer cohomology of the minimal Poincaré superalgebra in 5 spacetime dimensions and use it to define Killing spinors via a connection on the spinor bundle of a 5-dimensional lorentzian spin manifold.
Andrew Beckett, José Figueroa-O’Farrill   +1 more
doaj   +1 more source

A Criminological Study of the Meseritz-Obrawalde Nurses During the Second Euthanasia Phase

Contemporary Challenges, 2023
The euthanasia programme was established by the Nazi government in 1939 and lasted until the end of the Second World War in 1945. The programme took form as either killing centres or psychiatric institutions, situated all over Nazi Germany and its ...
Lilli Mathilde Sofie Wolland Blomberg
doaj   +1 more source

Computation of the conformal algebra of 1+3 decomposable spacetimes [PDF]

, 1998
The conformal algebra of a 1+3 decomposable spacetime can be computed from the conformal Killing vectors (CKV) of the 3-space. It is shown that the general form of such a 3-CKV is the sum of a gradient CKV and a Killing or homothetic 3-vector.
Capocci M S, Choquet-Bruhat Y, Dimitris Nikolopoulos, Maartens R, Michael Tsamparlis, Pantelis S Apostolopoulos, Petrov A Z, Rebouças M J   +7 more
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