707 citations
- Institut des Hautes Études ScientifiquesFR42 papers
- Ludwig-Maximilians-Universität MünchenDE34 papers
- Centre National de la Recherche ScientifiqueFR27 papers
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- University of CambridgeGB18 papers
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- University of MichiganUS15 papers
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11 papers · 1 filter
Counter-rotating stellar discs around a massive black hole: self-consistent, time-dependent dynamics
Jihad R. Touma, S. Sridhar
We formulate the collisionless Boltzmann equation (CBE) for dense star clusters that lie within the radius of influence of a massive black hole in galactic nuclei. Our approach to…
Einstein Weyl Structures and de Sitter Supergravity
Jan B. Gutowski, Alberto Palomo-Lozano, W. A. Sabra
The geometric structure of the null solutions of de Sitter D=5 gauged supergravity coupled to vector multiplets is investigated. These solutions are Kundt metrics, constructed from…
Small Horizons
J. B. Gutowski, D. Klemm, W. A. Sabra +1
All near horizon geometries of supersymmetric black holes in a N=2, D=5 higher-derivative supergravity theory are classified. Depending on the choice of near-horizon data we find t…
Cosmological solutions with massive gravitons
Ali H. Chamseddine, Mikhail S. Volkov
We present solutions describing spatially closed, open, or flat cosmologies in the massive gravity theory within the recently proposed tetrad formulation. We find that the effect o…
Weighted isoperimetric inequalities in cones and applications
Friedemann Brock, Francesco Chiacchio, Anna Mercaldo
This paper deals with weighted isoperimetric inequalities relative to cones of . We study the structure of measures that admit as isoperimetric sets the intersectio…
The Rubakov-Callan Scattering on the Supergravity Monopole
Ali H. Chamseddine, Mikhail S. Volkov
We study small perturbations around the supersymmetric CVMN monopole solution of the gauged supergravity in D=4. We find that the perturbation spectrum contains an infinite tower o…