Results 11 to 20 of about 26,306 (212)

Generalized thermodynamics and kinetic equations: Boltzmann, Landau, Kramers and Smoluchowski [PDF]

, 2003
We propose a formal extension of thermodynamics and kinetic theories to a larger class of entropy functionals. Kinetic equations associated to Boltzmann, Fermi, Bose and Tsallis entropies are recovered as a special case.
Chavanis, Pierre-Henri
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Magic Supergravities, N= 8 and Black Hole Composites [PDF]

, 2006
We present explicit U-duality invariants for the R, C, Q, O$ (real, complex, quaternionic and octonionic) magic supergravities in four and five dimensions using complex forms with a reality condition.
B. A. Rozenfeld, Eric G. Gimon, H. Freudenthal, J. Tits, R. Gilmore, Renata Kallosh, S. Helgason, Sergio Ferrara   +7 more
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Invariant measures of the 2D Euler and Vlasov equations [PDF]

, 2010
We discuss invariant measures of partial differential equations such as the 2D Euler or Vlasov equations. For the 2D Euler equations, starting from the Liouville theorem, valid for N-dimensional approximations of the dynamics, we define the ...
Chavanis P H, Chavanis P H Campa A Giansanti A Morigi G Labini F S, Courant R, Dauxois T, Eyink G, Freddy Bouchet, Holm D D Marsden J E Ratiu T S, Kiessling M K-H Campa A Giansanti A Morigi G Labini F S, Kraichnan R H, Lee T D, Lynden-Bell D, Marianne Corvellec, Mattingly J C Sinai Y G, Mouhot C Villani C, Robert R, Rockafellar R T, Salmon R, Spohn H   +17 more
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Black Holes and Large Order Quantum Geometry [PDF]

, 2007
We study five-dimensional black holes obtained by compactifying M theory on Calabi-Yau threefolds. Recent progress in solving topological string theory on compact, one-parameter models allows us to test numerically various conjectures about these black ...
Albrecht Klemm, Alireza Tavanfar, C. Bender, C. Vafa, K. Oguiso, Marcos Mariño, Min-xin Huang, R. Dijkgraaf, S. Katz, S. H. Shenker   +9 more
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Intersecting Attractors [PDF]

, 2008
We apply the entropy formalism to the study of the near-horizon geometry of extremal black p-brane intersections in D>5 dimensional supergravities.
A. Salam, Alessio Marrani, D. Z. Freedman, Henning Samtleben, Jose F. Morales, M. R. Garousi, S. Bellucci, S. Bellucci, Sergio Ferrara   +8 more
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Unconstrained Hamiltonian formulation of General Relativity with thermo-elastic sources [PDF]

, 1998
A new formulation of the Hamiltonian dynamics of the gravitational field interacting with(non-dissipative) thermo-elastic matter is discussed. It is based on a gauge condition which allows us to encode the six degrees of freedom of the ``gravity + matter'
Anile A M, Arnowitt R, Bressan A, Carter B, Carter B, Cattaneo C, Comer G L, Comer G L, Courant R, De Witt B, Giulio Magli, Glass E N, Haensel P, Hajicek P, Holm D, Iacoviello D, Jerzy Kijowski, Jezierski J, Kijowski J, Kijowski J, Kijowski J, Kijowski J, Kuchar K V, Künzle H P, Maugin G A, Maugin G A, Maugin G A, Maugin G A, Maugin G A, Shapiro S L, Souriau J M, Truesdell C   +31 more
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Space-Time Complexity in Hamiltonian Dynamics

, 2003
New notions of the complexity function C(epsilon;t,s) and entropy function S(epsilon;t,s) are introduced to describe systems with nonzero or zero Lyapunov exponents or systems that exhibit strong intermittent behavior with ``flights'', trappings, weak ...
Brudno A. A., Dinaburg E. I., G. M. Zaslavsky, Kolmogorov A. N., Malkin M. I., Milnor J., Tikhomirov V. M., V. Afraimovich   +7 more
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First Order Description of Black Holes in Moduli Space [PDF]

, 2007
We show that the second order field equations characterizing extremal solutions for spherically symmetric, stationary black holes are in fact implied by a system of first order equations given in terms of a prepotential W.
A. Ceresole, A. Dabholkar, A. Dabholkar, A. Giryavets, A.W. Peet, B. Pioline, Emanuele Orazi, K. Goldstein, L. Andrianopoli, Laura Andrianopoli, Mario Trigiante, P.K. Tripathy, R. D'Auria, R. Kallosh, R. Kallosh, R. Kallosh, Riccardo D'Auria   +16 more
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Entropies, volumes, and Einstein metrics

, 2013
We survey the definitions and some important properties of several asymptotic invariants of smooth manifolds, and discuss some open questions related to them.
A Manning, A Sambusetti, AL Besse, B Hanke, D Kotschick, D Kotschick, D Kotschick, D Kotschick, F Ledrappier, G Besson, G. Besson, GP Paternain, GP Paternain, GP Paternain, J Milnor, J. Kedra, JA Hillman, L Bessières, M Brunnbauer, M. Brunnbauer, M. Gromov, NJ Hitchin, P Ozsváth, R Fintushel, S Bauer, S Bauer   +25 more
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Constitutive equations and wave propagation in Green\u2013Naghdi type II and III thermoelectroelasticity [PDF]

, 2016
In this article we extend the theory of thermoelasticity devised by Green and Naghdi to the framework of finite thermoelectroelasticity. Both isotropic and transversely isotropic bodies are considered and thermodynamic restrictions on their constitutive ...
Ambiente e., Territorio, Arcitettura e., di Matematica, Dipartimento di Ingegneria, Civile, Dipartimento di Matematica, University of Padua, Giorgi, Claudio, Montanaro, Adriano, University of, Brescia   +6 more
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