Results 1 to 10 of about 540,946 (97)

Regular spherical dust spacetimes [PDF]

, 1998
Physical (and weak) regularity conditions are used to determine and classify all the possible types of spherically symmetric dust spacetimes in general relativity. This work unifies and completes various earlier results.
A Papapetrou, C Hellaby, CW Misner, D Kramer, David R. Matravers, E Kamke, F Fayos, GA Burnett, GFR Ellis, H Bondi, K Lake, Neil P. Humphreys, Roy Maartens, WB Bonnor   +13 more
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Bad Wadge-like reducibilities on the Baire space [PDF]

, 2013
We consider various collections of functions from the Baire space X into itself naturally arising in (effective) descriptive set theory and general topology, including computable (equivalently, recursive) functions, contraction mappings, and functions ...
Ros, Luca Motto
core   +2 more sources

Soap Bubbles in Outer Space: Interaction of a Domain Wall with a Black Hole [PDF]

, 1998
We discuss the generalized Plateau problem in the 3+1 dimensional Schwarzschild background. This represents the physical situation, which could for instance have appeared in the early universe, where a cosmic membrane (thin domain wall) is located near a
A. L. Larsen, A. Vilenkin, B. Carter, C. Gundlach, C.T. Hill, J. Guven, K.S. Thorne, M. Christensen, M.W. Choptuik, M.W. Choptuik, P.A.M. Dirac, P.R. Brady, R.M. Wald, S. Hod, T.W.B. Kibble, V. P. Frolov, V.P. Frolov, V.P. Frolov, V.P. Frolov, V.P. Frolov, Y.B. Zeldovich   +20 more
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Topological classification of dynamical phase transitions [PDF]

, 2014
Dynamical phase transitions (DPT) are characterized by nonanalytical time evolution of the dynamical free energy. For general 2-band systems in one and two dimensions (eg.
Dóra, Balázs, Vajna, Szabolcs
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The Type-problem on the Average for random walks on graphs [PDF]

, 2000
When averages over all starting points are considered, the Type Problem for the recurrence or transience of a simple random walk on an inhomogeneous network in general differs from the usual "local" Type Problem.
Burioni, R., Cassi, D., Vezzani, A.
core   +1 more source

Scaling of magnetic monopoles in the pure compact QED [PDF]

, 1999
In the pure U(1) lattice gauge theory with the Villain action we find that the monopole mass in the Coulomb phase and the monopole condensate in the confinement phase scale according to simple power laws.
Barber, Barber, Bode, Bornyakov, Damm, Di Giacomo, Di Giacomo, H. Pfeiffer, J. Jersák, Jersák, Jersák, Kerler, Kleinert, Polley, T. Neuhaus   +14 more
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Coarsening of Two Dimensional Foam on a Dome [PDF]

, 2012
In this paper we report on bubble growth rates and on the statistics of bubble topology for the coarsening of a dry foam contained in the narrow gap between two hemispheres.
A. E. Roth, C. D. Jones, D. J. Durian, D. Weaire, G. Kellaway, J. von Neumann   +5 more
core   +4 more sources

Interplay of real space and momentum space topologies in strongly correlated fermionic systems

, 2000
We discuss the momentum-space topology of 3+1 and 2+1 strongly correlated fermionic systems. For the 3+1 systems the important universality class is determined by the topologically stable Fermi points in momentum space. In the extreme limit of low energy
Volovik, G. E.
core   +1 more source

Black strings with negative cosmological constant: inclusion of electric charge and rotation [PDF]

, 2007
We generalize the vacuum static black strings with negative cosmological constant recently discussed in literature, by including an electromagnetic field.
Astefanesei D, Astefanesei D, Astefanesei D, Awad A M, Bastianelli F, Bastianelli F, Caldarelli M M, Charmousis C, Copsey K, Cristian Stelea, Cvetic M, Das S, Elvang H, Eugen Radu, Gubser S S, Hawking S W, Henningson M, Maldacena J M, Mann R, Mann R B, Witten E, Witten E, Yves Brihaye   +22 more
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Predicting criticality and dynamic range in complex networks: effects of topology

, 2010
The collective dynamics of a network of coupled excitable systems in response to an external stimulus depends on the topology of the connections in the network.
Daniel B. Larremore, J. M. Beggs, Juan G. Restrepo, P. Erdős, R. T. Gray, Woodrow L. Shew   +5 more
core   +1 more source