Results 21 to 30 of about 67,338 (298)

Topological entanglement and hyperbolic volume

open access: yesJournal of High Energy Physics, 2021
The entanglement entropy of many quantum systems is difficult to compute in general. They are obtained as a limiting case of the Rényi entropy of index m, which captures the higher moments of the reduced density matrix.
Aditya Dwivedi   +4 more
doaj   +1 more source

The complement of the figure-eight knot geometrically bounds [PDF]

open access: yes, 2016
We show that some hyperbolic 3-manifolds which are tessellated by copies of the regular ideal hyperbolic tetrahedron embed geodesically in a complete, finite volume, hyperbolic 4-manifold.
Slavich, Leone
core   +2 more sources

Curved momentum spaces from quantum groups with cosmological constant

open access: yesPhysics Letters B, 2017
We bring the concept that quantum symmetries describe theories with nontrivial momentum space properties one step further, looking at quantum symmetries of spacetime in presence of a nonvanishing cosmological constant Λ. In particular, the momentum space
Á. Ballesteros   +3 more
doaj   +1 more source

Almost Kenmotsu 3-h-manifolds with transversely Killing-type Ricci operators

open access: yesOpen Mathematics, 2020
In this paper, it is proved that the Ricci operator of an almost Kenmotsu 3-h-manifold M is of transversely Killing-type if and only if M is locally isometric to the hyperbolic 3-space ℍ3(−1){{\mathbb{H}}}^{3}(-1) or a non-unimodular Lie group endowed ...
Pan Quanxiang, Wu Hui, Wang Yajie
doaj   +1 more source

Homotopy hyperbolic 3-manifolds are virtually hyperbolic [PDF]

open access: yesJournal of the American Mathematical Society, 1994
If a closed 3-manifold is virtually hyperbolic (finitely covered by a hyperbolic manifold) then it is irreducible, and it is an easy consequence of Mostow rigidity that it is also homotopy hyperbolic (homotopy equivalent to a hyperbolic 3-manifold). This paper establishes the converse.
openaire   +2 more sources

Verified Computations for Hyperbolic 3-Manifolds [PDF]

open access: yesExperimental Mathematics, 2015
For a given cusped 3-manifold $M$ admitting an ideal triangulation, we describe a method to rigorously prove that either $M$ or a filling of $M$ admits a complete hyperbolic structure via verified computer calculations. Central to our method are an implementation of interval arithmetic and Krawczyk's Test. These techniques represent an improvement over
Hoffman, N.   +5 more
openaire   +3 more sources

Ends of Hyperbolic 3-Manifolds [PDF]

open access: yesJournal of the American Mathematical Society, 1993
Let N = H 3 / Γ N = {{\mathbf {H}}^3}/\Gamma be a hyperbolic 3 3 -manifold which is homeomorphic to the interior of a compact 3 3 -manifold.
openaire   +1 more source

Margulis numbers for Haken manifolds [PDF]

open access: yes, 2011
For every closed hyperbolic Haken 3-manifold and, more generally, for any hyperbolic 3-manifold M which is homeomorphic to the interior of a Haken manifold, the number 0.286 is a Margulis number.
B. Shalen, Marc Culler, Peter
core   +1 more source

Supersymmetric AdS$$_2\times \Sigma _2$$ 2×Σ2 solutions from tri-sasakian truncation

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
A class of $$\mathrm{AdS}_2\times \Sigma _2$$ AdS2×Σ2 , with $$\Sigma _2$$ Σ2 being a two-sphere or a hyperbolic space, solutions within four-dimensional $$N=4$$ N=4 gauged supergravity coupled to three-vector multiplets with dyonic gauging is identified.
Parinya Karndumri
doaj   +1 more source

Minimal Surfaces in Hyperbolic 3‐Manifolds [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2020
AbstractWe show the existence of smoothly embedded closed minimal surfaces in infinite volume hyperbolic 3‐manifolds except for some special cases.
openaire   +2 more sources

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