Results 1 to 10 of about 92,915 (167)

Topological Space-Time Crystal

open access: yesPhysical Review Letters, 2022
We introduce a new class of out-of-equilibrium noninteracting topological phases, the topological space-time crystals. These are time-dependent quantum systems which do not have discrete spatial translation symmetries, but instead are invariant under ...
Yang Peng
exaly   +3 more sources

On the Structure of Topological Spaces [PDF]

open access: yesAxioms, 2022
The structure of topological spaces is analysed here through the lenses of fibrous preorders. Each topological space has an associated fibrous preorder and those fibrous preorders which return a topological space are called spatial. A special class of spatial fibrous preorders consisting of an interconnected family of preorders indexed by a unitary ...
openaire   +3 more sources

Cycle spaces in topological spaces [PDF]

open access: yesJournal of Graph Theory, 2008
AbstractWe develop a general model of edge spaces in order to generalize, unify, and simplify previous work on cycle spaces of infinite graphs. We give simple topological criteria to show that the fundamental cycles of a (generalization of a) spanning tree generate the cycle space in a connected, compact, weakly Hausdorff edge space.
Antoine Vella, R. Bruce Richter
openaire   +1 more source

Hyperspaces of topological vector spaces: their embedding in topological vector spaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
Let L L be a real (Hausdorff) topological vector space. The space
Prem Prakash, Murat R. Sertel
openaire   +3 more sources

Summability in topological spaces

open access: yesApplied Mathematics Letters, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hüseyin Çakalli, M. K. Khan
openaire   +4 more sources

Topological Quantum Field Theory and the Geometric Langlands Correspondence [PDF]

open access: yes, 2013
In the pioneering work of A. Kapustin and E. Witten, the geometric Langlands program of number theory was shown to be intimately related to duality of GL-twisted N=4 super Yang-Mills theory compactified on a Riemann surface. In this thesis, we generalize
Setter, Kevin Luke
core   +1 more source

Topological Structures on DMC Spaces † [PDF]

open access: yesEntropy, 2017
Two channels are said to be equivalent if they are degraded from each other. The space of equivalent channels with input alphabet X and output alphabet Y can be naturally endowed with the quotient of the Euclidean topology by the equivalence relation.
openaire   +6 more sources

Discretization of Topological Spaces [PDF]

open access: yesThe Quarterly Journal of Mathematics, 2016
19 ...
Amini, Massoud, Golestani, Nasser
openaire   +2 more sources

Topological Rough Groups

open access: yes, 2016
The concept of topological group is a simple combination of the concepts of abstract group and topological space. The purpose of this paper is to combine the concepts of topological space and rough groups; called topological rough groups on an ...
Içen, I., Baǧlrmaz, N., Özcan, A.F.
core   +2 more sources

GTI-space : the space of generalized topological indices

open access: yes, 2008
A new extension of the generalized topological indices (GTI) approach is carried out torepresent 'simple' and 'composite' topological indices (TIs) in an unified way.
Matamala, A.R.   +5 more
core   +1 more source

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