Results 41 to 50 of about 129,807 (319)

Algebraic Representation of Topologies on a Finite Set

open access: yesMathematics, 2022
Since the 1930s, topological counting on finite sets has been an interesting work so as to enumerate the number of corresponding order relations on the sets.
Hongfeng Guo   +3 more
doaj   +1 more source

ARENS REGULARITY OF PROJECTIVE TENSOR PRODUCT

open access: yes, 2021
In this paper, we study approximate identity properties, some propositions from Baker, Dales, Lau in general situations and we establish some relationships between the topological centers of module actions and factorization properties with some results ...
M. S. Kojanaghi, K. Azar
semanticscholar   +1 more source

Hybrid Berezinskii-Kosterlitz-Thouless and Ising topological phase transition in the generalized two-dimensional XY model using tensor networks [PDF]

open access: yes, 2020
In tensor network representation, the partition function of a generalized two-dimensional XY spin model with topological integer and half-integer vortex excitations is mapped to a tensor product of one-dimensional quantum transfer operator, whose ...
F. Song, Guang-Ming Zhang
semanticscholar   +1 more source

Boson condensation and instability in the tensor network representation of string-net states [PDF]

open access: yes, 2018
The tensor network representation of many-body quantum states, given by local tensors, provides a promising numerical tool for the study of strongly correlated topological phases in two dimension. However, tensor network representations may be vulnerable
Chen, Xie   +3 more
core   +3 more sources

Invertible defects and isomorphisms of rational CFTs [PDF]

open access: yes, 2010
Given two two-dimensional conformal field theories, a domain wall —or defect line— between them is called invertible if there is another defect with which it fuses to the identity defect.
Davydov, Alexei   +2 more
core   +3 more sources

Twisted string theory in anti-de Sitter space

open access: yesJournal of High Energy Physics, 2020
We construct a string theory in three-dimensional anti-de Sitter space-time that is independent of the boundary metric. It is a topologically twisted theory of quantum gravity. We study string theories with an asymptotic N = 2 superconformal symmetry and
Songyuan Li, Jan Troost
doaj   +1 more source

Fermionic projected entangled-pair states and topological phases [PDF]

open access: yes, 2017
We study fermionic matrix product operator algebras and identify the associated algebraic data. Using this algebraic data we construct fermionic tensor network states in two dimensions that have non-trivial symmetry-protected or intrinsic topological ...
Bultinck, Nick   +3 more
core   +3 more sources

A Mysterious Tensor Product in Topology

open access: yes, 2022
We describe the construction of the tensor product of topological operads introduced by Boardman and Vogt, and explain some questions about it that have been puzzling Vogt and others for many years.
openaire   +3 more sources

Existence of a Bilinear Differential Realization in the Constructions of Tensor Product of Hilbert Spaces

open access: yesWSEAS Transactions on Mathematics, 2020
The paper describes the results of a functional-geometric study of the necessary and sufficient conditions for the existence of a differential realization in the terms of the tensor product of real Hilbert spaces. There are considered continuous infinite-
A. Daneev, A. Lakeyev, V. Rusanov
semanticscholar   +1 more source

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