Results 41 to 50 of about 5,381,971 (370)
Topological flat bands in frustrated kagome lattice CoSn [PDF]
Nature Communications, 2020 Electronic flat bands in momentum space, arising from strong localization of electrons in real space, are an ideal stage to realize strongly-correlated phenomena.
Mingu Kang +10 more
semanticscholar +1 more source
Topological invariants for holographic semimetals
Journal of High Energy Physics, 2018 We study the behavior of fermion spectral functions for the holographic topological Weyl and nodal line semimetals. We calculate the topological invariants from the Green functions of both holographic semimetals using the topological Hamiltonian method ...
Yan Liu, Ya-Wen Sun
doaj +1 more source
Countable Fuzzy Topological Space and Countable Fuzzy Topological Vector Space
Journal of Mathematical and Fundamental Sciences, 2015 This paper deals with countable fuzzy topological spaces, a generalization of the notion of fuzzy topological spaces. A collection of fuzzy sets F on a universe X forms a countable fuzzy topology if in the definition of a fuzzy topology, the condition of
Apu Kumar Saha, Debasish Bhattacharya
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A New Perspective On Soft Topology
Hittite Journal of Science and Engineering, 2018 In this paper, we approach the concept of soft topology with a different perspective. We define a soft topological space over given initial topological universe as a parameterization of subspaces of a topological space.
Mustafa Burç Kandemir
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The non-existence of a universal topological type space [PDF]
, 2010 The concept of types was introduced by Harsányi[8]. In the literature there are two approaches for formalizing types, type spaces: the purely measurable and the topological models.
Aumann +15 more
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A new approach to nearly paracompact spaces
Математичні Студії, 2023 The pre-open sets are a generalization of open sets of topological spaces. In this paper, we introduce and study a notion of po-paracompact spaces via pre-open sets on topological spaces.
A. Mukharjee
doaj +1 more source
Entropy and induced dynamics on state spaces [PDF]
, 2004 We consider the topological entropy of state space and quasi-state space homeomorphisms induced from C*-algebra automorphisms. Our main result asserts that, for automorphisms of separable exact C*-algebras, zero Voiculescu-Brown entropy implies zero ...
Kerr, David
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On Cubic Interval Vague Sets and Cubic Interval Vague Topological Spaces
Science Journal of University of Zakho, 2022 advance a modern extension formation of cubic vague sets identified as cubic interval vague sets (CIVSs). similarly describe the idea of cubic interval vague sets (ICIVSs) cubic interval vague sets (ECIVSs) by examples debate their exciting ...
Arsalan Shareef Haji +1 more
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On the Weight of a Topological Space [PDF]
Proceedings of the American Mathematical Society, 1974 The main result in this paper states that the weight of a regular space is the product of three cardinal functions, namely the Lindelöf degree, the pluming degree, and the point separating weight.
openaire +1 more source
Space-time Uncertainty Principle from Breakdown of Topological Symmetry [PDF]
, 1997 Starting from topological quantum field theory, we derive space-time uncertainty relation with respect to the time interval and the spatial length proposed by Yoneya through breakdown of topological symmetry in the large N matrix model.
Banks T. +3 more
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