Results 1 to 10 of about 509,042 (182)

On the gamma spectrum of multiplication gamma acts

open access: yesKuwait Journal of Science, 2021
In this paper we introduce the concept of topological gamma act as a generalization of Zariski   topology .  Some topological   properties of  this topology   are studied.
Mehdi S. Abbas, Samer A. Jubair
doaj   +1 more source

Constructions and Properties of Quasi Sigma-Algebra in Topological Measure Space

open access: yesAxioms, 2022
The topological views of a measure space provide deep insights. In this paper, the sigma-set algebraic structure is extended in a Hausdorff topological space based on the locally compactable neighborhood systems without considering strictly (metrized ...
Susmit Bagchi
doaj   +1 more source

Topological nodal line semimetals in holography

open access: yesJournal of High Energy Physics, 2018
We show a holographic model of a strongly coupled topological nodal line semimetal (NLSM) and find that the NLSM phase could go through a quantum phase transition to a topologically trivial state.
Yan Liu, Ya-Wen Sun
doaj   +1 more source

Topological invariants for holographic semimetals

open access: yesJournal 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

New Types of Topologies and Neutrosophic Topologies (Improved Version) [PDF]

open access: yesNeutrosophic Sets and Systems, 2023
In this paper we recall the six new types of topologies, and their corresponding topological spaces, that we introduced in the last years (2019-20223), such as: NeutroTopology, AntiTopology, Refined Neutrosophic Topology, Refined Neutrosophic Crisp ...
Florentin Smarandache
doaj   +1 more source

Countable Fuzzy Topological Space and Countable Fuzzy Topological Vector Space

open access: yesJournal 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
doaj   +1 more source

A New Perspective On Soft Topology

open access: yesHittite 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
doaj   +1 more source

The non-existence of a universal topological type space [PDF]

open access: yes, 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
core   +1 more source

Entropy and induced dynamics on state spaces [PDF]

open access: yes, 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
core   +1 more source

On Cubic Interval Vague Sets and Cubic Interval Vague Topological Spaces

open access: yesScience 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
doaj   +1 more source

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