Results 31 to 40 of about 5,897,592 (221)

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

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

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

A new approach to nearly paracompact spaces

open access: yesМатематичні 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

Space-time Uncertainty Principle from Breakdown of Topological Symmetry [PDF]

open access: yes, 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
core   +3 more sources

On the Structure of Topological Spaces

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.
Nelson Martins-Ferreira
doaj   +1 more source

Relative Smooth Topological Spaces

open access: yesAdvances in Fuzzy Systems, 2009
In 1992, Ramadan introduced the concept of a smooth topological space and relativeness between smooth topological space and fuzzy topological space in Chang's (1968) view points. In this paper we give a new definition of smooth topological space.
B. Ghazanfari
doaj   +1 more source

Topological Rough Groups

open access: yesTopological Algebra and its Applications, 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 ...
Bağırmaz Nurettin   +2 more
doaj   +1 more source

On soft topological space via semiopen and semiclosed soft sets [PDF]

open access: yes, 2012
This paper introduces semiopen and semiclosed soft sets in soft topological spaces. The notions of interior and closure are generalized using these sets.
J. Mahanta, P. Das
semanticscholar   +1 more source

Type space on a purely measurable parameter space [PDF]

open access: yes, 2005
Several game theoretical topics require the analysis of hierarchical beliefs, particularly in incomplete information situations. For the problem of incomplete information, Hars´anyi suggested the concept of the type space.
Pintér, Miklós
core   +1 more source

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