Results 41 to 50 of about 4,879,805 (235)
Soft ideal topological space and mixed fuzzy soft ideal topological space
Boletim da Sociedade Paranaense de Matemática, 2019 In this paper we introduce fuzzy soft ideal and mixed fuzzy soft ideal topological spaces and some properties of this space. Also we introduce fuzzy soft $I$-open set, fuzzy soft $\alpha$-$I$-open set, fuzzy soft pre-$I$-open set, fuzzy soft semi-$I ...
Manash Borah, Bipan Hazarika
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The topology of spaces of polygons [PDF]
Transactions of the American Mathematical Society, 2012 Let E d ( ℓ ) E_{d}(\ell ) denote the space of all closed n n -gons in R d \mathbb {R}^{d} (where d ≥ 2 d\ge 2 ) with sides of length
Viktor Fromm, Michael Farber
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ON METACOMPACTNESS IN TOPOLOGICAL SPACES
INTERNATIONAL JOURNAL OF MATHEMATICS AND COMPUTER RESEARCH, 2023 In this work, we intend to study metacompact spaces and locally metacompact spaces,and study their properties and their relations with order topological spaces.Several examples are discussed and many wellknown theorems are generalized concerning metacompact [7, 2, 8, 3, 4, 56].
M.Rousan, Mohammad, Oudetallah, Jamal
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Magnetic topological quantum chemistry [PDF]
Nature Communications, 2020 For over 100 years, the group-theoretic characterization of crystalline solids has provided the foundational language for diverse problems in physics and chemistry.
Benjamin J. Wieder +6 more
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Topological 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
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Relative Smooth Topological Spaces
Advances 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
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Closed subsets of compact-like topological spaces
Applied General Topology, 2020 We investigate closed subsets (subsemigroups, resp.) of compact-like topological spaces (semigroups, resp.). We show that each Hausdorff topological space is a closed subspace of some Hausdorff ω-bounded pracompact topological space and describe open ...
Serhii Bardyla, Alex Ravsky
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Topological Band Theory for Non-Hermitian Hamiltonians. [PDF]
Physical Review Letters, 2017 We develop the topological band theory for systems described by non-Hermitian Hamiltonians, whose energy spectra are generally complex. After generalizing the notion of gapped band structures to the non-Hermitian case, we classify "gapped" bands in one ...
Huitao Shen, B. Zhen, L. Fu
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Topological Insulators in Twisted Transition Metal Dichalcogenide Homobilayers. [PDF]
Physical Review Letters, 2018 We show that moiré bands of twisted homobilayers can be topologically nontrivial, and illustrate the tendency by studying valence band states in ±K valleys of twisted bilayer transition metal dichalcogenides, in particular, bilayer MoTe_{2}.
Fengcheng Wu +5 more
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Soft topological space and topology on the Cartesian product
, 2016 The paper deals with a soft topological space which is dened over an initial universe set U with a xed set of parameters E . The main goal is to point out that any soft topological space is homeomorphic to a topological space $( E \times U, \tau )$ where
Matejdes Milan
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