Results 1 to 10 of about 14,022 (163)

Entropy of Closure Operators and Network Coding Solvability

open access: yesEntropy, 2014
The entropy of a closure operator has been recently proposed for the study of network coding and secret sharing. In this paper, we study closure operators in relation to their entropy. We first introduce four different kinds of rank functions for a given
Maximilien Gadouleau
doaj   +3 more sources

Transcatheter closure of PDA: how the pathway changed from classical fluoroscopy approach [PDF]

open access: yesFrontiers in Cardiovascular Medicine
Patent ductus arteriosus (PDA) is a common congenital cardiac defect traditionally managed by surgical and transcatheter closure under fluoroscopic guidance. Over recent years, significant advances in imaging modalities, device technology, and procedural
Sisca Natalia Siagian   +2 more
doaj   +2 more sources

Sobre o operador de fecho, um conceito que permeia muitos e distintos tópicos matemáticos

open access: yesIntermaths, 2022
We present the closure operators and detach several distinct topics of mathematics in which we can observe the action of these closure operators. So, we can see these operators as a trans-topic concept. Considering that these mathematics theories can be
Hércules de Araujo Feitosa
doaj   +3 more sources

Attribute Reduction from Closure Operators and Matroids in Rough Set Theory [PDF]

open access: yesLecture Notes in Computer Science, 2020
Chris Cornelis   +2 more
exaly   +1 more source

Internal Neighbourhood Structures II: Closure and closed morphisms [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2023
Internal preneighbourhood spaces inside any finitely complete category with finite coproducts and proper factorisation structure were first introduced in \cite{2020}.
Partha Pratim Ghosh
doaj   +1 more source

Applications of operations on generalized topological spaces [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
In this paper γµ -open sets and γµ -closed sets in a GTS (X, µ) have been studied, where γµ is an operation from µ to P(X). In general, collection of γµ -open sets is smaller than the collection of µ-open sets. The condition under which both are
B. Roy, T. Noiri
doaj   +3 more sources

Classes of algebras and closure operations [PDF]

open access: yesCommunications in Algebra, 2021
The calculus of classes and closure operations has proved to be a useful tool in group theory and has led to a deep theory in the study of finite soluble groups. More recently, parallel theories have started to be developed in various varieties of algebras, such as Lie, Leibniz, and Malcev algebras.
I. S. Gutierrez   +2 more
openaire   +3 more sources

Implicative Closure Operators [PDF]

open access: yesInternational Journal of Fuzzy Logic and Intelligent Systems, 2008
In this paper, we investigate the properties of implicative closure operators on the stsc-quantale L. We find implicative closure operators induced by a function.
Yong Chan Kim, Jung Mi Ko
openaire   +2 more sources

Improved inclusion-exclusion identities via closure operators [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2000
Let (A v) v ∈ V be a finite family of sets. We establish an improved inclusion-exclusion identity for each closure operator on the power set of V having the unique base property.
Klaus Dohmen
doaj   +2 more sources

Connectivity with respect to α-discrete closure operators

open access: yesOpen Mathematics, 2022
We discuss certain closure operators that generalize the Alexandroff topologies. Such a closure operator is defined for every ordinal α>0\alpha \gt 0 in such a way that the closure of a set AA is given by closures of certain α\alpha -indexed sequences ...
Šlapal Josef
doaj   +1 more source

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