Results 21 to 30 of about 54,001 (265)

Kinds of Pregeometries of Acyclic Theories

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
The article is devoted to the description of types of pregeometries with an algebraic closure operator for acyclic theories. In these theories we describe conditions of violation of the exchange property for a pregeometry.
S. B. Malyshev
doaj   +1 more source

Meet-distributive lattices have the intersection property [PDF]

open access: yesMathematica Bohemica, 2023
This paper is an erratum of H. Mühle: Distributive lattices have the intersection property, Math. Bohem. (2021). Meet-distributive lattices form an intriguing class of lattices, because they are precisely the lattices obtainable from a closure operator ...
Henri Mühle
doaj   +1 more source

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

Orthomodular Lattices Induced by the Concurrency Relation [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2009
We apply to locally finite partially ordered sets a construction which associates a complete lattice to a given poset; the elements of the lattice are the closed subsets of a closure operator, defined starting from the concurrency relation. We show that,
Luca Bernardinello   +2 more
doaj   +1 more source

On a New Subclass of Univalent Harmonic Functions That Defined by Integral Operator

open access: yesJournal of Kufa for Mathematics and Computer, 2017
In this paper, we investigate several properties of the harmonic class ( ) we discuss the coefficient inequality, the distortion bounds theorem, the closure theorem, convex combinations, Bernardi integral operator and integral convolution property.
Waggas Galib Atshan   +1 more
doaj   +1 more source

Closure results for arbitrarily partitionable graphs [PDF]

open access: yesOpuscula Mathematica
A well-known result of Bondy and Chvátal establishes that a graph of order \(n\) is Hamiltonian if and only if its \(n\)-closure (obtained through repeatedly adding an edge joining any two non-adjacent vertices with degree sum at least \(n\)) also is. In
Julien Bensmail
doaj   +1 more source

Computational modeling and simulation of epithelial wound closure

open access: yesScientific Reports, 2023
Wounds in the epithelium may lead to serious injurious events or chronic inflammatory diseases, however, multicellular organisms have the ability to self-repair wounds through the movement of epithelial cell toward the wound area.
Jie Bai, Xiaowei Zeng
doaj   +1 more source

Closure properties for fitting functors

open access: yesMonatshefte f�r Mathematik, 1989
Fitting functors have been introduced by \textit{B. Brewster} and the present authors [Math. Z. 182, 359-384 (1983; Zbl 0518.20014)] as a generalization of injectors and radicals for Fitting classes of finite (soluble) groups. This paper provides definitions and properties of certain types of Fitting functors which resemble injectors and radicals for ...
Beidleman, James C., Hauck, Peter
openaire   +1 more source

Experiences of mine closure cover with geosynthetics in Peru [PDF]

open access: yesE3S Web of Conferences
Peru is internationally recognized as one of the countries with significant mining reserves. According to the Department of Energy and Mines (MINEM), as of December 2021, a total of 672 mining concession holders were registered and declared in the ...
Lagos Rainer, Fierro Gustavo
doaj   +1 more source

Expressiveness and Closure Properties for Quantitative Languages [PDF]

open access: yes2009 24th Annual IEEE Symposium on Logic In Computer Science, 2009
Weighted automata are nondeterministic automata with numerical weights on transitions. They can define quantitative languages~$L$ that assign to each word~$w$ a real number~$L(w)$. In the case of infinite words, the value of a run is naturally computed as the maximum, limsup, liminf, limit-average, or discounted-sum of the transition weights. The value
Krishnendu Chatterjee   +2 more
openaire   +7 more sources

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