Results 31 to 40 of about 787,356 (301)

On θω continuity

open access: yesHeliyon, 2020
We use the closure and the theta omega closure operators to introduce θω-continuous, ω-θ-continuous, weakly θω-continuous and faintly θω-continuous as new four classes of functions.
Samer Al Ghour, Bayan Irshidat
doaj   +1 more source

Semistar Operations and Standard Closure Operations [PDF]

open access: yesCommunications in Algebra, 2014
The main change from the previous version is a new theorem in section 4 characterizing the standardized radical in terms of the total quotient ring. I also incorporated minor changes following the referee's comments.
openaire   +2 more sources

Polymatroids, Closure Operators and Lattices

open access: yesOrder, 2022
We study the closure operators of polymatroids from a lattice theoretic point of view. We show that polymatroid closure operators relate to lattices enriched with a generating set in the same way that matroids relate to geometric lattices. Through this relation we define a notion of minors for lattices enriched with a generating set. For the lattice of
openaire   +4 more sources

Closure Operators and Lattice Extensions [PDF]

open access: yesOrder, 2004
Let \(\Gamma \) be a closure operator on a set \(X\). Then Cl\((X,\Gamma )\) denotes the lattice of \(\Gamma \)-closed subsets of \(X\). If \(\Gamma \) and \(\Delta \) are closure operators on the same set \(X\), then \(\Delta \) is a weak (resp. strong) extension of \(\Gamma \) if Cl\((X,\Gamma )\) is a complete meet-subsemilattice (resp.
openaire   +2 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Closure operators on hoops

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
In this article, we study relationships between closure operators and hoops. We investigate the properties of closure operators and hoop-homomorphism on hoops. We show that the image of a closure operator on a hoop is isomorphic to a quotient hoop.
Borzooei R.A.   +3 more
doaj   +1 more source

Thirtieth Illinois Custom Spray Operators Training School: summaries of presentations [PDF]

open access: yes, 1978
Made available in DSpace on 2016-03-17T21:24:48Z (GMT). No. of bitstreams: 2 749322_1978.pdf: 23378686 bytes, checksum: b92cc1d406bf1a5f508ee2da8a5f595d (MD5) license.txt: 4846 bytes, checksum: 927d59ba442de31571446841df3d90ca (MD5) Previous issue date:
Illinois Custom Spray Operators' School
core  

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

On Bisimilarity for Quasi-discrete Closure Spaces [PDF]

open access: yesLogical Methods in Computer Science
Closure spaces, a generalisation of topological spaces, have shown to be a convenient theoretical framework for spatial model checking. The closure operator of closure spaces and quasi-discrete closure spaces induces a notion of neighborhood akin to that
Vincenzo Ciancia   +3 more
doaj   +1 more source

FUZZY G-CLOSURE OPERATORS [PDF]

open access: yesCommunications of the Korean Mathematical Society, 2003
Summary: We introduce a fuzzy g-closure operator induced by a fuzzy topological space in view of the definition of \textit{A.P.Šostak} [Rend. Circ. Mat. Palermo, II. Ser. Suppl. 11, 89-103 (1985; Zbl 0638.45007)]. We show that it is a fuzzy closure operator. Furthermore, it induces a fuzzy topology which is finer than a given fuzzy topology.
Kim, Yong Chan, Ko, Jung Mi
openaire   +2 more sources

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