Results 61 to 70 of about 6,955,994 (297)

Actions of a separately strict cpo-monoid on pointed directed complete posets [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2015
‎ In the present article‎, ‎we study some categorical properties of the category {$bf‎ Cpo_{Sep}$-$S$} of all {separately strict $S$-cpo's}; cpo's equipped with‎ a compatible right action of a separately strict cpo-monoid $S$ which is‎ strict continuous ...
Halimeh Moghbeli Damaneh
doaj  

Some Common Fixed Point Theorems in Partially Ordered Sets

open access: yesJournal of Applied Mathematics, 2020
The purpose of this paper is to prove some new fixed point theorem and common fixed point theorems of a commuting family of order-preserving mappings defined on an ordered set, which unify and generalize some relevant fixed point theorems.
Khadija Bouzkoura, Said Benkaddour
doaj   +1 more source

Records in a Partially Ordered Set

open access: yesThe Annals of Probability, 1989
Let S be a set equipped with a strict partial order \(``
Goldie, Charles M., Resnick, Sidney
openaire   +3 more sources

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

The morphology of partially ordered sets

open access: yesJournal of Combinatorial Theory, Series A, 1974
DEFINITION. XC gn is called a set of incomparable elements if A, B E X and A C B imply A = B. Then Sperner’s Theorem -maxx / X 1 = (,J,,), where X ranges over all sets of incomparable elements in .?3,, . The standard proof of Sperner’s theorem (see Harper-Rota [lo]) is based upon two properties of an , unimodality and matching.
openaire   +2 more sources

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

π1(K)-GRADED C ∗-ALGEBRAS GENERATED BY PARTIALLY ORDERED SET [PDF]

open access: yes, 2017
В работе строится C ∗-алгебра над частично-упорядоченным множеством, в каж- дой точке которого задано гильбертово пространство. Доказывается, что эта ал- гебра является градуированной по 1-й гомотопической фундаментальной группе дан- ного частично ...
Григорян С.А.   +2 more
core  

Structure‐forward targeting of claudins with synthetic binders

open access: yesFEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

Matroids on Partially Ordered Sets

open access: yesAdvances in Applied Mathematics, 1998
The concept of a matroid is known to be a fundamental concept in combinatorics and it is also known to be ubiquitous in mathematics in general (e.g., stratification of Grassmanians, arrangements of hyperplanes, optimization). In the literature there exist attempts to generalize this concept.
Barnabei, Marilena   +2 more
openaire   +1 more source

Ramsey Numbers for Partially-Ordered Sets [PDF]

open access: yesOrder, 2018
We present a refinement of Ramsey numbers by considering graphs with a partial ordering on their vertices. This is a natural extension of the ordered Ramsey numbers. We formalize situations in which we can use arbitrary families of partially-ordered sets to form host graphs for Ramsey problems. We explore connections to well studied Turán-type problems
Christopher Cox, Derrick Stolee
openaire   +2 more sources

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