Results 1 to 10 of about 188 (178)

A linear-time algorithm that avoids inverses and computes Jackknife (leave-one-out) products like convolutions or other operators in commutative semigroups [PDF]

open access: yesAlgorithms for Molecular Biology, 2020
Background Data about herpesvirus microRNA motifs on human circular RNAs suggested the following statistical question. Consider independent random counts, not necessarily identically distributed.
John L. Spouge   +2 more
doaj   +2 more sources

Varieties Of Permutative Semigroups Closed Under Dominions [PDF]

open access: yesJournal of Algebraic Systems, 2023
In this paper, we partially generalize a result of Isbell from the class of commu- tative semigroups to some generalized class of commutative semigroups by showing that dominion of such semigroups belongs to the same class by using Isbell’s zigzag ...
Humaira Maqbool, Mohammad Bhat
doaj   +1 more source

Deviation bounds and concentration inequalities for quantum noises [PDF]

open access: yesQuantum, 2022
We provide a stochastic interpretation of non-commutative Dirichlet forms in the context of quantum filtering. For stochastic processes motivated by quantum optics experiments, we derive an optimal finite time deviation bound expressed in terms of the ...
Tristan Benoist   +2 more
doaj   +1 more source

Epimorphisms, Dominions, and Various Classes of Saturated Semigroups

open access: yesJournal of Mathematics, 2022
In this paper, we discussed some saturated classes of ℋ-commutative semigroups, left (right) regular semigroups, medial semigroups, and paramedial semigroups. The results of this paper significantly extend the long standing result about normal bands that
N. Alam   +4 more
doaj   +1 more source

The rank of a commutative semigroup [PDF]

open access: yesMathematica Bohemica, 2009
Summary: The concept of rank of a commutative cancellative semigroup is extended to all commutative semigroups \(S\) by defining \(\text{rank\,}S\) as the supremum of cardinalities of finite independent subsets of \(S\). Representing such a semigroup \(S\) as a semilattice \(Y\) of (Archimedean) components \(S_\alpha\), we prove that \(\text{rank\,}S\)
Cegarra, Antonio M., Petrich, Mario
openaire   +1 more source

On determinability of idempotent medial commutative quasigroups by their endomorphism semigroups; pp. 81–87 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2011
We extend the result of P. Puusemp (Idempotents of the endomorphism semigroups of groups. Acta Comment. Univ. Tartuensis, 1975, 366, 76–104) about determinability of finite Abelian groups by their endomorphism semigroups to finite idempotent medial ...
Alar Leibak, Peeter Puusemp
doaj   +1 more source

Locality and Centrality: The Variety ZG [PDF]

open access: yesLogical Methods in Computer Science, 2023
We study the variety ZG of monoids where the elements that belong to a group are central, i.e., commute with all other elements. We show that ZG is local, that is, the semidirect product ZG * D of ZG by definite semigroups is equal to LZG, the variety of
Antoine Amarilli, Charles Paperman
doaj   +1 more source

New models for some free algebras of small ranks

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
Dimonoids, generalized digroups and doppelsemigroups are algebras defined on a set with two binary associative operations. The notion of a dimonoid was introduced by J.-L.
A.V. Zhuchok, G.F. Pilz
doaj   +1 more source

On the joins of semigroup varieties with the variety of commutative semigroups [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
We show that the join of a variety of semigroups and the variety of all commutative semigroups is not finitely based, provided some weak conditions.
Sapir, M. V., Volkov, M. V.
openaire   +3 more sources

Right derivations on ordered semigroups [PDF]

open access: yesJournal of Hyperstructures, 2019
Over the last few decades, several authors have investigated the relationship between the commutativity of ring R and the existence of certain specified derivations of R.
M. Murali Krishna Rao
doaj   +1 more source

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