Results 41 to 50 of about 35,172 (254)
Partial actions of monoids [PDF]
We investigate partial monoid actions, in the sense of Megrelishvili and Schroeder [12]. These are equivalent to a class of premorphisms, which we call strong premorphisms.
Hollings, Christopher
core +1 more source
Let [Formula: see text] be a finite n-chain [Formula: see text], and let [Formula: see text] be the monoid of full contraction mappings on [Formula: see text].
M. M. Zubairu, A. Umar, A. Jibrin
doaj +1 more source
A Categorical Approach to Syntactic Monoids [PDF]
The syntactic monoid of a language is generalized to the level of a symmetric monoidal closed category $\mathcal D$. This allows for a uniform treatment of several notions of syntactic algebras known in the literature, including the syntactic monoids of ...
Jiří Adamek +2 more
doaj +1 more source
The author develops an algebraic theory for languages of data words, i.e. words over an alphabet \(\Sigma\times \mathbb{D}\) where \(\Sigma\) is a finite set of labels and \(\mathbb{D}\) is an infinite set of data values. Some of the key notions of the paper are defined relative to a given data symmetry \((\mathbb{D},G)\) in which \(G\) is a subgroup ...
openaire +2 more sources
Monoid varieties with extreme properties
Finite monoids that generate monoid varieties with uncountably many subvarieties seem rare, and surprisingly, no finite monoid is known to generate a monoid variety with countably infinitely many subvarieties.
Jackson, Marcel, Lee, Edmond W. H.
core +1 more source
On topologies on the underlying set of a topological monoid induced by its unitary extensions
Extensions of a given topological monoid where all its unitary Cauchy filters converge, can induce di˙erent topologies on its underlying set. We study properties of these topologies and prove a condition under which the initial topology of this monoid is
Averbukh Boris G.
doaj +1 more source
Factoring Continuous Characters Defined on Subgroups of Products of Topological Groups
This study is on the factorization properties of continuous homomorphisms defined on subgroups (or submonoids) of products of (para)topological groups (or monoids).
Mikhail G. Tkachenko
doaj +1 more source
Counting monogenic monoids and inverse monoids
9 pages (2 figures, 1 table, updated with number of improvement, to appear in Comm. Alg.)
L. Elliott, A. Levine, J. D. Mitchell
openaire +5 more sources
SOLVING DIFFERENCE EQUATIONS IN SEQUENCES: UNIVERSALITY AND UNDECIDABILITY
We study solutions of difference equations in the rings of sequences and, more generally, solutions of equations with a monoid action in the ring of sequences indexed by the monoid. This framework includes, for example, difference equations on grids (for
GLEB POGUDIN +2 more
doaj +1 more source
Syntactic Monoids in a Category [PDF]
The syntactic monoid of a language is generalized to the level of a symmetric monoidal closed category D. This allows for a uniform treatment of several notions of syntactic algebras known in the literature, including the syntactic monoids of Rabin and ...
Adamek, Jiri +2 more
core +2 more sources

