Results 31 to 40 of about 4,881 (233)
Algebraic and combinatorial structures on Baxter permutations [PDF]
We give a new construction of a Hopf subalgebra of the Hopf algebra of Free quasi-symmetric functions whose bases are indexed by objects belonging to the Baxter combinatorial family (\emphi.e.
Samuele Giraudo
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Monoidal Supercategories [PDF]
42 pages, sign error in Definition 1.16 ...
Brundan, Jonathan, Ellis, Alexander P.
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Monoid Properties as Invariants of Toposes of Monoid Actions [PDF]
AbstractWe systematically investigate, for a monoidM, how topos-theoretic properties of$${{\,\mathrm{\mathbf {PSh}}\,}}(M)$$PSh(M), including the properties of being atomic, strongly compact, local, totally connected or cohesive, correspond to semigroup-theoretic properties ofM.
Jens Hemelaer, Morgan Rogers
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Group Fuzzy Languages and its Generalizations
In fuzzy language theory, every monoid is the syntactic monoid of some fuzzy language. By using this result the properties of fuzzy language can be studied by the algebraic properties of the syntactic monoids. There are so many methods for studying fuzzy
Archana Vasudevan Pillai Prasanna +2 more
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A comultiplication on a monoid S is a homomorphism m:S→S∗S (the free product of S with itself) whose composition with each projection is the identity homomorphism.
Martin Arkowitz, Mauricio Gutierrez
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Finite coverings of semigroups and related structures [PDF]
For a semigroup $S$, the covering number of $S$ with respect to semigroups, $\sigma_s(S)$, is the minimum number of proper subsemigroups of $S$ whose union is $S$.
Casey Donoven, Luise-Charlotte Kappe
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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
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On Naturally Ordered Abundant Semigroups with an Adequate Monoid Transversal
In this paper, we study a class of naturally ordered abundant semigroups with an adequate monoid transversal, namely, naturally ordered concordant semigroups with an adequate monoid transversal.
Wei Chen
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TRIANGULAR MATRIX REPRESENTATIONS OF SKEW MONOID RINGS
Let R be a ring and S a u.p.-monoid. Assume that there is a monoid homomorphism α : S → Aut (R). Suppose that α is weakly rigid and lR(Ra) is pure as a left ideal of R for every element a ∈ R.
Zhongkui, Liu, Xiaoyan, Yang
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On endomorphisms of groups of orders 37–47; pp. 137–150 [PDF]
It is proved that the finite groups of orders 37â47 are determined by their endomorphism monoids in the class of all groups.
Alar Leibak, Peeter Puusemp
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