Results 21 to 30 of about 20,979 (232)

TRIANGULAR MATRIX REPRESENTATIONS OF SKEW MONOID RINGS [PDF]

open access: yes, 2010
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.
Xiaoyan, Yang, Zhongkui, Liu
core   +1 more source

Threads without idempotents [PDF]

open access: yesProceedings of the American Mathematical Society, 1961
If a thread S has no idempotents and if S2 = S, then S is iseomorphic with the real interval (0, 1) under ordinary multiplication [2, Corollary 5.6]. Although the result is not nearly as pleasing as the special case just quoted, we shall give here a description of any thread without idempotents.
openaire   +1 more source

p-Jones-Wenzl idempotents [PDF]

open access: yesAdvances in Mathematics, 2019
15 pages, 21 figures. Many minor changes. Major change of notation.
Burrull G., Libedinsky N., Sentinelli P.
openaire   +4 more sources

Dynamics near an idempotent [PDF]

open access: yesTopology and its Applications, 2020
15 pages, Comments and suggestions are welcome.
Shaikh, Md. Moid   +2 more
openaire   +3 more sources

Idempotent Noether lattices [PDF]

open access: yesProceedings of the American Mathematical Society, 1969
In his paper, Abstract commutative ideal theory [2 ], Dilworth proved that a Noether lattice on which the multiplication is the meet operation is a finite Boolean algebra. This note proves that if the multiplication in a Noether lattice is idempotent (A2= A for all A in the lattice), then the lattice is a finite Boolean algebra.
openaire   +2 more sources

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

Nice connecting paths in connected components of sets of algebraic elements in a Banach algebra [PDF]

open access: yes, 2016
Generalizing earlier results about the set of idempotents in a Banach algebra, or of self-adjoint idempotents in a $C^*$-algebra, we announce constructions of nice connecting paths in the connected components of the set of elements in a Banach algebra ...
Makai, Jr., E., Zemánek, Jaroslav
core   +2 more sources

Idempotent tree languages

open access: yesDemonstratio Mathematica, 2013
Abstract A tree language of a fixed type τ is any set of terms of type τ. We consider here a binary operation + n on the set Wτ (Xn ) of all n-ary terms of type τ, which results in semigroup (Wτ (Xn ...
Denecke, K., Sarasit, N., Wismath, S. L.
openaire   +2 more sources

On Ordered Regular Semigroups with a Zero Element [PDF]

open access: yesMathematics Interdisciplinary Research, 2022
In this paper, we study several conditions on ordered regular semigroups containing a zero element. In particular, we consider the natural and semigroup order and their connections to the properties of being principally ordered, Dubreil-Jacotin and BZS ...
Goncalo Pinto
doaj   +1 more source

One-Generator Quasi-Abelian Codes Revisited [PDF]

open access: yes, 2016
The class of 1-generator quasi-abelian codes over finite fields is revisited. Alternative and explicit characterization and enumeration of such codes are given. An algorithm to find all 1-generator quasi-abelian codes is provided.
Jitman, Somphong, Udomkavanich, Patanee
core   +4 more sources

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