Results 21 to 30 of about 405 (39)

Two-sided zero-divisor graphs of orientation-preserving and order-decreasing transformation semigroups

Open Mathematics
For n≥4n\ge 4, let OPDn{{\mathcal{OPD}}}_{n} be the orientation-preserving and order-decreasing transformation semigroup on the finite chain Xn ...
Toker Kemal
doaj   +1 more source

Semigroup Closures of Finite Rank Symmetric Inverse Semigroups

, 2008
We introduce the notion of semigroup with a tight ideal series and investigate their closures in semitopological semigroups, particularly inverse semigroups with continuous inversion.
A. Abd-Allah, A.A. Beĭda, A.H. Clifford, A.H. Clifford, B.B. Baird, B.B. Baird, B.B. Baird, B.B. Baird, Dušan Repovš, H.P. Künzi, I.S. Yaroker, J.H. Carruth, J.H. Carruth, J.W. Stepp, J.W. Stepp, Jimmie Lawson, K. Kuratowski, K.D. Magill Jr., L.B. Šneperman, L.M. Gluskin, L.M. Gluskin, M. Petrich, O.V. Gutik, O.V. Gutik, Oleg Gutik, P.I. Booth, R. Engelking, R.J. Koch, S. Mendes-Gonçalves, S. Subbiah, S.D. Orlov, S.D. Orlov, V.V. Filippov, V.V. Wagner, W. Ruppert, Ľ. Holá   +35 more
core   +1 more source

On monoids of metric preserving functions

Frontiers in Applied Mathematics and Statistics
Let X be a class of metric spaces and let PX be the set of all f : [0, ∞) → [0, ∞) preserving X, i.e., (Y, f ∘ ρ) ∈ X whenever (Y, ρ) ∈ X. For arbitrary subset A of the set of all metric preserving functions, we show that the equality PX = A has a ...
Viktoriia Bilet, Oleksiy Dovgoshey, Oleksiy Dovgoshey   +2 more
doaj   +1 more source

Presentations for monoids of finite partial isometries

, 2015
In this paper we give presentations for the monoid $\mathcal{DP}_n$ of all partial isometries on $\{1,\ldots,n\}$ and for its submonoid $\mathcal{ODP}_n$ of all order-preserving partial isometries.Comment: 11 pages ...
Fernandes, Vítor H., Quinteiro, Teresa M.   +1 more
core   +1 more source

The Closed Orbit Controllability Criterium [PDF]

, 2010
We prove that every closed "general" trajectory of the control system $\Sigma_M$ has an open neighborhood on which $\Sigma_M$ is controllable if 1) this orbit contains some point where the Lie algebra rank condition ($LARC$) is satisfied, and 2) the set ...
Marenitch, Valeri
core  

Semigroup actions on sets and the Burnside ring

, 2018
In this paper we discuss some enlargements of the category of sets with semigroup actions and equivariant functions. We show that these enlarged categories possess two idempotent endofunctors.
Erdal, Mehmet Akif, Ünlü, Özgün
core   +2 more sources

An algebraic model for inversion and deletion in bacterial genome rearrangement. [PDF]

J Math Biol, 2023
Clark C, Jonušas J, Mitchell JD, Francis A.   +3 more
europepmc   +1 more source

SARS-CoV-2 Spike Protein (RBD) Subunit Adsorption at Abiotic Surfaces and Corona Formation at Polymer Particles. [PDF]

Int J Mol Sci, 2022
Żeliszewska P, Wasilewska M, Batys P, Pogoda K, Deptuła P, Bucki R, Adamczyk Z.   +6 more
europepmc   +1 more source

Utilization of optimized microwave sintering to produce safe and sustainable one-part alkali-activated materials. [PDF]

Sci Rep, 2023
Refaat M, Mohsen A, Nasr EAR, Kohail M.
europepmc   +1 more source

Kick proficiency and skill adaptability increase from an Australian football small-sided game intervention. [PDF]

Front Sports Act Living, 2022
Bonney N, Larkin P, Ball K.
europepmc   +1 more source