Results 71 to 80 of about 1,595,421 (249)
Some Results on Smarandache Semigroups
Journal of Kufa for Mathematics and Computer, 2013 We discusse in this paper a Smarandache semigroups , a Smarandache cyclic semigroups and a Smarandache lagrange semigroups.We prove that the Smarandache semigroup with multiplication modulo 2P where p is an odd prime have two subgroups of order P-1and
Sajda Kadhum Mohammed
doaj +1 more source
Stability of Viscous Three‐Dimensional Stratified Couette Flow via Dispersion and Mixing
Communications on Pure and Applied Mathematics, Volume 79, Issue 12, Page 2435-2490, December 2026.ABSTRACT This article explores the stability of stratified Couette flow in the viscous 3d$3d$ Boussinesq equations. In this system, mixing effects arise from the shearing background, and gravity acts as a restoring force leading to dispersive internal gravity waves.
Michele Coti Zelati +2 more
wiley +1 more source
A characterization of the translational hull of a weakly type B semigroup with E-properties
Open MathematicsRecall that weakly type B semigroups are generalized inverse semigroups on semi-abundant semigroups. The main aim of this article is to prove that the translational hull of a weakly type B semigroup is still a semigroup of the same type.
Li Chunhua, Fang Jieying, Meng Lingxiang
doaj +1 more source
THE INVERSE HULL OF 0-LEFT CANCELLATIVE SEMIGROUPS [PDF]
International Congress of Mathematicans, 2017 Given a semigroup S with zero, which is left-cancellative in the sense that st=sr \neq 0 implies that t=r, we construct an inverse semigroup called the inverse hull of S, denoted H(S).
R. Exel, B. Steinberg
semanticscholar +1 more source
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.ABSTRACT Recent results have shown that domain‐uniform stabilizability and detectability imply spatial exponential decay of perturbations in optimally controlled hyperbolic PDEs on one‐dimensional domains. This domain‐uniform stabilizability and detectability can be achieved only if the control domain is distributed over the whole spatial domain such ...
Benedikt Oppeneiger
wiley +1 more source
On the automorphisms of the power semigroups of a numerical semigroup
Transactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.Abstract If H$H$ is a numerical semigroup (i.e., a cofinite subset of the non‐negative integers closed under addition), then the collection of all non‐empty subsets of H$H$ forms a semigroup P(H)$\mathcal {P}(H)$ under the sumset operation induced by addition in H$H$.
Salvatore Tringali, Kerou Wen
wiley +1 more source
MathematicsThe aim of this paper is to introduce and study Zappa-Szép groupoids of inverse semigroups. Some properties of such kinds of groupoids are explored. As an application, an alternative proof of Billhardt’s λ-semidirect products is given.
Suha Wazzan
doaj +1 more source
Amenability and Contractibility Modulo an Ideal of Banach Algebras
Abstract and Applied Analysis, 2014 We investigate the concept of amenability modulo an ideal of Banach algebra, showing that amenability modulo an ideal can be characterized by the existence of virtual and approximate diagonal modulo an ideal.
Hamidreza Rahimi, Elham Tahmasebi
doaj +1 more source
Amenable actions of inverse semigroups [PDF]
Ergodic Theory and Dynamical Systems, 2014 We say that an action of a countable discrete inverse semigroup on a locally compact Hausdorff space is amenable if its groupoid of germs is amenable in the sense of Anantharaman-Delaroche and Renault.
R. Exel, Charles Starling
semanticscholar +1 more source
Inversions of Hermite Semigroup [PDF]
Proceedings of the American Mathematical Society, 1993 Let { e −
openaire +1 more source