Results 71 to 80 of about 434 (188)

Efficient Dynamics: Reduced‐Order Modeling of the Time‐Dependent Schrödinger Equation

open access: yesAdvanced Physics Research, Volume 5, Issue 2, February 2026.
Reduced‐order modeling (ROM) approaches for the time‐dependent Schrödinger equation are investigated, highlighting their ability to simulate quantum dynamics efficiently. Proper Orthogonal Decomposition, Dynamic Mode Decomposition, and Reduced Basis Methods are compared across canonical systems and extended to higher dimensions.
Kolade M. Owolabi
wiley   +1 more source

Control of Open Quantum Systems via Dynamical Invariants

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 2, February 2026.
Dynamical invariants are used to reverse‐engineer control fields for open quantum systems described by time‐dependent Lindblad master equations. By minimizing an analytic leakage functional, the protocol dynamically steers the state along an effectively decoherence‐free path without costly iterative propagation.
Loris M. Cangemi   +4 more
wiley   +1 more source

A New Efficient Digital Image Encryption Based on Inverse Left Almost Semi Group and Lorenz Chaotic System

open access: yesEntropy, 2018
In this research article, we propose a new structure namely inverse left almost semigroup (LA-semigroup) by adding confusion in our proposed image encryption scheme along with discrete and continuous chaotic systems in order to complement the diffusion ...
Irfan Younas, Majid Khan
doaj   +1 more source

On the Structure of С*-Algebras Generated by Representations of the Elementary Inverse Semigroup [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2016
The class of С*-algebras generated by the elementary inverse semigroup and being deformations of the Toeplitz algebra has been introduced and studied. The properties of these algebras have been investigated.
S.A. Grigoryan, E.V. Lipacheva
doaj  

Counter examples for pseudo-amenability of some semigroup algebras

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2020
In this short note, we give some counter examples which show that [11, Proposition 3.5] is not true. As a consequence, the arguments in [11, Proposition 4.10] is not valid.
Amir Sahami
doaj  

Algebras of right ample semigroups

open access: yesOpen Mathematics, 2018
Strict RA semigroups are common generalizations of ample semigroups and inverse semigroups. The aim of this paper is to study algebras of strict RA semigroups.
Guo Junying, Guo Xiaojiang
doaj   +1 more source

The Regular Part of a Semigroup of Full Transformations with Restricted Range: Maximal Inverse Subsemigroups and Maximal Regular Subsemigroups of Its Ideals

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2018
Let TX be the full transformation semigroup on a set X. For a fixed nonempty subset Y of a set X, let TX,Y be the semigroup consisting of all full transformations from X into Y.
Worachead Sommanee
doaj   +1 more source

Commutant properties of w-core inverses

open access: yesKuwait Journal of Science
In this paper, we investigate commutant properties of the w-core inverse in a ∗-semigroup. Among these, it is shown that [Figure presented] if and only if a is equal projection (EP) with [Figure presented], where a and w are elements of a ∗-semigroup. As
doaj   +1 more source

On Maximal Subsemigroups of Partial Baer-Levi Semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
Suppose that X is an infinite set with |X|≥q≥ℵ0 and I(X) is the symmetric inverse semigroup defined on X. In 1984, Levi and Wood determined a class of maximal subsemigroups MA (using certain subsets A of X) of the Baer-Levi semigroup BL(q)={α∈I(X): dom α=
Boorapa Singha, Jintana Sanwong
doaj   +1 more source

On inverse submonoids of the monoid of almost monotone injective co-finite partial selfmaps of positive integers

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2019
In this paper we study submonoids of the monoid $\mathscr{I}_{\infty}^{\,\Rsh\!\!\nearrow}(\mathbb{N})$ of almost monotone injective co-finite partial selfmaps of positive integers $\mathbb{N}$.
O.V. Gutik, A.S. Savchuk
doaj   +1 more source

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