Results 21 to 30 of about 3,793 (268)

Medial commutativity

open access: yesAnnals of Pure and Applied Logic, 2007
27 pages, minor ...
Kosta Dosen, Zoran Petric
openaire   +2 more sources

Commutative queries

open access: yesProceedings of the Fifth Israeli Symposium on Theory of Computing and Systems, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Richard Beigel, Richard Chang 0001
openaire   +1 more source

On commutative polarizations

open access: yesJournal of Algebra, 2003
The purpose of this paper is to study finite-dimensional Lie algebras over a field k of characteristic zero which admit a commutative polarization (CP). Among the many results and examples, it is shown that, if k is algebraically closed, the nilradical N of a parabolic subalgebra in A_n and C_n has such a CP.
ELASHVILI, Alexander, OOMS, Alfons
openaire   +4 more sources

Commutant lifting for commuting row contractions [PDF]

open access: yesBulletin of the London Mathematical Society, 2010
one section and references were ...
Davidson, Kenneth R., Le, Trieu
openaire   +2 more sources

Procedure analysis of UHVDC commutation failure

open access: yesThe Journal of Engineering, 2019
There may be a commutation failure during a fault or start-up of the UHVDC inverter side. The law of commutation failure process in UHVDC converter is studied here. First, the cause of inverter commutation failures is briefly introduced.
Chenqing Wang   +4 more
doaj   +1 more source

Ways to improve the application of early release from serving a sentence [PDF]

open access: yesПенитенциарная наука, 2023
Introduction: the article discusses and analyzes ways to improve the complex institution of long-term release from serving a sentence as an important means to promote law-abiding behavior of convicts. A large number of petitions for the application of
Brilliantov A.V., Babayan S.L.
doaj   +1 more source

Commutators and generators.

open access: yesMATHEMATICA SCANDINAVICA, 1988
Let \({\mathcal B}\) be a Banach space, \(\sigma\) a \(C_ 0\)-group of isometries of \({\mathcal B}\) with generator \(H\), and \({\mathcal D}\subseteq D(H)\) a \(\sigma\)-invariant core of \(H\). Suppose \(K:{\mathcal D}\to {\mathcal B}\) is a dissipative operator satisfying \[ 1.\quad \| Ka\| \leq k_ 0(\| Ha\| \vee \| a\|),\quad a\in {\mathcal D}, \]
Batty, Charles J.K., Robinson, Derek W.
openaire   +4 more sources

Commutators and commutator subgroups of finite p-groups [PDF]

open access: yesJournal of Algebra, 2021
28 pages.
Rahul Kaushik, Manoj K. Yadav
openaire   +2 more sources

Line‐of‐sight probability for UAV communications in 3D grid urban streets

open access: yesElectronics Letters, 2023
In this letter, the authors present a novel expression for the probability of line‐of‐sight (LoS) between a UAV and ground users situated on a gridded street within urban and dense urban environments.
Mengan Song   +3 more
doaj   +1 more source

GPS-Free Wireless Precise Positioning System for Automatic Flying and Landing Application of Shipborne Unmanned Aerial Vehicle

open access: yesSensors
This research is dedicated to developing an automatic landing system for shipborne unmanned aerial vehicles (UAVs) based on wireless precise positioning technology.
Tsu-Yu Lo   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy