Results 21 to 30 of about 1,345,046 (291)

Interactions between unidirectional quantized vortex rings [PDF]

open access: yes, 2016
We have used the vortex filament method to numerically investigate the interactions between pairs of quantized vortex rings that are initially traveling in the same direction but with their axes offset by a variable impact parameter.
Brown, R. A.   +4 more
core   +2 more sources

Weakly quadratent rings

open access: yesJournal of Taibah University for Science, 2019
We completely characterize up to an isomorphism those rings whose elements satisfy the equations $ x^4=x $ or $ x^4=-x $ . Specifically, it is proved that a ring is weakly quadratent if, and only if, it is isomorphic to either K, $ \mathbb {Z}_3 ...
Peter V. Danchev
doaj   +1 more source

Universal Enveloping Commutative Rota–Baxter Algebras of Pre- and Post-Commutative Algebras

open access: yesAxioms, 2017
Universal enveloping commutative Rota–Baxter algebras of pre- and post-commutative algebras are constructed. The pair of varieties (RBλCom, postCom) is proved to be a Poincaré–Birkhoff–Witt-pair (PBW)-pair and the pair (RBCom, preCom) is proven not to be.
Vsevolod Gubarev
doaj   +1 more source

Traces on Semigroup Rings and Leavitt Path Algebras [PDF]

open access: yes, 2015
The trace on matrix rings, along with the augmentation map and Kaplansky trace on group rings, are some of the many examples of linear functions on algebras that vanish on all commutators.
Mesyan, Zachary, Vas, Lia
core   +1 more source

Bounds for Coding Theory over Rings

open access: yesEntropy, 2022
Coding theory where the alphabet is identified with the elements of a ring or a module has become an important research topic over the last 30 years. It has been well established that, with the generalization of the algebraic structure to rings, there is
Niklas Gassner   +3 more
doaj   +1 more source

On Idempotent Elements [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2009
In this paper we study idempotent elements, we give some new properties of idempotent elements and provide some exam we also study central idempotent elements and orthogonal idempotent elements and give some new properties of such idempotent ...
Nazar Shuker, Alaa Hammodat
doaj   +1 more source

Persistent currents in coupled mesoscopic rings [PDF]

open access: yes, 1995
We have analysed the nature of persistent currents in open coupled mesoscopic rings. Our system is comprised of two ideal loops connected to an electron reservoir.
A. M. Jayannavar   +22 more
core   +2 more sources

On rings on rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1964
This paper presents a solution to a popular problem in the subject of rings of analytic functions. In the late 1940's it was shown that two domains Di and D2 in the complex plane were conformally equivalent (to within a certain equivalence relation) iff the rings B(Di) and B(D2) of all bounded analytic functions defined on them were algebraically ...
openaire   +1 more source

Piranti Lunak Pengujian Struktur Matematika Grup, Ring, Field Berbasis Osp (Open Source Program)

open access: yesComTech, 2014
This design of a computer software is a development and continuation of the software made on the previous research (2009/2010). However, this further research developed and expanded the scopes of testing more on the Siclic Group, Isomorphism Group, Semi
Ngarap Im Manik, Don Tasman
doaj   +1 more source

ON THE REFINEMENT OF THE UNIT AND UNITARY CAYLEY GRAPHS OF RINGS [PDF]

open access: yesJournal of Algebraic Systems, 2019
Let $R$ be a ring (not necessarily commutative) with nonzero identity. We define $Gamma(R)$ to be the graph with vertex set $R$ in which two distinct vertices $x$ and $y$ are adjacent if and only if there exist unit elements $u,v$ of $R$ such that $x+uyv$
M. Rezagholibeigi, A. R. Naghipour
doaj   +1 more source

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