Results 51 to 60 of about 243,252 (196)

Microscopic Description of Black Rings in AdS/CFT

open access: yes, 2004
We discuss some aspects of the recently discovered BPS black ring solutions in terms of the AdS/CFT correspondence. In the type IIB frame in which the black ring carries the charges of the D1-D5-P system, we propose a microscopic description of the rings
C.N. Gowdigere   +26 more
core   +1 more source

On Centrally Semiprime Rings and Centrally Semiprime [PDF]

open access: yesKirkuk Journal of Science, 2008
In this paper, two new algebraic structures are introduced which we call a centrally semiprime ring and a centrally semiprime right near-ring, and we look for those conditions which make centrally semiprime rings as commutative rings, so that several ...
Adil Kadir Jabbar   +1 more
doaj   +1 more source

Prime near-ring modules and their links with the generalised group near-ring [PDF]

open access: yes, 2007
In view of the facts that the definition of a ring led to the definition of a near- ring, the definition of a ring module led to the definition of a near-ring module, prime rings resulted in investigations with respect to primeness in near-rings, one is ...
Juglal, Shaanraj
core   +1 more source

The Phase Structure of Higher-Dimensional Black Rings and Black Holes [PDF]

open access: yes, 2007
We construct an approximate solution for an asymptotically flat, neutral, thin rotating black ring in any dimension D>=5 by matching the near-horizon solution for a bent boosted black string, to a linearized gravity solution away from the horizon.
Emparan, Roberto   +4 more
core   +3 more sources

On prime and semiprime near-rings with derivations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
Let N be a semiprime right near-ring, A a subset of N such that 0∈A and AN⫅A, and d a derivation of N The purpose of this paper is to prove that if d acts as a homomorphism on A or as an anti-homomorphism on A, then d(A)={0}.
Nurcan Argaç
doaj   +1 more source

Semigroup ideal in Prime Near-Rings with Derivations

open access: yesمجلة بغداد للعلوم, 2011
In this paper we generalize some of the results due to Bell and Mason on a near-ring N admitting a derivation D , and we will show that the body of evidence on prime near-rings with derivations have the behavior of the ring.
Baghdad Science Journal
doaj   +1 more source

Sound Radiation Characteristics of Acoustically Thick Composite Cylinders and Their Experimental Verification

open access: yesArchives of Acoustics, 2021
Cylindrical shells made of composite material form one of the major structural parts in aerospace structures. Many of them are acoustically thick, in which the ring frequencies are much higher than their critical frequencies.
S. JOSEPHINE KELVINA FLORENCE, K. RENJI
doaj   +1 more source

Near-rings of quotients of endomorphism near-rings [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1975
Let be a category with finite products and a final object and let X be any group object in . The set of -morphisms, (X, X) is, in a natural way, a near-ring which we call the endomorphism near-ring of X in Such nearrings have previously been studied in the case where is the category of pointed sets and mappings, (6).
openaire   +1 more source

Apse Alignment of Narrow Eccentric Planetary Rings [PDF]

open access: yes, 2000
The boundaries of the Uranian ∈, α, and β rings can be fitted by Keplerian ellipses. The pair of ellipses that outline a given ring share a common line of apsides.
E. I. Chiang   +3 more
core   +2 more sources

The Smallest Particles in Saturn's A and C Rings [PDF]

open access: yes, 2013
Radio occultations of Saturn's main rings by spacecraft suggest a power law particle size-distribution down to sizes of the order of 1 cm (Marouf et al., 1983), (Zebker et al., 1985).
Harbison, Rebecca A.   +2 more
core   +1 more source

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