Results 41 to 50 of about 65,756 (223)
Positronium Hyperfine Splitting in Non-commutative Space at the Order $\alpha^6$
, 2001 We obtain positronium Hyperfine Splitting owing to the non-commutativity of space and show that, in the leading order, it is proportional to $\theta \alpha^6$ where, $\theta$ is the parameter of non-commutativity.
A. Hoang +15 more
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Symplectic Quantization of Open Strings and Noncommutativity in Branes [PDF]
, 2001 We show how to translate boundary conditions into constraints in the symplectic quantization method by an appropriate choice of generalized variables.
C. Hofman +13 more
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, 2015 We describe a general framework for notions of commutativity based on enriched category theory. We extend Eilenberg and Kelly's tensor product for categories enriched over a symmetric monoidal base to a tensor product for categories enriched over a ...
Franco, Ignacio López, Garner, Richard
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Non-commutativity and Supersymmetry [PDF]
, 2002 We study the extent to which the gauge symmetry of abelian Yang-Mills can be deformed under two conditions: first, that the deformation depend on a two-form scale. Second, that the deformation preserve supersymmetry.
A. Connes +10 more
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Annals of Pure and Applied Logic, 2007 27 pages, minor ...
Došen, Kosta, Petrić, Zoran
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Quotient rings satisfying some identities
Cubo, 2023 This paper investigates the commutativity of the quotient ring \(\mathcal{R}/P\), where \(\mathcal{R}\) is an associative ring with a prime ideal \(P\), and the possibility of forms of derivations satisfying certain algebraic identities on \(\mathcal{R}\)
Mohammadi El Hamdaoui, Abdelkarim Boua
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A note on subgroup commutativity degrees of finite groups
, 2018 In this note we give some new results concerning the subgroup commutativity degree of a finite group $G$. These are obtained by considering the minimum of subgroup commutativity degrees of all sections of $G$
Tărnăuceanu, Marius
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Certain near-rings are rings, II
International Journal of Mathematics and Mathematical Sciences, 1986 We investigate distributively-generated near-rings R which satisfy one of the following conditions: (i) for each x,y∈R, there exist positive integers m, n for which xy=ymxn; (ii) for each x,y∈R, there exists a positive integer n such that xy=(yx)n. Under
Howard E. Bell
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Non-commutative Dp-Brane in General Background Fields
, 2013 We investigate non-commutativity of open strings, attached to a D$p$-brane, in the presence of the linear dilaton, tachyon, U(1) gauge field as well as constant anti-symmetric $B$-field backgrounds.
Kamani, Davoud, Zoghi, Maryam
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Proceedings of the American Mathematical Society, 1992 This paper deals with minimizing | | B − ( A X − X A ) | | p ||B - (AX - XA)|{|_p} , where A A and B B
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