Results 51 to 60 of about 351,850 (226)
Scattering of Open and Closed Strings in 1+1 Dimensions
, 1992 The ground ring structure of 1+1 dimensional string theory leads to an infinite set of non linear recursion relations among the `bulk' scattering amplitudes of open and closed tachyons on the disk, which fix them uniquely.
Bershadsky +24 more
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Mobi algebra as an abstraction to the unit interval and its comparison to rings [PDF]
, 2018 We introduce a new algebraic structure, called mobi algebra, consisting of three constants and one ternary operation. The canonical example of a mobi algebra is the unit interval with the three constants 0, 1, and 1/2 and the ternary operation given by ...
Fatelo, J. P., Ferreira, Nelson Martins
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Influence of per-O-sulfation upon the conformational behaviour of common furanosides
Beilstein Journal of Organic Chemistry, 2019 The studies on the recently discovered pyranoside-into-furanoside rearrangement have led us to conformational investigations of furanosides upon their total sulfation.
Alexey G. Gerbst +6 more
doaj +1 more source
The chiral ring of a symmetric orbifold and its large N limit
Journal of High Energy Physics, 2023 We analyze the chiral operator ring of the symmetric orbifold conformal field theory on the complex two-plane ℂ2. We compute the large N limit of the ring and exhibit its factorized leading order behaviour.
Sujay K. Ashok, Jan Troost
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Generators of rings of constants for some diagonal derivations in polynomial rings
Journal of Pure and Applied Algebra, 1995 Let \(K\) be a field of characteristic zero. The authors show that if \(n\geq 3\), that given \(r\geq 0\) there exists a diagonal \(K\)-derivation of \(K[x_1, \dots, x_n]\) such that the minimal number of generators over \(K\) of the ring of constants is equal to \(r\).
Andrzej Nowicki +2 more
openaire +3 more sources
Determination of association constants between 5 '-guanosine monophosphate gel and aromatic compounds by capillary electrophoresis [PDF]
, 2013 Hydro gel formed by 5'-guanosine monophosphate (GMP) in the presence of a potassium ion is expected to exhibit interesting selectivity in capillary electrophoretic separations.
Alberty +32 more
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Potentiometric investigation of acid-base equilibria of two new pyrimidine derivatives in various methanol-water media [PDF]
Journal of the Serbian Chemical Society, 2006 The acid-base properties of 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-one (L1) and 1-amino-5-benzoyl-4-phenyl-1H-pyrimidine-2-thione (L2) were investigated potentiometrically at an ionic strength of 0.10M(LiCl) in 19.8, 33.6 and 55.9 % (v/v) methanol ...
Kiliç Hasan, Birol Er
doaj +1 more source
Tạp chí Khoa học Đại học Đà Lạt, 2022 We demonstrate in this study that near-zero, ultra-flattened chromatic dispersion can be achieved over a wide range of wavelengths in photonic crystal fibers (PCFs) by means of slight variations in the geometrical parameters of the cladding.
Van Trong Dang +6 more
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Constants of Algebraic Derivations in Prime Rings
Communications in Algebra, 2008 Let R be a prime ring with extended centroid F and δ an F-algebraic derivation of R with the associated inner derivation ad(b). Set , the subring of constants of δ in R. We characterize the primeness and semiprimeness of R (δ) by the minimal polynomial μ(λ) of b over F.
Chuang, C.-L, Lee, T.-K, Zhou, Y.
openaire +3 more sources
Endomorphism rings of modules over prime rings [PDF]
, 2012 Endomorphism rings of modules appear as the center of a ring, as the fix ring of ring with group action or as the subring of constants of a derivation. This note discusses the question whether certain *-prime modules (introduced by Bican et al.) have a ...
Baziar, Mohammad, Lomp, Christian
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