Results 41 to 50 of about 355,905 (327)

A variant of the large sieve inequality with explicit constants

open access: yesJournal of Mathematical Cryptology, 2020
We give an effective version with explicit constants of the large sieve inequality for imaginary quadratic fields. Explicit results of this kind are useful for estimating the computational complexity of algorithms which generate elements, whose norm is a
Grześkowiak Maciej
doaj   +1 more source

Determination of association constants between 5 '-guanosine monophosphate gel and aromatic compounds by capillary electrophoresis [PDF]

open access: yes, 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
core   +1 more source

From Molecular to Cluster Properties: Rotational Spectroscopy of 2-Aminopyridine and of Its Biomimetic Cluster with Water

open access: yesMolecules, 2021
We report the observation and analysis of the rotational spectrum of a 1:1 cluster between 2-aminopyridine and water (AMW) carried out with supersonic expansion Fourier transform microwave spectroscopy at 4.7–16.5 GHz. Measurements of the 2-aminopyridine
Adam Kraśnicki   +2 more
doaj   +1 more source

Completion of the Conjecture: Quantum Cohomology of Fano Hypersurfaces

open access: yes, 1999
In this paper, we propose the formulas that compute all the rational structural constants of the quantum K\"ahler sub-ring of Fano hypersurfaces.Comment: 19pages, Latex, minor changes in English, some formulas are ...
Beauville A., MASAO JINZENJI
core   +1 more source

Mobi algebra as an abstraction to the unit interval and its comparison to rings [PDF]

open access: yes, 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
core   +2 more sources

Scattering of Open and Closed Strings in 1+1 Dimensions

open access: yes, 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
core   +2 more sources

Dependence on Dimension of a Constant Related to the Grotzsch Ring [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
For the constant λ n = lim a → 0 ( mod R G , n ( a )
openaire   +1 more source

The chiral ring of a symmetric orbifold and its large N limit

open access: yesJournal 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
doaj   +1 more source

Stereospecific four-bond phosphorus-phosphorus spin couplings in phosphazenyl-phosphazenes [PDF]

open access: yes, 1976
Four-bond phosphorus-phosphorus coupling constants have been measured from the 31P NMR spectra of phosphazenylcyclophosphazenes. Their magnitude appears to be related to the conformation adopted by the phosphazenyl-group relative to the phosphazene ...
Biddlestone, Malcolm   +4 more
core   +2 more sources

On the ring of constants for derivations of power series rings in two variables [PDF]

open access: yesColloquium Mathematicum, 2001
Summary: Let \(k[[x,y]]\) be the formal power series ring in two variables over a field \(k\) of characteristic zero and let \(d\) be a non-zero derivation of \(k[[x,y]]\). We prove that if \(\text{Ker}(d)\neq k\) then \(\text{Ker}(d) = \text{Ker}(\delta)\), where \(\delta\) is a Jacobian derivation of \(k[[x,y]]\).
Makar-Limanov, Leonid, Nowicki, Andrzej
openaire   +1 more source

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