Results 111 to 120 of about 1,616,014 (220)

Sidon sets from Erdős and Turán to yesterday

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 3, September 2026.
Abstract Motivated by some problems in Fourier analysis, Sidon asked for the maximum number of integers in a block of given length with the property that their pairwise sums are all distinct. The first estimate is due to P. Erdős and P. Turán [J. Lond. Math. Soc. (1) 16 (1941), 212–215].
Imre Z. Ruzsa
wiley   +1 more source

Groups of Polynomial Permutations over Finite Commutative Rings

open access: yes四川大学学报. 自然科学版, 2016
Sophie Frisch characterized the structure of the group of polynomial permutations over $\mathbb{Z}/p^2\mathbb{Z}$. Qifan Zhang found a correspondence between polynomial functions over $\mathbb{Z}/p^2\mathbb{Z}$ and 3-tuples of polynomial functions over $\
PAN Jia-Kun, ZHANG Qi-Fan
doaj  

Fuzzy Ideals on Ordered AG-Groupoids

open access: yesInternational Journal of Analysis and Applications, 2020
In this paper, we define the concept of direct product of finite fuzzy normal subrings over nonassociative and non-commutative rings (LA-ring) and investigate the some fundamental properties of direct product of fuzzy normal subrings.
Nasreen Kausar   +2 more
doaj  

Interpolation categories for conformal embeddings

open access: yesProceedings of the London Mathematical Society, Volume 133, Issue 3, September 2026.
Abstract In this paper, we give a diagrammatic description of the categories of modules coming from the conformal embeddings V(slN,N)⊂V(soN2−1,1)$\mathcal{V}({\mathfrak{sl}}_{N},N)\subset \mathcal{V}({\mathfrak{so}}_{{N}^{2}-1},1)$. A small variant of this construction (morally corresponding to a conformal embedding of glN${\mathfrak{gl}}_{N}$ level N ...
Cain Edie‐Michell, Noah Snyder
wiley   +1 more source

Zip and weak zip algebras in a congruence-modular variety [PDF]

open access: yesJournal of Mahani Mathematical Research
The zip (commutative) rings, introduced by Faith and Zelmanowitz, generated a fruitful line of investigation in ring theory. Recently, Dube, Blose and Taherifar developed an abstract theory of zippedness by means of frames.
George Georgescu
doaj   +1 more source

Subrings of Finite Commutative Rings

open access: yes, 2017
We establish basic results on subrings of finite commutative rings and closely related rings. Among other applications we calculate the number of maximal subrings of a finite commutative local ring.
openaire   +2 more sources

Commuting and product-zero probability in finite rings

open access: yesInternational Journal of Algebra and Computation
Let [Formula: see text] be the probability that two random elements of a finite ring R commute and [Formula: see text] the probability that the product of two random elements in R is zero. We show that if [Formula: see text], then there exists a Lie-ideal D in the Lie-ring [Formula: see text] with [Formula: see text]-bounded index and with [Formula ...
Pavel Shumyatsky, Matteo Vannacci
openaire   +4 more sources

Localization sequences for logarithmic topological cyclic homology

open access: yesJournal of Topology, Volume 19, Issue 3, September 2026.
Abstract We introduce the notion of an Ek$\mathbb {E}_k$‐ring with prelogarithmic structure, define logarithmic topological Hochschild homology and logarithmic topological cyclic homology in this context, and establish localization sequences for these theories. Our approach is based on Thom R$R$‐algebras.
John Rognes   +2 more
wiley   +1 more source

Direct Product of Finite Fuzzy Normal Subrings Over Non-Associative Rings

open access: yesInternational Journal of Analysis and Applications, 2019
In this paper, we define the concept of direct product of finite fuzzy normal subrings over nonassociative and non-commutative rings (LA-ring) and investigate the some fundamental properties of direct product of fuzzy normal subrings.
Nasreen Kausar, Muhammad Azam Waqar
doaj   +2 more sources

On the Jacobi Sums for Finite Commutative Rings with Identity

open access: yesJournal of Number Theory, 1994
The basic relationships between Gauss sums and Jacobi sums over a finite field are extended to Gauss and Jacobi sums over a finite commutative ring with identity.
openaire   +2 more sources

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