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Axial algebras are a recently introduced class of non-associative algebra motivated by applications to groups and vertex-operator algebras. We develop the structure theory of axial algebras focussing on two major topics: (1) radical and…

Rings and Algebras · Mathematics 2020-04-27 Sanhan Khasraw , Justin McInroy , Sergey Shpectorov

For an abelian number field of odd degree, we study the structure of its 2-Selmer group as a bilinear space and as a Galois module. We prove structural results and make predictions for the distribution of unit signature ranks and narrow…

Number Theory · Mathematics 2021-04-13 Benjamin Breen , Ila Varma , John Voight , appendix with Noam Elkies

We investigate bicomplex analogues of fundamental notions from classical algebraic number theory. In particular, we show that the primitive element theorem admits a natural generalization to bicomplex extensions, giving rise to two distinct…

Number Theory · Mathematics 2026-02-17 Hichem Gargoubi , Sayed Kossentini

We discuss properties of complex algebraic orbifold groups, their characteristic varieties, and their abelian covers. In particular, we deal with the question of (quasi)-projectivity of orbifold groups. We also prove a structure theorem for…

Algebraic Geometry · Mathematics 2012-03-09 Enrique Artal Bartolo , Jose Ignacio Cogolludo-Agustin , Daniel Matei

Given the finite field $\mathbb{F}_{q}$, for a prime power $q$, in this paper we present a way of constructing spreads of $\mathbb{F}_{q}^{n}$. They will arise as orbits under the action of an Abelian non-cyclic group. First, we construct a…

Information Theory · Computer Science 2025-01-29 Joan-Josep Climent , Veronica Requena , Xaro Soler-Escrivà

Theories of classification distinguish classes with some good structure theorem from those for which none is possible. Some classes (dense linear orders, for instance) are non-classifiable in general, but are classifiable when we consider…

Logic · Mathematics 2016-09-07 Wesley Calvert

Algebraic cycles on complex projective space P(V) are known to have beautiful and surprising properties. Therefore, when V carries a real or quaternionic structure, it is natural to ask for the properties of the groups of real or…

Algebraic Topology · Mathematics 2012-08-27 H. Blaine Lawson, , Paulo Lima-Filho , Marie-Louise Michelsohn

This paper aims to address the relation between a magic square of odd order $n$ and a group, and their properties. By the modulo number $n$, we construct entries for each table from initial table of magic square with large number $n^2$.…

Discrete Mathematics · Computer Science 2012-07-24 Mahyuddin K. M. Nasution

Let $p$ be a prime. In this paper, we compute complexities of some simple modules of symmetric groups labelled by two-part partitions. Most of the simple modules considered here are contained in the $p$-blocks with non-abelian defect…

Representation Theory · Mathematics 2018-10-03 Yu Jiang

We begin by considering faithful matrix representations of elementary abelian groups in prime characteristic. The representations considered are seen to be determined up to change of bases by a single number. Studying this number leads to a…

Number Theory · Mathematics 2023-04-18 H. E. A. Campbell , David L. Wehlau

Let $A$ be an abelian variety defined over a number field $K$ and let $A^{\vee}$ be the dual abelian variety. For an odd prime $p$, we consider two Selmer groups attached to $A[p]$ and relate the orders of these groups along with those of…

Number Theory · Mathematics 2025-02-10 Saikat Biswas

It is well known that the classical diagram lemmas of homological algebra for abelian groups can be generalized to non-abelian group-like structures, such as groups, rings, algebras, loops, etc. In this paper we establish such a…

K-Theory and Homology · Mathematics 2021-10-26 Amartya Goswami

Although the prime numbers are deterministic, they can be viewed, by some measures, as pseudo-random numbers. In this article, we numerically study the pair statistics of the primes using statistical-mechanical methods, especially the…

Statistical Mechanics · Physics 2018-02-15 Ge Zhang , Fausto Martelli , Salvatore Torquato

Recent investigations on the set of commutators between the elements of a finite group having relatively prime orders have prompt us to propose a variant of the Ore conjecture: For every finite non-abelian simple group and for every $g\in…

Group Theory · Mathematics 2025-04-07 Andrea Lucchini , Pablo Spiga

The polyadic integer numbers, which form a polyadic ring, are representatives of a fixed congruence class. The basics of polyadic arithmetic are presented: prime polyadic numbers, the polyadic Euler function, polyadic division with a…

Rings and Algebras · Mathematics 2017-11-09 Steven Duplij

We study the various term operations on the set of skew primitive elements of Hopf algebras, generated by skew primitive semi-invariants of an Abelian group of grouplike elements. All 1-linear binary operations are described and trilinear…

Quantum Algebra · Mathematics 2007-05-23 V. K. Kharchenko

Partitions of the set of primes are introduced based on the Chebyshev polynomials at rationals. The prime densities of all such partitions are established. Euler's Criterion for $SL(2,\mathbb Q)$ is formulated, which is the bridge between…

Number Theory · Mathematics 2020-08-04 Maciej P. Wojtkowski

We prove by using simple number-theoretic arguments formulae concerning the number of elements of a fixed order and the number of cyclic subgroups of a direct product of several finite cyclic groups. We point out that certain multiplicative…

Group Theory · Mathematics 2012-11-08 László Tóth

We study associative multiplications in semi-simple associative algebras over C compatible with the usual one or, in other words, linear deformations of semi-simple associative algebras over C. It turns out that these deformations are in…

Quantum Algebra · Mathematics 2007-05-23 Alexander Odesskii , Vladimir Sokolov

In this article, we introduce and study the concept of $\textit{spherical-vectors}$, which can be perceived as a natural extension of the arguments of complex numbers in the context of quaternions. We initially establish foundational…

Rings and Algebras · Mathematics 2023-05-09 Lahcen Lamgouni
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