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Using Bessel-Muirhead system, we can express the K-bessel function defined on a Jordan algebra as linear combination of the J-solutions. We determine explicitly the coefficients when the rank of this Jordan algebra is three after a…

Classical Analysis and ODEs · Mathematics 2007-05-23 Hacen Dib

Let R be a ring and G a group. An R-module A is said to be artinian-by-(finite rank) if TorR(A) is artinian and A/TorR(A) has finite R-rank. The authors study ZG-modules A such that A/CA(H) is artinian-by-(finite rank) (as a Z-module) for…

Group Theory · Mathematics 2013-02-11 Leonid A. Kurdachenko , Igor Ya. Subbotin , Vasiliy A. Chepurdya

This paper concerns self-similar tilings in dimension 2. We consider the number of occurrences of a given tile in any domain bounded by a Jordan curve. For a large class of self-similar tilings, including most known examples, we give…

Mathematical Physics · Physics 2015-05-19 J. Aliste-Prieto , D. Coronel , J. -M. Gambaudo

Recently G. Bhattacharyya, S.Y. Song and R. Tanaka began to study Terwilliger algebras of wreath products of one-class association schemes. K. Kim determined the structure of Terwilliger algebras of wreath products by one-class association…

Rings and Algebras · Mathematics 2015-03-10 Kijung Kim

We consider the problem of counting the number of possible sets of rankings (called ranking patterns) generated by unfolding models of codimension one. We express the ranking patterns as slices of the braid arrangement and show that all…

Combinatorics · Mathematics 2011-06-10 Hidehiko Kamiya , Akimichi Takemura , Hiroaki Terao

Let $M_n$ denote the algebra of $n \times n$ complex matrices and let $\mathcal{A}\subseteq M_n$ be an arbitrary structural matrix algebra, i.e. a subalgebra of $M_n$ that contains all diagonal matrices. We consider injective maps $\phi :…

Rings and Algebras · Mathematics 2025-11-26 Ilja Gogić , Mateo Tomašević

The Terwilliger algebras of association schemes over an arbitrary field $\mathbb{F}$ were called the Terwilliger $\mathbb{F}$-algebras of association schemes in [8]. In this paper, we study the Terwilliger $\mathbb{F}$-algebras of factorial…

Combinatorics · Mathematics 2024-03-14 Yu Jiang

In positive characteristic the Jordan plane covers a finite-dimensional Nichols algebra that was described by Cibils, Lauve and Witherspoon and we call the restricted Jordan plane. In this paper the characteristic is odd. The defining…

Quantum Algebra · Mathematics 2020-02-10 Nicolás Andruskiewitsch , Héctor Peña Pollastri

We consider cones in a Hilbert space associated to two von Neumann algebras and determine when one algebra is included in the other. If a cone is assocated to a von Neumann algebra, the Jordan structure is naturally recovered from it and we…

Operator Algebras · Mathematics 2011-02-01 Yoh Tanimoto

We describe multiple correlations of Jordan and Cartan spectra for any finite number of Anosov representations of a finitely generated group. This extends our previous work on correlations of length and displacement spectra for rank one…

Dynamical Systems · Mathematics 2025-03-03 Michael Chow , Hee Oh

We introduce a family of toric algebras defined by maximal chains of a finite distributive lattice. Applying results on stable set polytopes we conclude that every such algebra is normal and Cohen-Macaulay, and give an interpretation of its…

Commutative Algebra · Mathematics 2024-03-13 Oleksandra Gasanova , Lisa Nicklasson

When studying the properties of a ring $R$, it is often useful to compare $R$ to other rings whose properties are already known. In this paper, we define three ways in which a subring $R$ might be compared to a larger ring $T$: being…

Commutative Algebra · Mathematics 2025-07-03 Grant Moles

We determine the isomorphism classes of Jordan algebras in dimension two over the field of real numbers. Using techniques of non-standard analysis we study the properties of the variety of Jordan algebras, and also the contractions among…

Rings and Algebras · Mathematics 2007-05-23 J. M. Ancochea Bermudez , R. Campoamor-Stursberg , L. Garcia Vergnolle , J. Sanchez Hernandez

We construct via Fra\"iss\'e amalgamation an $\omega$-categorical structure whose automorphism group is an infinite oligomorphic Jordan primitive permutation group preserving a `limit of $D$-relations'. The construction is based on a…

Group Theory · Mathematics 2020-09-11 Asma Ibrahim Almazaydeh , Dugald Macpherson

We apply the quaternionic Jordan form to classify the hypercomplex nilpotent almost abelian Lie algebras in all dimensions and to carry out the complete classification of 12-dimensional hypercomplex almost abelian Lie algebras. Moreover, we…

Differential Geometry · Mathematics 2024-11-04 Adrián Andrada , María Laura Barberis

Generalizing supertropical algebras, we present a "layered" structure, "sorted" by a semiring which permits varying ghost layers, and indicate how it is more amenable than the "standard" supertropical construction in factorizations of…

Commutative Algebra · Mathematics 2011-08-16 Zur Izhakian , Manfred Knebusch , Louis Rowen

This paper explores the behaviour of commuting Jordan derivations over prime rings with non-trivial idempotents and demonstrates that they become zero maps. Further, it establishes this result for commuting Jordan higher derivations over…

Rings and Algebras · Mathematics 2024-12-13 Sk. Aziz , Om Prakash , Arindam Ghosh

We introduce a new concept of rank - relative rank associated to a filtered collection of polynomials. When the filtration is trivial our relative rank coincides with Schmidt rank (also called strength). We also introduce the notion of…

Commutative Algebra · Mathematics 2024-03-07 Amichai Lampert , Tamar Ziegler

Without the faithful assumption, we prove that every Jordan derivation on a class of path algebras of quivers without oriented cycles is a derivation and that every Lie derivation on such kinds of algebras is of the standard form.

Rings and Algebras · Mathematics 2012-03-23 Yanbo Li , Feng Wei

A noncommutative Jordan algebra of a specific type is attached to any (-1,-1)-balanced Freudenthal Kantor triple system, in such a way that the triple product in this system is determined by the binary product in the algebra. Over fields of…

Rings and Algebras · Mathematics 2007-05-23 Alberto Elduque , Noriaki Kamiya , Susumu Okubo