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A formal description of quaternions by means of exterior calculus is presented. Considering a three-dimensional space-time characterized by three time-like coordinates, we have been able to consistently recover a suitable formulation of…

General Physics · Physics 2026-04-14 Ivano Colombaro

A function on an algebra is congruence preserving if, for any congruence, it maps pairs of congruent elements onto pairs of congruent elements. We show that on the algebra of complete binary trees whose leaves are labeled by letters of an…

Combinatorics · Mathematics 2020-06-09 A. Arnold , P. Cegielski , S. Grigorieff , I. Guessarian

Motivated by a model in quantum computation we study orthogonal sets of integral vectors of the same norm that can be extended with new vectors keeping the norm and the orthogonality. Our approach involves some arithmetic properties of the…

Number Theory · Mathematics 2022-03-22 Fernando Chamizo , Jorge Jiménez Urroz

Colour algebras over fields of odd characteristic are well-known noncommutative Jordan algebras. We define colour algebras more generally over a unital commutative associative ring with $\frac{1}{2}\in R$, and show that colour algebras can…

Rings and Algebras · Mathematics 2026-03-09 Susanne Pumpluen

This dissertation is about The history of quaternions and their associated rotation groups as it relates to theoretical physics.

History and Philosophy of Physics · Physics 2015-04-21 Johannes C. Familton

We present a general construction of the derived category of an algebra over an operad and establish its invariance properties. A central role is played by the enveloping operad of an algebra over an operad.

Algebraic Topology · Mathematics 2016-04-04 Clemens Berger , Ieke Moerdijk

An inifinite-dimensional representation of the double affine Hecke algebra of rank 1 and type $(C_1^{\vee},C_1)$ in which all generators are tridiagonal is presented. This representation naturally leads to two systems of polynomials that…

Representation Theory · Mathematics 2017-09-22 Satoshi Tsujimoto , Luc Vinet , Alexei Zhedanov

We study systems of quadratic forms over fields and their isotropy over 2-extensions. We apply this to obtain particular splitting fields for quaternion algebras defined over a finite field extension. As a consequence, we obtain that every…

Rings and Algebras · Mathematics 2024-01-29 Karim Johannes Becher , Fatma Kader Bingöl , David B. Leep

We study maximal subalgebras of an arbitrary finite dimensional algebra over a field, and obtain full classification/description results of such algebras. This is done by first obtaining a complete classification in the semisimple case, and…

Rings and Algebras · Mathematics 2017-08-31 Miodrag Iovanov , Alexander Sistko

In this paper we determine sufficient conditions for a quaternion algebra to split over a quadratic field. In the last section of the paper, we find a class of division symbol algebras of degree $n$ (where $n$ is a positive integer, $n\geq…

Number Theory · Mathematics 2016-10-25 Diana Savin

An algebraic deformation theory of module-algebras over a bialgebra is constructed. The cases of module-coalgebras, comodule-algebras, and comodule-coalgebras are also considered.

Rings and Algebras · Mathematics 2007-05-23 Donald Yau

We discuss the construction of oscillator-like systems associated with orthogonal polynomials on the example of the Fibonacci oscillator. In addition, we consider the dimension of the corresponding lie algebras.

Mathematical Physics · Physics 2015-03-02 V. V. Borzov , E. V. Damaskinsky

Answering a question of H. Petersson, we provide a class of examples of pair of octonion algebras over a ring having isometric norms.

Rings and Algebras · Mathematics 2019-08-15 Philippe Gille

The interior structure of arbitrary sets of quaternion units is analyzed using general methods of the theory of matrices. It is shown that the units are composed of quadratic combinations of fundamental objects having a dual mathematical…

General Physics · Physics 2012-11-08 Alexander P. Yefremov

Octonions are 8-dimensional hypercomplex numbers which form the biggest normed division algebras over the real numbers. Motivated by applications in theoretical physics, continuous octonionic analysis has become an area of active research…

Complex Variables · Mathematics 2024-11-27 Rolf Sören Kraußhar , Dmitrii Legatiuk

M\"obius transformations of the extended complex plane are at the crossroads of many interesting topics, e.g., they form a group under composition, are the simplest form of rational function, and are a path to Lie theory. Quaternionic…

Complex Variables · Mathematics 2015-06-02 Tony Thrall

Frobenius' Theorem states that the algebra of quaternions $\mathbb H$ is, besides the fields of real and complex numbers, the only finite-dimensional real division algebra. We first give a short elementary proof of this theorem, then…

Rings and Algebras · Mathematics 2019-12-18 Matej Brešar , Victor S. Shulman

We introduce the spin Hecke algebra, which is a q-deformation of the spin symmetric group algebra, and its affine generalization. We establish an algebra isomorphism which relates our spin (affine) Hecke algebras to the (affine)…

Representation Theory · Mathematics 2011-11-09 Weiqiang Wang

There is a growing interest in the logical possibility that exceptional mathematical structures (exceptional Lie and superLie algebras, the exceptional Jordan algebra, etc.) could be linked to an ultimate "exceptional" formulation for a…

High Energy Physics - Theory · Physics 2007-05-23 Francesco Toppan

The paper presents a classification of quadratic extension algebras, also known as algebras of degree 2, as well as several characterizations of quaternion algebras over a field (of characteristic not 2). The presentation is not restricted…

Rings and Algebras · Mathematics 2016-09-27 France Dacar