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This article describes recent applications of algebraic geometry to noncommutative algebra. These techniques have been particularly successful in describing graded algebras of small dimension.

Rings and Algebras · Mathematics 2007-05-23 J. T. Stafford

In the present paper, we describe some experiences in using programming, commands and graphical interfaces based on computer algebra systems, as tools for learning Physics and Mathematics.

Physics Education · Physics 2014-01-08 Danilo T. Alves , Silvio C. F. Pereira Filho

We discuss a selection of recent developments in arithmetic combinatorics having to do with ``approximate algebraic structure'' together with some of their applications.

Number Theory · Mathematics 2014-04-02 Ben Green

The paper presents the geometry of Lie algebroids and its applications to optimal control. The first part deals with the theory of Lie algebroids, connections on Lie algebroids and dynamical systems defined on Lie algebroids (mainly…

Differential Geometry · Mathematics 2013-02-26 Liviu Popescu

Using the index theory of seaweed algebras, we explore various new integer partition statistics. We find relations to some well-known varieties of integer partitions as well as a surprising periodicity result.

Combinatorics · Mathematics 2018-10-10 Vincent Coll , Andrew Mayers , Nick Mayers

We prove some isomorphisms between exceptional W-algebras associated with exceptional simple Lie algebras.

Quantum Algebra · Mathematics 2024-08-19 Jethro van Ekeren , Shigenori Nakatsuka

We use one-dimensional double affine Hecke algebras to introduce q-counterparts of the Gauss integrals and new types of Gauss-Selberg sums at roots of unity.

Quantum Algebra · Mathematics 2007-05-23 Ivan Cherednik

This paper, based on recent research, articulates the opportunities and challenges posed by an emerging area of study known as ``mediumband wireless communication'', which refers to digital radio-frequency (RF) wireless communication…

Information Theory · Computer Science 2024-09-04 Dushyantha A Basnayaka

After reviewing the three well-known methods to obtain Lie algebras and superalgebras from given ones, namely, contractions, deformations and extensions, we describe a fourth method recently introduced, the expansion of Lie (super)algebras.…

High Energy Physics - Theory · Physics 2008-11-26 J. A. de Azcarraga , J. M. Izquierdo , M. Picon , O. Varela

In this exposition, I discuss several developments in the theory of vertex operator algebras, and I include motivation for the definition.

Quantum Algebra · Mathematics 2007-06-28 James Lepowsky

A very basic introduction is given to the r\^oles of division algebras and the related sphere algebras concerning the structure of space-time in the dimensionalities $D\is 3,4,6$ and $10$, with special emphasis on twistors transformations…

High Energy Physics - Theory · Physics 2007-05-23 Martin Cederwall

Expander graphs have been, during the last five decades, the subject of a most fruitful interaction between pure mathematics and computer science, with influence and applications going both ways (cf. [Lub94], [HLW06], [Lub12] and the…

Group Theory · Mathematics 2017-12-08 Alexander Lubotzky

The aim of this paper is to organize some known mass formulas arising from a definite central division algebra over a global field and to deduce some more new ones.

Number Theory · Mathematics 2014-08-26 Chia-Fu Yu

A statistical mechanical framework to analyze linear vector channel models in digital wireless communication is proposed for a large system. The framework is a generalization of that proposed for code-division multiple-access systems in…

Information Theory · Computer Science 2007-11-06 Koujin Takeda , Atsushi Hatabu , Yoshiyuki Kabashima

By applying a recent construction of free Baxter algebras, we obtain a new class of Hopf algebras that generalizes the classical divided power Hopf algebra. We also study conditions under which these Hopf algebras are isomorphic.

Rings and Algebras · Mathematics 2007-05-23 George E. Andrews , Li Guo , William Keigher , Ken Ono

This is our final issue of the quick primer on the use of Python to build a wireless communications prototype. This prototype simulates multiple-input and multiple-output (MIMO) systems for a single orthogonal frequency division…

Networking and Internet Architecture · Computer Science 2025-05-21 Faris B. Mismar

Graphical (Linear) Algebra is a family of diagrammatic languages allowing to reason about different kinds of subsets of vector spaces compositionally. It has been used to model various application domains, from signal-flow graphs to Petri…

Logic in Computer Science · Computer Science 2021-11-09 Guillaume Boisseau , Robin Piedeleu

The new demands for high-reliability and ultra-high capacity wireless communication have led to extensive research into 5G communications. However, the current communication systems, which were designed on the basis of conventional…

Signal Processing · Electrical Eng. & Systems 2019-04-23 Hongji Huang , Song Guo , Guan Gui , Zhen Yang , Jianhua Zhang , Hikmet Sari , Fumiyuki Adachi

Wireless communication systems can be enhanced at the link level, in medium access, and at the network level when transceivers are equipped with full-duplex capability: the transformative ability to simultaneously transmit and receive over…

Signal Processing · Electrical Eng. & Systems 2022-10-18 Ian P. Roberts , Himal A. Suraweera

We propose a process algebra for wireless mesh networks that combines novel treatments of local broadcast, conditional unicast and data structures. In this framework, we model the Ad-hoc On-Demand Distance Vector (AODV) routing protocol and…

Logic in Computer Science · Computer Science 2015-12-24 Ansgar Fehnker , Rob van Glabbeek , Peter Höfner , Annabelle McIver , Marius Portmann , Wee Lum Tan