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2019 Fiscal Year Final Research Report

Gepmrtic study of quantum groups and its applications

Research Project

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Project/Area Number 16K05055
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Algebra
Research InstitutionRikkyo University (2017-2019)
The University of Tokyo (2016)

Principal Investigator

SAITO Yoshihisa  立教大学, 理学部, 教授 (20294522)

Project Period (FY) 2016-04-01 – 2020-03-31
Keywords量子包絡代数
Outline of Final Research Achievements

In resent study of mathematical physics (string theory, especially), it is known that toroidal Lie algebras (LTA), and quantum toroidal algebras (QTA) play important roles. In this reseach project, we investigate the structure of these algebras in uniform way, by using the theory of elliptic root systems. Especially, we prove that these algebras have an elliptic modular group action induced from one on elliptic root systems. We believe these properties are quite
important in the future study of these algebras.

Free Research Field

代数学

Academic Significance and Societal Importance of the Research Achievements

本研究の対象となるTLA及びQTAは,近年弦理論を始めとして様々な分野で注目を浴びている代数系であるが,既存の手法が殆ど役に立たないとの理由から組織的な研究は殆ど行われて来なかった.本研究では楕円ルート系の理論を用いてこの代数系を調べ,楕円モジュラー群がTLA, QTAに作用することを示した.これは,既存のルート系の理論,リー代数,量子包絡代数には無かった全く新しい性質であり,今後の当該代数の研究に重要な役割を果たすことが期待される.

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Published: 2021-02-19  

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