授業の目的 【日本語】 Goals of the Course(JPN) | | 楕円量子群の表現について変形W代数や幾何学との関連も含めて解説する。楕円量子群の余代数構造により intertwining operator ( vertex operator ) が導出され、それを用いて楕円q-KZ方程式の積分解や変形W代数の相関関数、楕円 stable envelope や vertex function などの幾何学量がどのように導出されるのかを学ぶことが目的である。 |
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授業の目的 【英語】 Goals of the Course | | The goal of this course is to give a graduate-level introduction to representation theory of elliptic quantum groups (EQG), and its connection to the deformed W-algebras as well as geometry. A special emphasis is placed on a use of intertwining operators (vertex operators) which are determined by a co-algebra structure of the EQG. The vertex operators yield a construction of integral solutions to the elliptic q-KZ eq, correlation functions for the deformed W-algebras as well as important geometric objects such as elliptic stable envelopes and vertex functions. |
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到達目標 【日本語】 Objectives of the Course(JPN)) | | 楕円量子群の理解を深め、具体的な表現の構成や vertex operator を用いた計算に習熟する。 |
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到達目標 【英語】 Objectives of the Course | | To understand standard concepts appearing representation theory of EQG and to develop a skill of constructing some concrete representations as well as of calculating some representation theoretical objects by using the vertex operators. |
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授業の内容や構成 Course Content / Plan | | 1. 楕円量子群の定義、余代数構造 2. 有限次元・無限次元表現と Vertex operators 3. 重み関数、楕円q-KZ方程式の積分解 4. 有限次元テンソル積表現とGelfand-Tsetlin基底 5. 箙多様体の同変楕円コホモロジーとの対応 (1. Definition of the elliptic quantum group and its co-algebra structure 2. Finite and infinite dimensional representations and vertex operators 3. The weight functions and integral solution to the elliptic q-KZ eq. 4. Finite dimensional tensor product representations and the Gelfand-Tsetlin basis 5. Connection to the equivarent elliptic cohomology of quiver variety ) |
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履修条件 Course Prerequisites | | 特になし
Lectures will be given in Japanese. |
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関連する科目 Related Courses | | |
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成績評価の方法と基準 Course Evaluation Method and Criteria | | レポート:講義中に示す問題の中から2題を選んで解答。6割以上解答できれば合格。 |
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教科書・テキスト Textbook | | |
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参考書 Reference Book | | Hitoshi Konno, Elliptic quantum groups : Representations and related geometry, Springer 2020, ISBN:978-981-15-7386-6 |
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課外学習等(授業時間外学習の指示) Study Load(Self-directed Learning Outside Course Hours) | | affine Lie 環の自由場表現に慣れていると良い。 |
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注意事項 Notice for Students | | Lectures will be given in Japanese. |
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他学科聴講の可否 Propriety of Other department student's attendance | | |
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他学科聴講の条件 Conditions of Other department student's attendance | | |
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レベル Level | | |
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キーワード Keyword | | 量子群、affine Lie 環、頂点作用素、q-KZ方程式、W-代数、箙多様体、stable envelope |
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履修の際のアドバイス Advice | | |
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授業開講形態等 Lecture format, etc. | | |
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遠隔授業(オンデマンド型)で行う場合の追加措置 Additional measures for remote class (on-demand class) | | |
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