𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Cohomology of Infinitesimal Quantum Algebras

✍ Scribed by Masaharu Kaneda


Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
346 KB
Volume
226
Category
Article
ISSN
0021-8693

No coin nor oath required. For personal study only.

✦ Synopsis


Let ᑡ be a simply connected simple ‫ކ‬ -group, let ᑜ be a Borel p ؒ Ž . subgroup of ᑡ, and let H ᑡrᑜ, ? be the right-derived functors of the induction from the category of ᑜ-modules to the category of ᑡ-modules. Let ᑠ ᒏ: ᑡ ª ᑡ Ž1. be the Frobenius morphism and define the functors

H ᑡ rᑜ , ? likewise. If M is a ᑜ -module, one has, due indepenw x w x dently to Andersen A80 and Haboush H , an isomorphism of ᑡ-ؒ Ž ᑠ ᒏ

. ᑠ ᒏ ؒ Ž Ž1.

Ž 1.

.


📜 SIMILAR VOLUMES


Cohomology of Schematic Algebras
✍ Fred Van Oystaeyen; Luc Willaert 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 173 KB
Hochschild Cohomology of Triangular Matr
✍ Sandra Michelena; Marı́a Inés Platzeck 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 176 KB

We study the Hochschild cohomology of triangular matrix rings B s , where A and R are finite dimensional algebras over an algebraically closed field K and M is an A-R-bimodule. We prove the existence of two long exact sequences of K-vector spaces relating the Hochschild cohomology of A, R, and B. ᮊ

André–Quillen Cohomology of Monoid Algeb
✍ Klaus Altmann; Arne B. Sletsjøe 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 101 KB

The best results are obtained either in the general case for the first three cohomology groups, or in the case of isolated singularities for all cohomology groups, respectively.

On Hochschild Cohomology of Preprojectiv
✍ Karin Erdmann; Nicole Snashall 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 273 KB

We study the Hochschild cohomology of a finite-dimensional preprojective algebra; this is periodic by a result of A. Schofield. We determine the ring structure of the Hochschild cohomology ring given by the Yoneda product. As a result we obtain an explicit presentation by generators and relations.

On Hochschild Cohomology of Preprojectiv
✍ Karin Erdmann; Nicole Snashall 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 268 KB

We study the Hochschild cohomology of a finite-dimensional preprojective algebra ⌳; this is periodic by a result of Schofield. In particular, for ⌳ of type A , n we obtain the dimensions and explicit characterizations and bases for all Hochschild cohomology groups.