Hochschild (co)homology of exterior algebras using algebraic Morse theory |
| |
Authors: | Leon Lampret Ale? Vavpeti? |
| |
Institution: | 1. Institute for Mathematics, Physics and Mechanics, Ljubljana, Slovenia;2. Faculty of Mathematics and Physics, Department of Mathematics, University of Ljubljana, Slovenialampretl@gmail.com;4. Faculty of Mathematics and Physics, Department of Mathematics, University of Ljubljana, Slovenia |
| |
Abstract: | In 1 Han, Y., Xu, Y. (2007). Hochschild (co)homology of exterior algebras. Comm. Algebra 35(1):115–131.Web of Science ®] , Google Scholar]], the authors computed the additive and multiplicative structure of HH*(A;A), where A is the n-th exterior algebra over a field. In this paper, we derive all their results using a different method (AMT) as well as calculate the additive structure of HHk(A;A) and HHk(A;A) over ?. We provide concise presentations of algebras HH?(A;A) and HH*(A;A) as well as determine their generators in the Hochschild complex. Finally, we compute an explicit free resolution (spanned by multisets) of the Ae-module A and describe the homotopy equivalence to its bar resolution. |
| |
Keywords: | Acyclic matching algebraic combinatorics chain complex discrete/algebraic Morse theory exterior algebra homological algebra minimal free bimodule resolution |
|
|