Cohomology rings of the plactic monoid algebra via a Gröbner–Shirshov basis
Abstract
In this paper, we calculate the cohomology ring Ext∗𝕜Pln(𝕜,𝕜) and the Hochschild cohomology ring of the plactic monoid algebra 𝕜Pln via the Anick resolution using a Gröbner–Shirshov basis.
Communicated by E. Zelmanov