9 citations · 20 across the 4 of their papers we have counts for
4 papers
The complex of formal operations on the Hochschild chains of commutative algebras
Angela Klamt
We compute the homology of the complex of formal operations on the Hochschild complex of differential graded commutative algebras as defined by Wahl and prove that these can be bui…
Natural operations on the Hochschild complex of commutative Frobenius algebras via the complex of looped diagrams
Angela Klamt
We define a dg-category of looped diagrams which we use to construct operations on the Hochschild complex of commutative Frobenius dg-algebras. We show that we recover the operatio…
On the Ext algebras of parabolic Verma modules and A infinity-structures
Angela Klamt, Catharina Stroppel
We study the Ext-algebra of the direct sum of all parabolic Verma modules in the principal block of the Bernstein-Gelfand-Gelfand category O for the hermitian symmetric pair $(\mat…
A-infinity structures on the algebra of extensions of Verma modules in the parabolic category O
Angela Klamt
This is the author's diploma thesis. In the first part of the thesis the algebra structure on the Ext-spaces Ext^k(M(x), M(y)) of Verma modules M(x) and M(y) in the parabolic categ…