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math.KT2023
The Hochschild cohomology groups under gluing arrows
Yuming Liu, Lleonard Rubio y Degrassi, Can Wen
In a previous paper arXiv:2211.05435 we have compared the Hochschild cohomology groups of finite dimensional monomial algebras under gluing two idempotents. In the present paper, w…
math.RA2023★ 1 cited
Generalized parallel paths method for computing the first Hochschild cohomology group with applications to Brauer graph algebras
Yuming Liu, Bohan Xing
We use algebraic Morse theory to generalize the parallel paths method for computing the first Hochschild cohomology groups. As an application, we describe and compare the Lie struc…