Hongbo Yin

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math.RT2013

Mutation graphs of maximal rigid modules over finite dimensional preprojective algebras

Hongbo Yin, Shunhua Zhang

Let $Q$ be a finite quiver of Dynkin type and $Λ = Λ_{Q}$ be the preprojective algebra of $Q$ over an algebraically closed field $k$ . Let $T_{Λ}$ be the mutation graph of maxi…

math.RT2012

Endomorphism algebras arising from mutations

Genhua Pei, Hongbo Yin, Shunhua Zhang

Let $A$ be a finite dimensional algebra over an algebraically closed field $k$ , $D^{b} (A)$ be the bounded derived category of $A$ -mod and $A^{(m)}$ be the $m$ -replicated a…

math.RT2012

The matrix between PBW basis and semicanonical basis of $U^{+} (s l_{n} (C))$

Hongbo Yin, Shunhua Zhang

In this paper, we prove that the matrix between a special PBW basis and the semicanonical basis of $U^{+} (s l_{n} (C))$ is upper triangular unipotent under any order which is co…

Mutation graphs of maximal rigid modules over finite dimensional preprojective algebras

Endomorphism algebras arising from mutations

The matrix between PBW basis and semicanonical basis of U+(sln​(C))

The matrix between PBW basis and semicanonical basis of $U^{+} (s l_{n} (C))$