40 citations · 150 across the 28 of their papers we have counts for
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On Matrix Quantum Groups of type
Phung Ho Hai
Given a Hecke symmetry , one can define a matrix bialgebra and a matrix Hopf algebra , which are called function rings on the matrix quantum semi-group and matrix qua…
Central bialgebras in Braided Categories and Coquasitriangular Structures
Phung Ho Hai
Central bialgebras in a braided category $\C$ are algebras in the center of the category of coalgebras in $\C$. On these bialgebras another product can be defined, which plays the…
On The Structure of Quantum Super Groups GL
Phung Ho Hai
We show that a quantum super matrix in standard format is invertible if and only if its block matrices of even entries are invertible. We prove the q-analog of the well-known formu…
Koszul Property and Poincare' Series of Matrix-Bialgebras of Type
Phung Ho Hai
Bialgebras associated to Yang-Baxter operators satisfying the Hecke equation, are considered. It is shown that they are Koszul algebras. Their Poincare' series are calculated via t…