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math.OA2018★ 16 cited
Quantum automorphisms of folded cube graphs
Simon Schmidt
We show that the quantum automorphism group of the Clebsch graph is . This answers a question by Banica, Bichon and Collins from 2007. More general for odd , the quan…
math.OA2018★ 8 cited
The Petersen graph has no quantum symmetry
Simon Schmidt
In 2007, Banica and Bichon asked whether the well-known Petersen graph has quantum symmetry. In this article, we show that the Petersen graph has no quantum symmetry, i.e. the quan…
math.OA2017★ 16 cited
Quantum Symmetries of Graph C*-Algebras
Simon Schmidt, Moritz Weber
The study of graph C*-algebras has a long history in operator algebras. Surprisingly, their quantum symmetries have never been computed so far. We close this gap by proving that th…