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DTSTART;TZID=America/Toronto:20231120T113000
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URL:https://uwaterloo.ca/combinatorics-and-optimization/events/algebraic-gr
 aph-theory-prem-nigam-kar
SUMMARY:Algebraic Graph Theory - Prem Nigam Kar
CLASS:PUBLIC
DESCRIPTION:TITLE: Quantum Automorphism Groups of Trees\n\nSPEAKER:\n Prem 
 Nigam Kar\n\nAFFILIATION:\n Technical University of Denmark\n\nLOCATION:\n
  Please contact Sabrina Lato for Zoom link.\n\nABSTRACT: We give a chara
 cterisation of quantum automorphism groups of\ntrees. In particular\, for 
 every tree\, we show how to iteratively\nconstruct its quantum automorphis
 m group using free products and free\nwreath products. This can be conside
 red a quantum version of\nJordan’s theorem for the automorphism groups o
 f trees. This is one\nof the first characterisations of quantum automorphi
 sm groups of a\nnatural class of graphs with quantum symmetry. This talk i
 s based on\nthe following preprint: https://arxiv.org/abs/2311.04891
DTSTAMP:20260404T085239Z
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