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URL:/combinatorics-and-optimization/events/algebraic-gr
 aph-theory-prem-nigam-kar
SUMMARY:Algebraic Graph Theory - Prem Nigam Kar
CLASS:PUBLIC
DESCRIPTION:Summary \n\nTITLE: Quantum Automorphism Groups of Trees\n\nSPEA
 KER:\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 characterisation of quantum automorphism groups of\ntrees. In parti
 cular\, for every tree\, we show how to iteratively\nconstruct its quantum
  automorphism group using free products and free\nwreath products. This ca
 n be considered a quantum version of\nJordan’s theorem for the automorph
 ism groups of trees. This is one\nof the first characterisations of quantu
 m automorphism groups of a\nnatural class of graphs with quantum symmetry.
  This talk is based on\nthe following preprint: https://arxiv.org/abs/2311
 .04891\n 
DTSTAMP:20250830T145332Z
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