HOPF HEAPS AND HOPF ALGEBRAS OF TRANSLATIONS

Prelegent(ci)

TOMASZ BRZEZIŃSKI

Afiliacja

Prifysgol Abertawe, Cymru

Termin

17 kwietnia 2024 17:15

Link

https://uw-edu-pl.zoom.us/j/95105055663?pwd=TTIvVkxmMndhaHpqMFUrdm8xbzlHdz09

Informacje na temat wydarzenia

405 IMPAN & ZOOM

Seminarium

North Atlantic Noncommutative Geometry Seminar

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Grunspan and Schauenburg have proven that quantum torsors (introduced by the former) are closely connected with Hopf-Galois objects. In this talk, I will present, in part, the dualisation of this connection and, in part, a new characterisation of quantum cotorsors, or Hopf heaps, in terms of Galois-type actions of the associated translation Hopf algebras (not available in the dual setup). The talk is based on a joint work with Małgorzata Hryniewicka.

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