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SUMMARY:Richard Szabo
DTSTART:20210426T150000Z
DTEND:20210426T160000Z
DTSTAMP:20260423T021343Z
UID:NCGandPH/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NCGandPH/4/"
 >A new look at symmetries in noncommutative field theory.</a>\nby Richard 
 Szabo as part of Noncommutative Geometry and Physics\n\n\nAbstract\n<p ali
 gn="justify">I will describe a new class of noncommutative field theories\
 , building on many older works in the literature\, which possess 'braided 
 gauge symmetries'. Their construction is motivated by recent attempts to r
 elieve the constraints imposed by conventional star-gauge symmetries and t
 heir tension with twisted diffeomorphisms\, and by the modern perspective 
 on classical field theories based on homotopy algebras. I will review all 
 of the necessary background\, focusing on the case of diffeomorphism invar
 iant theories for illustration. As an example\, I will show how these cons
 iderations lead to a new theory of noncommutative gravity in four dimensio
 ns within the Einstein-Cartan-Palatini formalism.</p>\n
LOCATION:https://researchseminars.org/talk/NCGandPH/4/
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