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DTSTAMP:20191107T010509Z
DTSTART;TZID=America/Los_Angeles:20191108T110000
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SUMMARY:String-Math Seminar: Logarithmic VOAs from 3d boundary chiral algebras
UID:129583-ucb-events-calendar@berkeley.edu
ORGANIZER;CN="UC Berkeley Calendar Network":
LOCATION:402 LeConte Hall
DESCRIPTION:Sergei Gukov\, CalTech\n\nI will give an overview and some of the highlights of a research program initiated in 2013 with Gadde and Putrov\, the main subject of which is the study of 2d-3d combined systems that involve 3d N=2 theories with 2d N=(0\,2) boundary conditions. We will see how holomorphic-topological twists of such systems lead to boundary chiral algebras\, somewhat similar to Beem-Rastelli chiral algebras of 4d N=2 theories. In particular\, just like the characters of Beem-Rastelli chiral algebras are computed by the so-called Schur index of 4d N=2 theories\, characters of our boundary chiral algebras are computed by the "half-index" of 2d-3d combined systems\, also introduced in the above-mentioned work with Gadde and Putrov. It was originally motivated by applications to topology\, which are the subject of the math colloquium on Thursday.
URL:http://events.berkeley.edu/index.php/calendar/sn/pubaff.html?event_ID=129583&view=preview
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