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UID:4367b3f601037178c36ecd3538b6fdc7
DTSTAMP:20260715T202044Z
SUMMARY:Scott Warrander (Glasgow) – Stable Envelopes and Quantum Affine A
 lgebras
DESCRIPTION:Stable envelopes were introduced by Maulik and Okounkov in coho
 mology\, then by Okounkov and Smirnov in K-theory\, to provide geometric c
 onstructions of R-matrices with spectral parameters (among other applicati
 ons\, such as in enumerative geometry). In the cohomology case this story 
 applies to Yangians\, while the K-theory case is concerned with quantum af
 fine algebras. In this talk we will introduce stable envelopes in the cont
 ext of equivariant K-theory of Nakajima quiver varieties. We will then see
  how they can be applied to studying quantum affine algebras\, building to
  the definition of the so called Maulik-Okounkov quantum affine algebra.
URL:https://www.imperial.ac.uk/events/211450/scott-warrander-glasgow-stable
 -envelopes-and-quantum-affine-algebras/
DTSTART;TZID=Europe/London:20260709T110000
DTEND;TZID=Europe/London:20260709T120000
LOCATION:410\, Huxley Building\, South Kensington Campus\, Imperial College
  London\, London\, SW7 2AZ\, United Kingdom
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