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SUMMARY:Canonical Feynman integrals and cohomology of GL_n - Francis Brown
  (University of Oxford)
DTSTART:20220824T080000Z
DTEND:20220824T090000Z
UID:TALK177224@talks.cam.ac.uk
DESCRIPTION:Since the first connections between Feynman integrals and numb
 er theory were observed in the 1990's\, a huge effort has gone into develo
 ping&nbsp\;mathematics to better understand perturbative quantum field the
 ory. Nonetheless\, it is still an open question whether Feynman integrals 
 admit a direct geometric interpretation within pure mathematics. In this t
 alk I shall consider stable cohomology classes on real\, complex\, and qua
 ternionic general linear groups\, and show that their integrals provide a 
 specific class of Feynman integrals in 2 and 4 spacetime dimensions with r
 emarkable properties.
LOCATION:Seminar Room 1\, Newton Institute
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