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SUMMARY:The Flow equations of the renormalization group - Christoph Kopper
  (École Polytechnique)
DTSTART:20180906T150000Z
DTEND:20180906T160000Z
UID:TALK109276@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:The Flow equations in Polchinski&#39\;s setting allow for a si
 mple and transparent proof of perturbative renormalizability\, cirumventin
 g auxiliary combinatoric structures.    They also permit to prove properti
 es of perturbative Schwinger functions which are out of reach in other set
 tings. The main problem for a nonperturbative  analysis of those equations
  lies in their combinatoric instability\, which is present already at the 
 mean field level.
LOCATION:Seminar Room 1\, Newton Institute
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