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SUMMARY:Coequational resurgence and WKB analysis - Frederic Fauvet (Univer
 sity of Strasbourg)
DTSTART:20220912T123000Z
DTEND:20220912T133000Z
UID:TALK178094@talks.cam.ac.uk
DESCRIPTION:[ Joint work with Shingo Kamimoto (Hiroshima) and David Sauzin
  (Paris) ]&nbsp\;We address the resurgence properties of the WKB expansion
 s for the stationary Schr&ouml\;dinger equation in one dimension\, with a 
 polynomial potential\, and the associated Riccati equation. We decompose t
 he relevant series as infinite sums\, indexed by words or decorated trees\
 , of simpler components and prove\, for these functions\, the crucial prop
 erty of endless analytic continuability in the Borel plane.
LOCATION:No Room Required
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