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SUMMARY:Javier Fresán: Quadratic relations between Bessel moments
DTSTART;VALUE=DATE-TIME:20210421T090000Z
DTEND;VALUE=DATE-TIME:20210421T100000Z
DTSTAMP;VALUE=DATE-TIME:20221001T175700Z
UID:indico-event-6631@indico.math.cnrs.fr
DESCRIPTION:Javier Fresán\n\nQuadratic relations between Bessel moments\n
A number of classical relations between periods\, such as Legendre's relat
ion for periods of elliptic curves\, arise from the compatibility of the i
ntersection pairing on de Rham and Betti cohomology with the period isomor
phism. In the first part of the talk\, I will give a friendly introduction
to this phenomenon\, with emphasis on how to compute intersection matrice
s. In the second part\, I will explain how to interpret the moments of the
Bessel functions as periods and derive quadratic relations between them t
hat were found empirically by Broadhurst and Roberts. The talk is based on
joint work with Claude Sabbah and Jeng-Daw Yu [arXiv:2006.02702].\n\n---
\n\nThis is the page for the online seminar on motives and period integral
s in Quantum field theory and String theory.\n\nThe seminars will solely t
ake place online\n\n\nZoom Meeting ID: 264 969 3492\nPasswords: sent to
participants by email the day before the seminar via the mailing list.\nIf
you are interested in joigning this seminar series you should contact the
organisers.\n\nhttps://indico.math.cnrs.fr/event/6631/
URL:https://indico.math.cnrs.fr/event/6631/
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