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TZID:Europe/Berlin
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UID:2557@qft.physik.hu-berlin.de
DTSTART;TZID=Europe/Berlin:20260715T133000
DTEND;TZID=Europe/Berlin:20260715T143000
DTSTAMP:20260713T062902Z
URL:https://qft.physik.hu-berlin.de/next-seminars/sara-maggio-u-bonn/
SUMMARY:Sara Maggio (U. Bonn) - 
DESCRIPTION:Speaker: Sara Maggio\n\nTitle: Twisted (Co-)homology\, two appl
 ications for Feynman integrals\n\nAbstract: Twisted (co-)homology provides
  a natural mathematical framework for dimensionally regulated Feynman inte
 grals. In this talk\, I will begin with a brief introduction to the basic 
 ideas of this framework. I will then discuss two recent developments. Firs
 t\, I will explain how intersection matrices can be used to constrain cano
 nical\, (epsilon-factorised)\, systems of differential equations\, includi
 ng examples beyond the polylogarithmic setting. Second\, I will show how s
 ymmetries of Feynman integrals can be formulated and studied within twiste
 d (co)homology. A central outcome is a formula for counting master integra
 ls in the presence of symmetries. These results illustrate applications of
  twisted (co-)homology that go beyond its original use in deriving integra
 tion-by-parts relations.
CATEGORIES:Pizza Seminars
LOCATION:Room 1.221\, IRIS building\, Zum großen Windkanal 6\, Berlin\, 12
 489\, Germany
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Zum großen Windkanal 6\, B
 erlin\, 12489\, Germany;X-APPLE-RADIUS=100;X-TITLE=Room 1.221\, IRIS build
 ing:geo:0,0
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TZID:Europe/Berlin
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DTSTART:20260329T030000
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