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CATEGORIES:Algebra seminar
SUMMARY:Picard groups of blocks and Donovanâ€™s conjecture -
Florian Eisele (Glasgow)
DTSTART:20190227T143000Z
DTEND:20190227T153000Z
UID:TALK3580AT
URL:/talk/index/3580
DESCRIPTION:While the outer automorphism group of a block over
an algebraically closed field of characteristic p
is usually an infinite group\, it was recently ob
served by Boltje\, Kessar and Linckelmann that the
outer automorphism group of a block defined over
a suitable discrete valuation ring is finite in al
l known examples.\n\nAs of yet there is no general
explanation for the finiteness of these outer aut
omorphism groups\, and the closely related Picard
groups of blocks. I will talk about recent results
on the structure of these groups\, and an applica
tion to Donovanâ€™s conjecture (which is joint work
with C. Eaton and M. Livesey).
LOCATION:Watson Building\, Lecture Room C
CONTACT:Chris Parker
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