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BEGIN:VEVENT
DTSTAMP:20260306T091516Z
DTSTART:20260310T140000Z
DTEND:20260310T150000Z
SUMMARY:Heilbronn Algebra Seminar - Lleonard Rubio y Degrassi
UID:{http://www.columbasystems.com/customers/uom/gpp/eventid/}i1fi-mkgsm4
 xu-fpw5rv
DESCRIPTION:Title: Outer derivations on blocks of group algebras\n\nAbstr
 act : Let G be a finite group and let k be a field whose characteristic 
 divides the order of G. The derivation problem for group algebras asks w
 hether HH^1(kG):=Der(kG)/Inn(kG)\, the space of k-linear derivations mod
 ulo inner derivations\, is nonzero. Fleischmann\, Janiszczak\, and Lempk
 en proved that kG always possesses a non-inner derivation in this case.\
 n\nLinckelmann posed a blockwise version of this result as a conjecture:
  if B is a non-semisimple block of the group algebra kG\, then HH^1(B) i
 s nonzero. In this talk\, I will focus on recent advances on this conjec
 ture. This is all joint work with Benjamin Briggs.
STATUS:TENTATIVE
TRANSP:TRANSPARENT
CLASS:PUBLIC
LOCATION:Frank Adams 1\, Alan Turing Building\, Manchester
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