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SUMMARY:Chrysostomos Psaroudakis (Aristotle University of Thessaloniki\, G
 reece)
DTSTART:20220505T110000Z
DTEND:20220505T120000Z
DTSTAMP:20260423T024800Z
UID:LAGOON/68
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/LAGOON/68/">
 Homological invariants of the arrow removal operation</a>\nby Chrysostomos
  Psaroudakis (Aristotle University of Thessaloniki\, Greece) as part of Lo
 ngitudinal Algebra and Geometry Open ONline Seminar (LAGOON)\n\n\nAbstract
 \nSeveral homological conjectures in representation theory are related wit
 h specific problems concerning the homological behaviour and the structure
  theory of finite dimensional algebras. In joint work with Edward Green an
 d Oyvind Solberg we developed new reduction techniques (vertex removal ope
 ration and arrow removal operation) on quotients of path algebras for test
 ing the finiteness of the finitistic dimension. In this talk\, we will rev
 iew these operations and we will focus on the arrow removal operation. In 
 particular\, we will show that Gorensteinness\, singularity categories and
  the finite generation condition Fg for the Hochschild cohomology are inva
 riants under the arrow removal operation for a finite dimensional algebra.
  This is joint work with Karin Erdmann and Oyvind Solberg.\n\nMeeting Link
 \nhttps://uni-koeln.zoom.us/j/91875528987?pwd=TjNZV1lNdVJNOWUrR2xNalRuQWk3
 dz09\n\nMeeting ID: 918 7552 8987\nPassword: LAGOON2022\n
LOCATION:https://researchseminars.org/talk/LAGOON/68/
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