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SUMMARY:Ozgun Unlu (Bilkent University)
DTSTART:20260504T130000Z
DTEND:20260504T140000Z
DTSTAMP:20260525T015500Z
UID:BilTop/138
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/BilTop/138/"
 >Counterexamples to the Oozing Conjecture (Part II)</a>\nby Ozgun Unlu (Bi
 lkent University) as part of Bilkent Topology Seminar\n\nLecture held in S
 A 141.\n\nAbstract\nI will begin with a brief introduction to surgery theo
 ry and assembly maps. I will then discuss joint work with Ian Hambleton\, 
 in which we construct counterexamples to the Oozing conjecture. The Oozing
  Conjecture predicts that Arf-type surgery obstructions do not produce new
  classes under sufficiently high-codimension products. Examples of Morgan
 –Pardon and Cappell–Shaneson exhibit non-triviality in codimensions 2 
 and 3\, respectively. We give a new example in codimension 4.\n
LOCATION:https://researchseminars.org/talk/BilTop/138/
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