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SUMMARY:Tame complexes\, L2-invariants and the Hanna Neumann conjecture [M
 PIM]
DTSTART:20251023T143000Z
DTEND:20251023T160000Z
DTSTAMP:20260420T151600Z
UID:indico-event-829@math-events.uni-bonn.de
DESCRIPTION:Speakers: Ismael Morales (MPIM)\n\nOberseminar Differentialgeo
 metrie\nI will talk about a joint article with Sam Fisher where we address
  the Hanna Neumann conjecture for limit groups. Roughly\, its original for
 mulation states that if G is a free group and H and K are subgroups of ran
 k N and M\, respectively\; then the rank of the intersection is at most th
 e product NM. Combining ideas of Antolin\, Jaikin\, Wilton and Wise (among
  others)\; we establish an analogous statement for any limit group by stud
 ying the geometry of its subgroups in relation to certain induced maps in 
 L2-homology.\n\nhttps://math-events.uni-bonn.de/event/829/
LOCATION:MPIM\, Vivatsgasse\,  7 - Seminar Room (Max Planck Institute for 
 Mathematics)
URL:https://math-events.uni-bonn.de/event/829/
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