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PRODID:-//University of Utah Math Department//When is a group a free product?//EN
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X-WR-CALNAME:When is a group a free product?
X-WR-CALDESC:When is a group a free product? at University of Utah Mathematics Department
X-WR-TIMEZONE:America/Denver
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UID:19991028T160000-john-r.-stallings@math.utah.edu
DTSTART;TZID=America/Denver:19991028T160000
DTEND;TZID=America/Denver:19991028T170000
DTSTAMP:20260922T150858Z
SUMMARY:When is a group a free product?
DESCRIPTION:Speaker: John R. Stallings\, Berkeley)\n\nFree product in group theory, the non-abelian version of direct sum, has a geometric meaning in terms of fundamental groups. The question as to whether a given group can be written as a non-trivial free product has a few answers in specific cases; for instance, the fundamental group of a closed …

LOCATION:JWB 335

URL:https://www.math.utah.edu/research/colloquia/1999-10-28-john-r.-stallings/
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