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UID:69f34f6684e66
DTSTART;TZID=America/Toronto:20170112T160000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20170112T160000
URL:https://uwaterloo.ca/pure-mathematics/events/graduate-student-colloquiu
 m-1
LOCATION:M3 3103 Canada
SUMMARY:Graduate Student Colloquium
CLASS:PUBLIC
DESCRIPTION:HONGDI HUANG\, PURE MATHEMATICS\, UNIVERSITY OF WATERLOO\n\n\"O
 n *-clean group algebras\"\n\nA ring $R$ is called a $*$-ring (or a ring w
 ith involution $*$) if\nthere exists an operation $*$: $R \\rightarrow R$ 
 such that\n$(x+y)^*=x^*+y^*\, \\\,\\ (xy)^*=y^*x^* \\\,\\ $ and $(x^*)^*=x
 $\,\nfor all $x\, y\\in R$.  An element in a ring $R$ is called $*$-clean
  if\nit is the sum of a unit and a projection ($*$-invariant idempotent). 
 A\n$*$-ring is called $*$-clean if each of its elements is the sum of a\nu
 nit and a projection.
DTSTAMP:20260430T124734Z
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