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SUMMARY:André Leroy (University of Artois)
DTSTART:20211019T160000Z
DTEND:20211019T170000Z
DTSTAMP:20260423T021254Z
UID:ONCAS/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/ONCAS/7/">Co
 mmutatively closed rings and their graphs</a>\nby André Leroy (University
  of Artois) as part of ONCAS Online Noncommutative Algebra Seminar\n\n\nAb
 stract\nA subset S of a ring R is commutatively closed if for any elements
  a\, b in R\, the product ab is in S if and only if the product ba is in S
 . This concept was introduced in a recent paper and intended to have anoth
 er perspective on Dedekind finite\, reversible\, semicommutative\, ... rin
 gs. A topology was attached to this concept and in the present work we att
 ach a graph and are able to compute the diameter of this graph for semisim
 ple algebras. This answers some questions left open. \n\nThis is joint wor
 k with Mona Abdi.\n
LOCATION:https://researchseminars.org/talk/ONCAS/7/
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