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SUMMARY:Robert W. Donley\, Jr. (Queensborough Community College (CUNY))
DTSTART:20200604T183000Z
DTEND:20200604T185500Z
DTSTAMP:20260423T011225Z
UID:CANT2020/52
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CANT2020/52/
 ">Semi-magic matrices for dihedral groups</a>\nby Robert W. Donley\, Jr. (
 Queensborough Community College (CUNY)) as part of Combinatorial and addit
 ive number theory (CANT 2021)\n\n\nAbstract\nIf the finite group $G$ acts 
 on a finite set $X$\, then $G$ may be represented \nby a subgroup of permu
 tation matrices\, which in turn generate an algebra of semi-magic matrices
 .  \nRecall that a semi-magic matrix is a square matrix with complex coeff
 icients whose rows and \ncolumns have a common line sum.  In the case of d
 ihedral groups\, we apply character theory \nto recover the known counting
  formula for semi-magic matrices with fixed line sum and \ncoefficients in
  the natural numbers.\n
LOCATION:https://researchseminars.org/talk/CANT2020/52/
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