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DTSTART:20210314T070000
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DTSTART:20201101T060000
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DTSTART;TZID=America/Toronto:20210913T113000
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URL:https://uwaterloo.ca/combinatorics-and-optimization/events/algebraic-gr
 aph-theory-seminar-chris-godsil-35
SUMMARY:Algebraic Graph Theory Seminar - Chris Godsil
CLASS:PUBLIC
DESCRIPTION:TITLE: Tails and Chains\n\nSpeaker:\n Chris Godsil\n\nAffiliat
 ion:\n University of Waterloo\n\nZoom:\n Contact Soffia Arnadottir\n\nABST
 RACT:\n\nPhysicists are interested in \"graphs with tails\"\; these are\nc
 onstructed by choosing a graph X and a subset C of its vertices\, then\nat
 taching a path of length n to each vertex in C. We ask what is the\nspectr
 um of such graph? What happen if n increases? We will see that\nthe answer
  reduces to questions about the matrix\n\n\\[ M(\\zeta) := (\\zeta_\\zeta^
 {-1})I - A -\\zeta D \\]\n\nwhere D is the diagonal 01-matrix with D_{i\,i
 }=1 if i is in C.
DTSTAMP:20260403T170906Z
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