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SUMMARY:Lauren K. Williams (Harvard University & Radcliffe Institute)
DTSTART:20200605T193000Z
DTEND:20200605T202000Z
DTSTAMP:20260422T230720Z
UID:TutteColloquium/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TutteColloqu
 ium/1/">Matroids\, tropical geometry\, and positivity</a>\nby Lauren K. Wi
 lliams (Harvard University & Radcliffe Institute) as part of Distinguished
  Tutte Lecture Series\n\n\nAbstract\nThe theory of matroids -- a class of 
 combinatorial objects which simultaneously generalize graphs as well as ve
 ctors in a vector space -- was pioneered by William Tutte in his 1948 PhD 
 thesis.  Matroids are also closely connected to the Grassmannian and the t
 ropical Grassmannian.  In recent years\, mathematicians and physicists hav
 e been exploring positive notions of all of these objects\, finding applic
 ations to scattering amplitudes and shallow water waves.  In my talk I wil
 l give an introduction to matroids\, tropical geometry\, and positivity\, 
 and survey some of the beautiful results and applications.\n
LOCATION:https://researchseminars.org/talk/TutteColloquium/1/
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