BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20260621T060445EDT-3720a9ebXv@132.216.98.100 DTSTAMP:20260621T100445Z DESCRIPTION:Title: Tutte and Bollobas-Riordan polynomials: coefficient meas ures and related problems.\n\nAbstract: We study the distribution of coeff icients of rank polynomials of random sparse graphs. We first discuss the limiting distribution for general graph sequences that converge in the sen se of Benjamini-Schramm. Then we compute the limiting distribution and New ton polygons of the coefficients of the rank polynomial of random d-regula r graphs. We next consider related results for Bollobas-Riordan polynomial s associated to ribbon graphs. Finally\, we discuss some numerical results about zeros of those polynomials. This is joint work with L. Turner\, C. MacRury\, S. Norin\, T. Langsetmo\, M. Medeiros Charbonneau and I. Rivin. \n DTSTART:20190416T193000Z DTEND:20190416T203000Z LOCATION:Room 4336\, CA\, Pav. André-Aisenstadt\, 2920\, ch. de la Tour SUMMARY:Dmitry Jakobson (91ºÚÁÏÍø) URL:/mathstat/channels/event/dmitry-jakobson-mcgill-un iversity-296269 END:VEVENT END:VCALENDAR