Seminars and Colloquia by Series

Thursday, October 5, 2017 - 11:05 , Location: Skiles 005 , Yuri Kifer , Hebrew University , Organizer:
Wednesday, September 27, 2017 - 14:05 , Location: Skiles 005 , Akram Aldroubi , Vanderbilt University , Organizer: Shahaf Nitzan
Monday, September 18, 2017 - 13:50 , Location: Skiles 006 , Michael Landry , Yale , michael.landry@yale.edu , Organizer: Balazs Strenner
Thursday, August 31, 2017 - 15:05 , Location: Skiles 006 , Po-Ling Loh , University of Wisconsin-Madison , Organizer: Mayya Zhilova
Series: PDE Seminar
Tuesday, April 25, 2017 - 15:05 , Location: Skiles 006 , Lenya Ryzhik , Stanford University , ryzhik@math.stanford.edu , Organizer: Yao Yao
Monday, April 24, 2017 - 15:05 , Location: Skiles 006 , Yoav Len , University of Waterloo , Organizer: Matt Baker
  I will discuss the interplay between tangent lines of algebraic and tropical curves. By tropicalizing all the tangent lines of a plane curve, we obtain the tropical dual curve, and a recipe for computing the Newton polygon of the dual projective curve. In the case of canonical curves, tangent lines are closely related with various phenomena in algebraic geometry such as double covers, theta characteristics and Prym varieties. When degenerating them in families, we discover analogous constructions in tropical geometry, and links between quadratic forms, covers of graphs and tropical bitangents. 
Monday, April 24, 2017 - 14:05 , Location: Skiles 005 , Prof. George Mohler , IUPUI Computer Science , Organizer: Martin Short
TBA
Monday, April 24, 2017 - 14:05 , Location: TBA , TBA , TBA , Organizer: Caitlin Leverson
Friday, April 21, 2017 - 15:05 , Location: Skiles 005 , Miklós Bóna , University of Florida , bona@ufl.edu , Organizer: Torin Greenwood
  Various parameters of many models of random rooted trees are fairly well understood if they relate to a near-root part of the tree or to global tree structure. In recent years there has been a growing interest in the analysis of the random tree fringe, that is, the part of the tree that is close to the leaves. Distance from the closest leaf can be viewed as the protection level of a vertex, or the seniority of a vertex within a network. In this talk we will review a few recent results of this kind for a number of tree varieties, as well as indicate the challenges one encounters when trying to generalize the existing results. One tree variety, that of decreasing binary trees, will be related to permutations, another one, phylogenetic trees, is frequent in applications in molecular biology. 
Wednesday, April 19, 2017 - 14:05 , Location: Skiles 005 , Mishko Mitkovskii , Clemson University , Organizer: Shahaf Nitzan

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