Seminars and Colloquia by Series

Thursday, February 22, 2018 - 11:00 , Location: Skiles 006 , Robert Hough , Stony Brook University , Organizer: Mayya Zhilova
Wednesday, February 21, 2018 - 13:55 , Location: Skiles 005 , Paata Ivanisvili , Princeton University , ivanishvili.paata@gmail.com , Organizer: Galyna Livshyts
I will speak how to ``dualize'' certain martingale estimates related to the dyadic square function to obtain estimates on the Hamming and vice versa. As an application of this duality approach, I will illustrate how to dualize an estimate of Davis to improve a result of Naor--Schechtman on the real line. If time allows we will consider one more example where an improvement of Beckner's estimate will be given. 
Series: PDE Seminar
Tuesday, February 20, 2018 - 15:00 , Location: Skiles 006 , Emanuele Haus , Università degli Studi di Napoli Federico II , emanuele.haus@unina.it , Organizer: Yao Yao
Monday, February 19, 2018 - 15:30 , Location: Skiles 005 , TBA , TBA , Organizer: Caitlin Leverson
Monday, February 19, 2018 - 13:55 , Location: Skiles 006 , TBA , TBA , Organizer: Caitlin Leverson
Thursday, February 15, 2018 - 15:05 , Location: Skiles 006 , Tobias Johnson , College of Staten Island , tobias.johnson@csi.cuny.edu , Organizer: Michael Damron
Place Poi(m) particles at each site of a d-ary tree of height n. The particle at the root does a simple random walk. When it visits a site, it wakes up all the particles there, which start their own random walks, waking up more particles in turn. What is the cover time for this process, i.e., the time to visit every site? We show that when m is large, the cover time is O(n log(n)) with high probability, and when m is small, the cover time is at least exp(c sqrt(n)) with high probability. Both bounds are sharp by previous results of Jonathan Hermon's. This is the first result proving that the cover time is polynomial or proving that it's nonpolymial, for any value of m. Joint work with Christopher Hoffman and Matthew Junge.
Wednesday, February 14, 2018 - 13:55 , Location: Skiles 005 , Dmitry Ryabogin , Kent State University , ryabogin@math.kent.edu , Organizer: Galyna Livshyts
TBA
Series: Other Talks
Wednesday, February 14, 2018 - 11:05 , Location: Skiles 006 , Omer Angel , UBC, Vancouver , Organizer: Prasad Tetali
Series: PDE Seminar
Tuesday, February 13, 2018 - 15:00 , Location: Skiles 006 , Javier Gómez-Serrano , Princeton University , jg27@math.princeton.edu , Organizer: Yao Yao
Monday, February 12, 2018 - 14:00 , Location: Skiles 006 , Josh Sabloff , Haverford College , Organizer: John Etnyre

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