BEGIN:VCALENDAR
VERSION:2.0
PRODID:Mathematics Seminar Calendar
BEGIN:VEVENT
UID:20211025T142446-29098@math.msu.edu
DTSTAMP:20211025T142446Z
SUMMARY:Drastic differences between the potential theories on trees and on multi-trees
DESCRIPTION:Speaker\: Alexander Volberg, MSU\r\n
LOCATION:Online (virtual meeting)
DTSTART:20210908T200000Z
DTEND:20210908T210000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=29098
END:VEVENT
BEGIN:VEVENT
UID:20211025T142446-29099@math.msu.edu
DTSTAMP:20211025T142446Z
SUMMARY:Stabilization rates for the damped wave equation with polynomial and oscillatory damping
DESCRIPTION:Speaker\: Kleinhenz, Perry, MSU\r\nIn this talk I will discuss energy decay of solutions of the Damped wave equation. After giving an overview of classical results I'll focus on the torus with damping that does not satisfy the geometric control condition. In this setup properties of the damping at the boundary of its support determine the decay rate, however a general sharp rate is not known.\r\n\r\nI will discuss damping which is 0 on a strip and vanishes either like a polynomial x^b or an oscillating exponential e^{-1/x} sin^2(1/x). Polynomial damping produces decay of the semigroup at exactly t^{-(b+2)/(b+3)}, while oscillating damping produces decay at least as fast as t^{-4/5+\delta} for any \delta>0. I will explain how these model cases are proved and how they direct further study of the general sharp rate. \r\n
LOCATION:Online (virtual meeting)
DTSTART:20210915T200000Z
DTEND:20210915T210000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=29099
END:VEVENT
BEGIN:VEVENT
UID:20211025T142446-29122@math.msu.edu
DTSTAMP:20211025T142446Z
SUMMARY:Boundary Stabilisation of Waves on Product Manifolds
DESCRIPTION:Speaker\: Ruoyu Wang , Northwestern\r\nTake a square and consider the damped waves with boundary damping $a>0$ on the top side only. We will discuss my recent result implying that the energy of those waves must uniformly decay no faster than $t^{-1/2}$, and no slower than it. We will also discuss this result in the context of product manifolds where the transverse geometric control is sufficient but not necessary for such energy decay.\r\n\r\nZoom passcode: A*****-P**
LOCATION:Online (virtual meeting)
DTSTART:20210922T200000Z
DTEND:20210922T210000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=29122
END:VEVENT
BEGIN:VEVENT
UID:20211025T142446-29148@math.msu.edu
DTSTAMP:20211025T142446Z
SUMMARY:Refined regularity of SLE
DESCRIPTION:Speaker\: Yizheng Yuan, TU Berlin\r\nSLE (Schramm-Loewner evolution) is a family of random planar curves that have some natural conformal invariance properties. They appear in a variety of planar models that exhibit conformal invariance in the scaling limit. In this talk I will introduce SLE and describe its regularity. Regarding the regularity, the optimal Hoelder and p-variation exponents are known from previous works. I will present a new approach that refines the results to the logarithmic scale.\r\n\r\nZoom Passcode: A*****-P**
LOCATION:Online (virtual meeting)
DTSTART:20211020T200000Z
DTEND:20211020T210000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=29148
END:VEVENT
BEGIN:VEVENT
UID:20211025T142446-29125@math.msu.edu
DTSTAMP:20211025T142446Z
SUMMARY:Two types of integrability in Liouville quantum gravity
DESCRIPTION:Speaker\: Xin Sun, University of Pennsylvania\r\nThere are two major resources of integrability in Liouville quantum gravity: conformal field theory and random planar maps decorated with statistical physics models. I will give a few examples of each type and explain how these two types are compatible. Recently, cutting and gluing random surfaces in LQG using SLE curves allows us to blend these two types of integrability to obtain exact results on Liouville conformal field theory, mating of trees, Schramm-Loewner evolution, and conformal loop ensemble. I will present a few results in this direction. Based on joint works with Morris Ang, Nina Holden and Guillaume Remy. \r\n\r\nZoom passcode: A*****-P**
LOCATION:Online (virtual meeting)
DTSTART:20211103T200000Z
DTEND:20211103T210000Z
URL:https://math.msu.edu/Seminars/TalkView.aspx?talk=29125
END:VEVENT
END:VCALENDAR