Stochastics Seminar
Click here for the Stochastics Group website
Spring 2024 Friday 3:00-4:00 PM (unless otherwise announced)
Room for in-person: LCB 215
Zoom information: E-mail the organizers
(in person talks are not broadcast on Zoom)
Join the seminar mailing list
Date | Speaker | Title (click for abstract, if available) |
---|---|---|
Friday, Feburary 23th |
Ray Zhang
University of Kansas |
The Kardar-Parisi-Zhang (KPZ) fixed point is a universal space-time random field of governing models in the KPZ universality class. We consider the asymptomatic properties of the KPZ fixed point when the height at a specific location becomes large. With the narrow-wedge initial condition, we obtained an explicit formula for distribution of the field after an appropriate scaling. Moreover, there is a phase transition for the conditional field near the given point. I will explain how the conditional field arises in the setting of the directed landscape, which is another central object in the KPZ universality. This is based on joint work with Zhipeng Liu, Ron Nissim and Yizao Wang. |
Friday, March 1st |
Arash Jamshidpey
Columbia |
We investigate a model of coexisting populations undergoing genetic drift, mutation and selection. Each population evolves as a measure-valued Fleming-Viot process whose fitness of types is a linear combination of the frequencies of types in the other populations, where the coefficients of this linear combination fluctuate over time. We introduce a family of dual processes which are used to analyze the behavior of the model. We also briefly discuss how an extended version of these duals can be applied to study some related models such as the Fleming-Viot model with frequency-dependent selection and the spatial Lambda-Fleming-Viot process in random environment. This talk is based on joint work with Don Dawson. |
Friday, March 29th |
Sayan Das
University of Chicago |
The directed landscape is a random directed metric on the plane that arises as the scaling limit of classical metric models in the KPZ universality class. In this talk, we will discuss a functional large deviation principle (LDP) for the entire random metric. Applying the contraction principle, our result yields an LDP for the geodesics in the directed landscape. If time permits, we will also mention certain interesting features of the rate function for the geodesic LDP. Based on a joint work with Duncan Dauvergne and Balint Virag. |
Friday, April 5th |
Christopher Hoffman
University of Washington |
TBA |
Friday, TBA |
TBA
TBA |
TBA |
To receive e-mail announcements please join the seminar mailing list.
This web page is maintained by Tom Alberts.
Past Seminars:
- Fall 2023 || Spring 2024
- Fall 2022 || Spring 2023
- Fall 2021 || Spring 2022
- Fall 2020 || Spring 2021
- Fall 2019 || Spring 2020
- Fall 2018 || Spring 2019
- Fall 2017 || Spring 2018
- Fall 2016 || Spring 2017
- Fall 2015 || Spring 2016
- Fall 2014 || Spring 2015
- Fall 2013 || Spring 2014
- Fall 2012 || Spring 2013
- Fall 2011 || Spring 2012
- Fall 2010 || Spring 2011
- Fall 2009 || Spring 2010
- Fall 2008 || Spring 2009
- Fall 2007 || Spring 2008
- Fall 2006 || Spring 2007
- Fall 2005 || Spring 2006
- Fall 2004 || Spring 2005
- Fall 2003 || Spring 2003
- Fall 2002 || Spring 2002
- Fall 2001
- Winter 2000
- Fall 1999
- Spring 1998