[Zoom Seminar] Collisions of multiple random walks | Associate Professor David Croydon (RIMS, Kyoto University)
Date
Location
Description
The speaker: Associate Professor David Croydon (RIMS, Kyoto University)
Title: Collisions of multiple random walks
Abstract: The problem of understanding how frequently two or more (independent) random walks collide has attracted considerable interest. A fundamental issue is determining whether a given number of random walks collide infinitely often or not on a particular graph. In this talk, I will survey various work concerning the infinite collision property for two random walks, and also describe a recent work (joint with Umberto De Ambroggio) that sheds light on the situation for three random walks. In particular, we show a phase transition between infinite collisions and finite collisions for three random walks on a certain comb graph as a parameter describing the size of the "teeth" is adjusted suitably.
Date and time: 17th March Monday at 10:00
Location: L4F01
Zoom Information:
https://oist.zoom.us/j/98202684577?pwd=8bwUFHYq8UzHJ4YnwNq9pbmj8FMPGt.1
Meeting ID: 982 0268 4577
Passcode: 538738
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