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Yuki Tokushige - Scaling limits of a SRW on the Long-Range percolation cluster (online)

Dates:28 September 2022
Times:15:00 - 16:00
What is it:Seminar
Organiser:Department of Mathematics
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  • Yuki Tokushige's Homepage

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  • In category "Seminar"
  • In group "(Maths) Probability and statistics"
  • By Department of Mathematics

Yuki Tokushige (Kyushu University) will speak in the Probability seminar.

In this talk, we will discuss a Long-Range Percolation (LRP) on $\mathbb{Z}^d$, which is a variant of the classical nearest-neighbor Bernoulli percolation. In particular, we consider a problem concerning a SRW on the infinite cluster of a LRP. In the paper published in 2013, Crawford and Sly proved that a SRW on the infinite cluster scales to $\alpha$-stable process. However, they completed the proof only when $\alpha\in(0, 1)$. It is because the remaining case involves a technical problem to do with a control of short jumps of a SRW, which is related to the fact that sample paths of $\alpha$-stable process have infinite variations for $\alpha\in[1, 2)$. In this talk, we will give a brief overview of this subject and explain our idea to overcome the technical issue depicted above and complete the proof of the case $\alpha\in[1, 2)$. This talk is based on a joint work with Noam Berger (Technical University of Munich).

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https://zoom.us/j/97662591193

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Thomas Bernhardt

thomas.bernhardt@manchester.ac.uk

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