Thursday, December 24 2020
11:00 - 12:00

#### Given an automorphism ${\phi : \Gamma \to \Gamma}$, one has the ${\phi}$-twisted conjugacy action of ${\Gamma}$ on itself, given by ${g.x = gx\phi(g^{-1}).}$The orbits of this action are called the ${\phi}$-twisted conjugacy classes. The first part of the talk will be about twisted conjugacy in general and special linear groups over $F[t]$ and $F[t,t^{-1}]$ where $F$ is any subfield of algebraic closure of $\mathbb{F}_p$.In the second part of the talk, some results concerning quasi-isometry group of $\mathbb{Z}^n$ will be stated and it will be shown that the group is `large'.Zoom meeting ID: 817 6314 9168. Password: PoincareLink: us02web.zoom.us/j/81763149168?pwd=Rk5TdHhFOHRXcVErclgxY3c0YmpKUT09

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