2026. 11. 02. 10:05 - 2026. 11. 02. 10:55
room 207 in Building H, BME
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Esemény típusa: szeminárium
Szervezés: Külsős
BME Fractal Geometry Seminar

Leírás

Suppose \((X,d)\) is a metric space equipped with a Borel probability measure and suppose \((B_i)_{i \in \mathbb{N}}\) is a sequence of measurable sets in \(X\). Suppose \(T: X \to X\) is a measure-preserving transformation and consider the set:

\[
\mathcal{B} = \left\{x \in X : T^n x \in B_n \text{ for infinitely many } n \in \mathbb{N}\right\}.
\]

This is a shrinking target set. The terminology "shrinking targets" was first introduced by Hill and Velani in 1995. Since then, shrinking target problems have received a great deal of interest, especially with regards to studying the measure-theoretic and dimension-theoretic properties of shrinking target sets. In this talk, I will discuss some recent work with Thomas Jordan (Bristol, UK) and Ben Ward (York, UK) where we establish the Hausdorff dimension of a shrinking target set where our "targets" (the \(B_n\)) are rectangles and \(X\) is a self-similar carpet.

 

Zoom:  https://us02web.zoom.us/j/83725792437?pwd=9Zhxb4WEwTnPIEwo5raP2pMRan7q5n.1
Meeting ID: 837 2579 2437
Passcode: 003478