[Todos CMAT] ATENCIO. SON DOS ANUNCIOS, UNO CON LEDRAPPIER: Reminder: Budwiser on February 23 + New announcment: One day Fractal Geometry meeting on February 29

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----- Mensaje reenviado de "Dynamical Systems Seminar (BUTE)"  
<dinamika en math.bme.hu> -----
  Fecha: Wed, 21 Feb 2024 16:13:24 +0100
     De: "Dynamical Systems Seminar (BUTE)" <dinamika en math.bme.hu>
Asunto: Reminder: Budwiser on February 23 + New announcment: One day  
Fractal Geometry meeting on February 29
   Para: dinamika en math.bme.hu

Dear All,

this is a REMINDER on the  next BudWiSer event on the 23rd of  
February, at BME, Budapest.
The talks will be streamed, the zoom link will be posted on the  
seminar webpage.

The programme is as follows (all times given are according to CET).

2.15pm - 3.15
Sascha Troscheit (University of Oulu):
The box-counting dimension in one-dimensional random geometry of  
multiplicative cascades.

3.30pm - 4.30
Roland Zweimüller (University of Vienna):
Rare events in infinite ensemble dynamics.

5.00pm - 6.00
Mathieu Helfter (Sorbonne University):
Scales: On the size of infinite dimensional spaces.

For more information, see the seminar webpages:
www.math.bme.hu/~dinamika
https://mathematik.univie.ac.at/forschung/seminare/the-budapest-wien-dynamics-seminar/


-------------------------

Also, there is a NEW ANNOUNCEMENT:


Name: One-day Meeting on Fractal Geometry in Budapest
Date: 29th of February 2024, 10:00-13:00
Place: BME, building H, 3rd floor, room H306
The talks will be streamed, the zoom link will be posted on the  
seminar webpage,

Talks:
10:00-10:45 Francois Ledrappier
Title: TBA
Abstract: TBA

11:00-11:45 Sascha Troscheit
Title: Continuum trees of real functions and their graphs
Abstract: The Brownian continuum tree (CRT) is an important random  
metric space that was extensively investigated in the 1990s. It can be  
constructed by a change of metric from a Brownian excursion function  
on [0,1]. This change of metric can be applied to all continuous  
circle mappings to give a continuum tree associated with the function.
In 2008, Picard proved that analytic properties of the function are  
connected to the dimension theory of its tree: the upper box dimension  
of the continuum tree coincides with the variation index of the  
contour function. We will provide a short and direct proof of Picard's  
theorem through the study of packings. The methods used will inspire  
different notions of variations and variation indices, and we will  
link the dimension theory of the tree with the dimension theory of the  
graph of its contour function.
(Joint with Maik Gröger)

12:15-13:00 Michal Rams
Title: Lyapunov spectrum of matrix cocycles
Abstract: I will give an introduction into calculating of the Lyapunov  
spectrum of $SL(2,R)$ matrix cocycles, presenting results we got with  
Lorenzo Diaz and Katrin Gelfert.

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