Friday 4 February at 11am at the Frumam, Pascal HUBERT will give us a panorama of the fractal of Rauzy and the exchanges of intervals of Arnoux-Rauzy
It is perfectly suited to ratify the change of name of our seminary which thus becomes the Rauzy seminary wishing that it continues to bring us for a long time beautiful mathematics
Category Archives: Seminars and working groups
Singularity Webinar – Thursday, February 3rd
The next session of the Marseille Singularity Webinar will take place Thursday, February 3rd, from 14h00 to 15h00 (Paris time) via Zoom (see details below).
We will have the pleasure to listen to:
Speaker: Frédéric MANGOLTE (Marseille)
Title: Algebraic models of the line in the real affine plane
The abstract, as well as the list of the forthcoming speakers, is available on the website of the webinar: https://sites.google.com/view/singularites-marseille
The next talk will be in English, as well as future talks, in order to accommodate a larger public.
Teich Webminar – Friday, January 28th,
Alexey GLUTSYUK, On projective billiards rationally integrable
A planar mathematical billiard is a field in the plane bounded by a smooth curve. The straight lines, which intersect it, reflect from the edge according to the classical law of reflection: the angle of incidence is equal to the angle of reflection. A caustic of a planar billiard table is a curve in which any tangent line is reflected to another tangent line. The famous conjecture of Birkhoff concerns the convex planar billiards bounded integrable to the sense of Birkhoff: that is, admitting a lamination in caustic closed near the border, on the interior side. She asserts, that the only billiards that can be integrated into Birkhoff’s sense are the ellipses.
Singularity webinar – Thursday January 27th
We will have the pleasure to listen to:
Speaker: Wojciech KUCHARZ (Krakow)
Title: On approximation of maps into real algebraic homogeneous spaces
The abstract, as well as the list of the forthcoming speakers, is available on the website of the webinar: https://sites.google.com/view/singularites-marseille
Teich Webinar, Friday, January 21th
-rotation Z-Rauzy induction on the torus and associated Markov partitions
Here is his summary: We will study a two-dimensional symbolic dynamic system given by the encoding of a Z 2-rotation on the two-dimensional torus by a well chosen polygonal partition. Using a two-dimensional notion of Rauzy’s induction, we will demonstrate that the score is self-induced. Therefore, the symbolic dynamic system is auto-similar. We will show that it is also of the finished type and we will deduce that the score is a Markov score for the 2-rotation Z on the torus. The purpose of the talk is to illustrate quietly and by hand in the table the calculation of the Rauzy induction for the 2-rotation Z in the simplest case and associated with the golden number. Details of the method are available here
Singularity Webinar, Thursday, January 20th
The next session of the Marseille Singularity Webinar will take place Thursday, January 20th,from 14h00 to 15h00 (Paris time) via Zoom (see details below).
We will have the pleasure to listen to:
Speaker: Arthur FOREY (Lausanne)
Title: Bounded motivic integral and motivic Milnor fiber
The abstract, as well as the list of the forthcoming speakers, is available on the website of the webinar: https://sites.google.com/view/singularites-marseille
The next talk will be in English, as well as future talks, in order to accommodate a larger public.
Singularity Webinar Thursday, January 13th
The next session of the Marseille Singularity Webinar will take place Thursday, January 13th,from 14h00 to 15h00 (Paris time) via Zoom (see details below).
We will have the pleasure to listen to:
Speaker: Eva ELDUQUE (Madrid)
Title: Eigenspace Decomposition of Mixed Hodge Structures on Alexander Modules
The abstract, as well as the list of the forthcoming speakers, is available on the website of the webinar: https://sites.google.com/view/singularites-marseille
The next talk will be in English, as well as future talks, in order to accommodate a larger public.