BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Seminar 17/01
DTSTART;VALUE=DATE-TIME:20190117T131500Z
DTEND;VALUE=DATE-TIME:20190117T141500Z
DTSTAMP;VALUE=DATE-TIME:20190118T100300Z
UID:indico-event-4315@indico.math.cnrs.fr
DESCRIPTION:Speakers: Mario Shannon\nQualitative Theory of Dynamical Syste
ms: Basic ideas about recurrent sets.\n\n \n\nThe theory of Dynamical Sys
tems is a branch of mathematics that studies the movement. Among the sever
al approaches to the concept of movement\, the so called Deterministic Dyn
amical Systems is the most classical one\, whose beginning is usually asso
ciated to the foundational works of Newton and Leibnitz during the sevente
enth century. In face of the impossibility of solving differential equatio
ns\, a new approach was developed in the second half of the nineteenth cen
tury\, mainly due to the works of Poincaré\, and which is known as the Qu
alitative Theory of Dynamical Systems. \n\n \n\nThe purpose of this tal
k is to present one of the most basic concepts of this theory\, the concep
t of Recurrence. We will explain some classical examples in dimension one\
, making special emphasis in the linear expanding maps of the interval\, w
hich will serve as toy model for Chaos.\n\n \n\nWe hope to complement thi
s talk with a second one about Anosov Dynamical Systems (and general notio
ns about Chaos Theory)\, for which the present talk will serve as previous
knowledge.\nhttps://indico.math.cnrs.fr/event/4315/
LOCATION:318 (Université de Bourgogne)
URL:https://indico.math.cnrs.fr/event/4315/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Presentations of 3-manifolds and related invariants
DTSTART;VALUE=DATE-TIME:20190124T131500Z
DTEND;VALUE=DATE-TIME:20190124T141500Z
DTSTAMP;VALUE=DATE-TIME:20190118T100300Z
UID:indico-event-4327@indico.math.cnrs.fr
DESCRIPTION:Speakers: Quentin FAES\n \n\nOne historical achievement of (d
ifferential) topology is the solution of the classification problem for hi
gh-dimensional manifolds (dim > 5). We are mainly left to the study of dim
ension 3 and 4. In order to study 3-manifolds\, we want to give a good way
of constructing it\, especially leading to combinatorial contexts. I will
sum up some presentations of 3-manifolds (by Heegard splitting\, by Dehn
surgery... etc.). This presentation allows us to define invariants in a na
tural way\, making interesting links between 3-dimensional topology and ot
her fields such as algebra (through Mapping Class groups of surfaces) and
Knot theory (Kirby moves). If I have enough time\, i will then give det
ails about this invariant\, and try to introduce ongoing problematics abou
t these subjects.\nhttps://indico.math.cnrs.fr/event/4327/
LOCATION:318 (IMB)
URL:https://indico.math.cnrs.fr/event/4327/
END:VEVENT
END:VCALENDAR