Geometry
 & Topology
IPM
School of Mathematics


 Events
   
Calendar    
 Members     
Selected Publications
    
Archive  
  UPCOMING ACTIVITIES Subscribe to mailing list 

8th Meeting on Contemporary Mathematics
School of Mathematics, IPM
June 19-20, 2018


Speaker:
Danny Calegari
(University of Chicago)

Title:
Surfaces and stable norms

Abstract:

Many fundamental geometric or topological problems can be couched in terms of finding a *simplest* representative of a given structure: a shortest path, a triangulation with fewest triangles, a least area surface. We discuss the theory of *stable commutator length*, ostensibly concerned with optimizing an algebraic quantity, and explain its relation to topology, geometry, and the homologically efficient construction of surfaces. There are many beautiful and unexpected phenomena. Some are understood; many more are not.

Program:

14:00-15:30
16:00-17:30
Tue
June 19

1st Lecture Tea
2nd Lecture
Wed
June 20

3rd Lecture Tea Colloquium
+ reception

Location: Lecture Hall 1, IPM Niavaran Building,
Niavaran Square, Tehran
Registration:
The attendance is free, but requires registration.
Please fill out the registration form and
send its text to  gt@ipm.ir  with the subject "MCM".
Poster

Mathematics Colloquium

Speakers:
Danny Calegari
University of Chicago

Title:

Ziggurats and Rotation Numbers
Description:

The dynamical study of homeomorphisms of the circle is more than a century old; for a single homeomorphism Poincare found a beautiful invariant - the rotation number. In this talk we address the following fundamental question: if we know the rotation numbers of two homeomorphisms of the circle, what can we say about the rotation number of their product?

Date &
Time:
Wednesday, Jun. 20, 2018, 16:00--17:00
Location: 
Lecture Hall 1,
IPM Niavaran Building,
Niavaran Square, Tehran
Printable Version


Tehran Topology 2018
School of Mathematics, IPM
June 26-28, 2018


Speakers: 
Mehrzad Ajoodanian (IPM)
Narges Bagherifard (Sharif Univ. Tech.)
Eaman Eftekhary (IPM)
Kristen Hendricks (Michigan State University)
Ali Kamalinejad (IPM)
Artem Kotelskiy (Princeton University)
Majid Narimannejad (IPM)
Meysam Nassiri (IPM)
Jacob Rasmussen (University of Cambridge)
Iman Setayesh (Tarbiat Modares University)
Mahdi Yazdi (University of Oxford) * (To be confirmed)
Hadi Zare (University of Tehran)
Organizers: 
Aliakbar Daemi (Stony Brook University & SCGP)
Eaman Eftekhary (IPM)
Robert Lipshitz (University of Oregon)
Faramarz Vafaee (Caltech)
Location: School of Mathematics, IPM,
Niavaran Square, Tehran
Registration:
Please fill out the registration form and
send the text to gt@ipm.ir with the subject "TT2018".
Poster



School of Mathematics,
IPM - Institute for Research in Fundamental Sciences
Niavaran Building, Niavaran Square, Tehran, Iran
Tel: +98 21 222 90 928
Email: gt@ipm.ir