Fakulta matematiky, fyziky
a informatiky
Univerzita Komenského v Bratislave

Seminár z teórie grafov - Lev Glebsky (17.3.2016)

vo štvrtok 17.3.2016 o 9:50 hod. v miestnosti M/213


15. 03. 2016 09.20 hod.
Od: Martin Škoviera

Prednášajúci: Lev Glebsky (Universidad Autonóma, San Luis Potosí, México)

Názov: Approximations of discrete groups by finite ones

Termín: 17.3.2016, 9:50 hod., M/213

Abstrakt: 
The plan of my talk is as follows:

  1. Almost homomorphisms and approximations of groups.
  2. Metric approximations of discrete groups. Topological approximations. Equivalent de nitions.
  3. So c groups. Hyperlinear groups. Weakly so c groups. Linear so c groups.
  4. Equations over groups. Kervaire-Laudenbach conjecture.
  5. SQ-universality, congruence extension property, and so city. The nonstandard extension of a free group.
  6. If time permits I will touch the approximations of topological groups.