Then basic entropy theory, see e.g. chapter 2 and section 5.2/5.3 of
Below are more suggestions for reading material that will be covered in my or other classes.
There also exists another book project with Tom where we plan to explain many cases of Ratner's measure classification (among other things). Please see
gets updated (hopefully within a couple of weeks).
These notes are probably a bit too advanced. One place one can get a general introduction to the subject is this survey paper:
(4) For Mohammadi's lectures:
M. Einsiedler, Ratner’s theorem on SL(2, R)-invariant measures, Jahresber. Deutsch. Math.- Verein. 108 (2006), no. 3, 143–164.
(5) For Emmanuel Breulliard's lectures:
1) Fell topology, Property (T), and spectral gaps.
2) Expander graphs and approximate groups.
3) Super-strong approximation.
* Here are some references and reading material for the first lecture.
- books:
Kirillov, Elements of the theory of Representations
Zimmer, Ergodic Theory and Semisimple groups
Bekka-de la Harpe-Valette, Kazhdan's property (T).
- papers:
Fell, Weak containment and induced representations of groups.
Moore, Exponential decay of correlation coefficients for geodesic flows.
Cowling, Sur les coefficients des representations unitaires des groupes de Lie simples (in French!).
*Here is some additional material for second lecture:
-papers:
Einsiedler-Margulis-Venkatesh, Effective equidistribution for closed orbits of semisimple groups on homogeneous spaces.
Furman-Shalom, Sharp ergodic theorems for group actions and strong ergodicity.
Shalom, Explicit Kazhdan constants for representation of semisimple groups.
-notes:
Bump, Spectral theory and trace formula.
-books:
Margulis, Discrete subgroups of semisimple groups (Chapter III).
Sarnak, Applications of modular forms (Chapter 2).
*And for my third lecture:
-papers:
Bourgain-Gamburd, Uniform expansion bounds for Cayley graphs of SL(2,F_p).
Breuillard-Green-Tao, Linear approximate groups.
Pyber-Szabo, Growth in finite simple groups of Lie type.
Salehi-Golsefidy-Varju, Expansion in perfect groups.
-notes:
PCMI notes: http://www.math.u-psud.fr/~breuilla/BreuillardPCMI.pdf
MSRI notes: http://www.math.u-psud.fr/~breuilla/Breuillard_MSRI.pdf