Cortona, Italy, June 13-18, 2004
Program of the conference

On Sunday, 13 June, the Palazzone opens at 14.00.

MONDAY, 14 June

Morning session:
chair P. de la Harpe
 9.00-10.10 Opening
Rostislav I.GRIGORCHUK "The development of amenability in the past 50 years"
10.10-10.40 Coffee break
10.40-11.30 Jason FULMAN "Character ratios"
11.50-12.20 Florin RADULESCU "Connes embedding Problem and Hilbert 17th problem"
12.20-14.50 Lunch break
Afternoon sessions:
chairs D. I. Cartwright (general + A),
M. Bridson (B)
14.50-15.40 Alain VALETTE "II_1 factors with trivial fundamental group"
15.40-16.10 Coffee break
Parallel sessions A+B:
16.10-16.40 (A) Marc PEIGNÉ "On a centrifugal random walk in the euclidean space"
(B) Ilya KAPOVICH "Generic stretching factors of free group endomorphisms"
16.45-17.15 (A) David REVELLE "Off-diagonal heat kernel bounds on wreath products"
(B) Alexei MIASNIKOV "Random van Kampen diagrams and algorithmic problems in groups"
17.30-18.00 (A) Frédéric MATHEUS "Random walks on free products of cyclic groups and on Artin groups with two generators"
(B) Indira Lara CHATTERJI "The Rapid Decay property on locally compact groups"
18.05-18.35 (A) Sara BROFFERIO "The Poisson boundary for random rational affinities"
(B) Udo BAUMGARTNER "Dynamics of automorphisms of totally disconnected groups"

TUESDAY, 15 June

Morning session:
chair V.A. Kaimanovich
 9.00- 9.50 Kenneth BROWN "Introduction to Thompson's group"
 9.50-10.20 Coffee break
10.20-11.10 Amos NEVO "The spectral theory of amenable actions and invariants of discrete groups"
11.30-12.20 Balint VIRÁG "Self-similar random walks and amenability"
12.20-14.50 Lunch break
Afternoon sessions:
chairs B. Virág (general and B),
K. Th. Sturm (A)
14.50-15.40 Vadim A. KAIMANOVICH "'Muenchhausen trick' and amenability of self-similar groups"
15.40-16.10 Coffee break
Parallel sessions A+B :
16.10-16.40 (A) Isaac PESENSON "Poincare-type inequalities and reconstruction of Paley-Wiener functions on manifolds and graphs"
(B) Zoran SUNIK "Dimension and spectra of automaton groups"
16.45-17.15 (A) Laurent BARTHOLDI "Amenability via random walks"
(B) Elmar TEUFL "Oscillation phenoma on self-similar graphs"
17.30-18.00 (A) Enric VENTURA "The conjugacy problem in free-by-cyclic groups is solvable"
(B) Volker METZ "Self-similar fractals and self-similar random walks"
18.05-18.35 (A) Joel M. COHEN "Potential theory on trees without potentials"
(B) Volodymyr NEKRASHEVYCH "Mandelbrot set and group theory"


Morning session:
chair G. Pisier
 9.00- 9.50 Sorin POPA "Classification of factors arising from actions of weakly rigid groups by Bernoulli shifts"
 9.50-10.20 Coffee break
10.20-11.10 Yves GUIVARC'H "Limit sets of group actions on boundaries and other homogeneous spaces"
11.30-12.20 Martin BRIDSON "Subdirect products and finiteness properties of groups"
12.30-13.00 Emmanuel BREUILLARD "Limit theorems for random walks on Lie groups"
13.00 Lunch
Free afternoon


Morning session:
chair A. Figà-Talamanca
 9.00- 9.50 Bachir BEKKA "Some new developments around property (T)"
 9.50-10.20 Coffee break
10.20-11.10 Anna ERSCHLER "Isoperimetry, heat kernel and asymptotics of random loops in groups"
11.30-12.20 Alexander LUBOTZKY "On finite groups and hyperbolic manifolds"
12.20-14.50 Lunch break
Afternoon sessions:
chairs A. Nevo (general and A),
I. Kapovich (B)
14.50-15.40 Tim STEGER "Tempered irreducible unitary representations of the free group"
15.40-16.00 Coffee break
16.00-16.30 Donald CARTWRIGHT "Ramanujan complexes"
16.35-17.05 Said SIDKI "Groups without free subgroups of rank 2"
Parallel sessions A+B:
17.20-17.50 (A) Gabriel PICIOROAGA "The von Neumann algebra of the canonical equivalence relation of the Thompson group"
(B) Gabriella KUHN "Transference for amenable actions"
17.55-18.25 (A) Markus NEUHAUSER "Relative property (T) and related properties of wreath products"
(B) Awni AL-DABABSEH "On supersolubility of some finite factorizable groups" (17.55-18.10)
    Jehad JARADEEN "Some conditions for p-solubility of finite groups" (18.10-18.25)

FRIDAY, 18 June

Morning sessions:
chairs B. Bekka (general and A),
T. Steger (B)
 9.00- 9.50 Gilles PISIER "Are unitarizable groups amenable ?"
 9.50-10.20 Coffee break
Parallel sessions:
10.30-11.00 (A) Karl-Theodor STURM "Martingales in graphs and metric spaces"
(B) Angeles CARMONA "General metrics and discrete operators on multigraphs"
11.05-11.35 (A) Franz LEHNER "A noncommutative version of De Finetti's theorem"
(B) Serban NACU "Glauber dynamics on the cycle is monotone"
11.40-12.10 (A) Motoko KOTANI "Magnetic transition operator on a crystal lattice"
(B) Filippo TOLLI "Trees, wreath products and finite Gelfand pairs"
12.10-14.40 Lunch break
Afternoon session:
chair R. I. Grigorchuk
14.40-15.30 Christophe PITTET "Finitely generated groups with the Liouville property"
15.30-16.00 Coffee break
16.00-16.30 Wolfgang WOESS "Non-backtracking random walks and cogrowth of graphs"

Last modified on June 17, 2004