International workshop
GROUPS AND LANGUAGES
dedicated to Toni Machì on his 70th birthday

Università di Roma "La Sapienza"
Rome, 9-10 September 2010

PROGRAMME

All the talks will take place in Aula INdAM, Istituto Nazionale di Alta Matematica,
located in the Istituto Matematico "G. Castelnuovo"

Thursday 9 September

9:30 Arrival
9:45 Opening

10:00 - 10:50 R. Cori: Maps and permutations in Toni Machì's life

11:00 - 11:30 Coffee break

11:30 - 12:20 P. de la Harpe: About Dehn 1910 paper on decision problems and all that
12:30 - 13:20 R.I. Grigorchuk: Torsion images of Coxeter groups and a question of Wiegold

13:30 - 15:00 Lunch break

15:00 - 15:50 R. Griess: Moonshine paths between the extended E_8-diagram and the Monster
16:00 - 16:50 W. Woess: Context free pairs of groups, context-free graphs, and random walk asymptotics

17:00 - 17:15 Coffee break

17:15 - 18:05 J. Körner: Extremal diversity

20:00 Social dinner

Friday 10 September

9:00 - 9:50 P. Schupp: Geometric group theory, generic computability, Turing degrees and asymptotic density
10:00 - 10:50 D. Perrin: Groups of codes with empty kernel

11:00 - 11:30 Coffee break

11:30 - 12:20 A. Valibouze: Galoiseries
12:30 - 13:20 A de Luca: A palindromization map in free monoids

13:30 - 15:00 Lunch break

15:00 - 15:50 G. Jones: Hypermaps, Groups and Dessins d'Enfants
16:00 - 16:50 F. Fiorenzi: Decision problems concerning cellular automata

17:00 - 17:15 Coffee break

17:15 - 18:05 A. Restivo: Words and permutations

18:10 Close


EMAIL: groupslanguages ( AT ) mat.uniroma1.it