## Monday, June 1, 2009

 09:15 - 09:30 Registration and Coffee Room 920, Burnside Hall, McGill University

 Meeting room : 920, Burnside Hall, McGill University

 09:30 - 10:20 Paul Roberts (University of Utah) Almost Cohen-Macaulay algebras
 10:30 - 11:20 Vikram Mehta (Tata Institute of Fundamental Research) The conjectures of Nori and Denninger-Werner and the local fundamental group-scheme
 11:20 - 11:50 Coffee break
 11:50 - 12:40 Masayoshi Miyanishi (Kwansei Gakuin University) Characteristic $p$ phenomena in affine geometry

 12:40 - 15:00 Lunch break

 Meeting room : 920, Burnside Hall, McGill University

 15:00 - 15:50 Matam Pavaman Murthy (University of Chicago) Unimodular Rows
 15:50 - 16:20 Coffee break
 16:20 - 17:10 Yoshifumi Takeda (Wakayama Medical University) Groups of Russell type and Tango structures

## Tuesday, June 2, 2009

 Meeting room : 920, Burnside Hall, McGill University

 09:30 - 10:20 Herbert Kurke (Humboldt-Universitat zu Berlin) TBA
 10:30 - 11:20 Marko Roczen (Humboldt-Universität zu Berlin) Motivic invariants of isolated singularities
 11:20 - 11:50 Coffee break
 11:50 - 12:40 Stepan Orevkov (Université Paul Sabatier) On algebraic and psedoholomorphic plane curves

 12:40 - 15:00 Lunch break

 Meeting room : 920, Burnside Hall, McGill University

 15:00 - 15:50 Avinash Sathaye (University of Kentucky) Discriminant of a curve with two places at infinity
 15:50 - 16:20 Coffee break
 16:20 - 17:10 Pierrette Cassou-Noguès (Université Bordeaux 1) Rational polynomials and Danielewski surfaces

## Wednesday, June 3, 2009

 Meeting room : 920, Burnside Hall, McGill University

 09:30 - 10:20 David Wright (Washington University in St. Louis) Commutator formulas for polynomial automorphisms
 10:30 - 11:20 Steven Shin-Yi Lu (UQAM) Curves on surfaces of log-general type
 11:20 - 11:50 Coffee break
 11:50 - 12:40 Shigeru Kuroda (Tokyo Metropolitan University) Initial algebras and the Jung-van der Kulk theorem

 12:40 - 15:00 Lunch break

 Meeting room : 920, Burnside Hall, McGill University

 15:00 - 15:50 Jason Bell (Simon Fraser University) Automorphisms of affine varieties and the Skolem-Mahler-Lech theorem
 15:50 - 16:20 Coffee break
 16:20 - 16:45 Karol Palka (Polish Academy of Sciences) Singular $Q$-homology planes
 16:50 - 17:15 TBA

## Thursday, June 4, 2009

 Meeting room : 920, Burnside Hall, McGill University

 09:30 - 10:20 Kayo Masuda (Kwansei Gakuin University) Homogeneous locally nilpotent derivations and embeddings of affine spaces
 10:30 - 11:20 Stéphane Vénéreau (Universität Basel) On finding variables in $k[X,Y,Z_1,\dots ,Z_n]$
 11:20 - 11:50 Coffee break
 11:50 - 12:40 Zbigniew Jelonek (Polish Academy of Sciences) How to constructs varieties without cancellation property?

 12:40 - 15:00 Lunch break

 Meeting room : 920, Burnside Hall, McGill University

 15:00 - 15:50 Lucy Moser-Jauslin (Université de Bourgogne) Some results on the Koras-Russell cubic threefold
 15:50 - 16:20 Coffee break
 16:20 - 17:10 Gene Freudenburg (Western Michigan University) Embeddings of sffine space using Chebyshev polynomials and their successors

## Friday, June 5, 2009

 Meeting room : 920, Burnside Hall, McGill University

 09:30 - 10:20 Mariusz Koras (Warsaw University) Linearization of $C^*$-actions and related problems
 10:30 - 11:20 Daniel Daigle (Université d'Ottawa) Hypersurfaces of $\mathbb{A}^3$ with trivial Makar-Limanov invariant
 11:20 - 11:50 Coffee break
 11:50 - 12:40 Hubert Flenner (Ruhr University Bochum) Uniqueness of $\mathbf C^*$-action

 12:40 - 15:00 Lunch break

 Meeting room : 920, Burnside Hall, McGill University

 15:00 - 15:50 Vladimir Popov (Steklov Mathematical Institut) Two orbits: when is one in the closure of the other?
 15:50 - 16:20 Coffee break
 16:20 - 17:10 Rajendra Vasant Gurjar (Tata Institute of Fundamental Research) Some inequalities between order of the divisor class group and multiplicity of rational surface singularities