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Theme Year 1998-1999
Number Theory and Arithmetic Geometry

The theme year in number theory and arithmetic geometry will emphasize several current directions:
Algebraic cycles and Shimura varieties, Elliptic curves and modular forms, Representations of p-adic
groups, Analytic theory of automorphic L-functions. The year will be organized around a certain number of
workshops, seminar courses and mini-courses spread throughout the year. Following is a schedule of
events:
Workshop on Algebraic modular forms and modular forms mod p
2-8 October 1998
The last decades have witnessed the emergence of a "Langlands philosophy mod p" which (among other
things) relates Galois representations to modular forms mod p. This instructional workshop will survey
this circle of ideas, with a special emphasis on (1) Gross's theory of "algebraic modular forms" and (2)
the progress on Serre's conjectures arising from the work of Ribet, Taylor, and Wiles.
There will be three lecture series.
- B. Gross (Harvard):
Algebraic modular forms
- K. Ribet (UC Berkeley):
Congruences between modular forms
- S. Kudla (Maryland):
The Siegel-Weil formula
- Organizers:
- H. Darmon (McGill and CICMA) and G. Savin (Utah)
Workshop on Analytic number theory
24-27 October 1998
The workshop will focus on recent developments in analytic number theory with special emphasis on
non-vanishing theorems for L-functions attached to automorphic forms.
- Organizer:
- R. Murty (Queen's)
- Invited Speakers:
- K. Dilcher, J. Friedlander, S. Gonek, J. Hoffstein, H. Iwaniec, K. Murty, R. Murty, M. Nair, R. Raghunathan, C.S. Rajan, C. Stewart
CMS Winter Meeting
Special session in number theory
(Queen's Univ., Kingston, Ontario)
13-15 December 1998
- Organizers:
- R. Murty (Queen's) and N. Yui (Queen's)
- Invited Speakers:
- H. Darmon, C. David, J. Fabrykowski, C. Greither, H. Kisilevsky, M. Kolster, A. Ledet, C.
Levesque, K. Murty, V. Platonov, D. Roy, G. Walsh, H. Williams, K. Williams
Workshop on Representations of reductive p-adic groups
9-13 May 1999
The main focus of the workshop will be construction of K-types
for admissible representations, and Hecke algebras and their representations.
- Organizer:
- F. Murnaghan (Toronto)
- Invited Speakers:
- J. Adler, S. DeBacker, D. Goldberg, A. Helminck, C. Jantzen, P. Kutzko, D. Manderscheid,
L. Morris, A. Moy, M. Reeder, B. Roberts, A. Roche, P. Sally Jr., G. Savin, J.-K. Yu
Workshop on Arithmetical algebraic geometry
14-18 May 1999
Arithmetic algebraic geometry covers a range of possible topics, and a
number of graduate students will be attending the workshop, so participants
have been asked to address their lectures to a wide audience and to attempt to
deliver "survey talks".
- Organizers:
- M. Goresky (IAS) and K. Murty (Toronto)
- Invited Speakers:
- A. Baragar, D. Boyd, W. Casselman, H. Darmon, B. Gordon, M. Goresky, E. Kani, M. Kolster,
J. Kramer, J. Lewis, K. Murty, M. Nori, Frans Oort, J. Scherk, N. Wieslawa, N. Yui, S.-W. Zhang
Moonshine Workshop
29 May - 4 June 1999
"Moonshine" started in 1978 with the observation that representations of some
sporadic groups are naturally parametrized by the Fourier coefficients of certain
modular forms. The functions arising here are axiomatizable as replicable functions
from their behaviour under a generalized Hecke operator.
There is a panoply of mathematics used in these investigations. Vertex algebras,
graded Lie algebras, conformal field theory, automorphic functions, Fuchsian
groups, computational algebra, Schwarz derivatives, Hecke operators, representation
theory, and mirror maps all appear.
The workshop, one in a two yearly series, will focus on recent developments on the subject.
- Organizer:
- J. McKay (Concordia)
- Invited Speakers:
- A.O.L. Atkin (Illinois, Chicago),
A. Baker (Glasgow),
S.J. Bloch (Chicago),
M. Brightwell (Glasgow),
J. Conway (Princeton),
I.V. Dolgachev (Michigan),
C.-Y. Dong (UC Santa Cruz),
B. Dubrovin (SISSA, Trieste),
P. Goddard FRS (Cambridge),
G.I. Glauberman (Chicago),
R.L. Griess Jr. (Michigan),
K. Harada (Ohio State),
M.J. Hopkins (M.I.T.),
G. Mason (UC Santa Cruz),
S.P. Norton (Cambridge),
A.J. Ryba (Michigan),
K. Saito (Kyoto),
H. Tamanoi (UC Santa Cruz),
M. Tuite (National University of Ireland, Galway),
S.-T. Yau (Harvard),
N. Yui (Queen's)
6th Conference of the Canadian Number Theory Association
(Winnipeg, Manitoba)
Co-sponsored by the CRM and The Fields Institute
20-24 June 1999
- Organizers:
- J. Borwein (Simon Fraser), D. Boyd (UBC), C. David (Concordia), R. Murty (Queen's), P. N. Shivakumar (Manitoba),
C. Stewart (Waterloo), H. Williams (Manitoba)
- Invited Speakers:
- M. Bennett (IAS), F. Beukers (Utrecht), A. Bremner (Arizona State), D. Bressoud (Macalester College, MN), H. Darmon
(McGill), J. Friedlander (Toronto), J. Grantham (Georgia), H. Kisilevsky (Concordia), M. Kolster (McMaster), H. W.
Jenstra, Jr. (Berkeley), L. Merel (Paris), A. Odlyzko (AT&T Labs, NJ), K. Ono (Penn State), B. Poonen (Berkeley), D Roy
(Ottawa), P. Sarnak (Princeton), W. Schmidt (Colorado), K. Soundararajan (Princeton) G. Stevens (Boston U), S. Vanstone
(Waterloo), T. Wooley (Michigan, Ann Arbor)
Seminar courses
Seminar courses will last from one to three months.
Modular forms and the Birch and Swinnerton-Dyer conjecture
- Lecturer: Henri Darmon (McGill and CICMA)
- The goal of this seminar is to survey the recent progress on the Birch and Swinnerton Dyer conjecture which
follows from the work of Kolyvagin and Wiles. In particular we will try to present a complete proof of the
following statement: Let E be an elliptic curve over Q whose
L-function is nonzero at s=1. Then the Mordell-Weil group
E(Q) is finite.
- Dates & Times: Every Thursday, from September 17, 1998 to April 1, 1999, 8:00-10:00
- Location: CRM, Univ. de Montréal, Pavillon André-Aisenstadt, Room 5340
Elliptic and Hilbert Modular forms
- Speaker: Eyal Goren (CICMA, Concordia & McGill)
- Dates & Times: Every Tuesday from September 8, 1998 to April 6, 1999, 14:00-16:00
- Location: CRM, Univ. de Montréal, Pavillon André-Aisenstadt, Room 5340
The Chebotarev density theorem and some applications
- Speaker: Kumar Murty (Toronto)
- The Chebotarev Density Theorem is a fundamental tool in number theory and arithmetic geometry.
We shall discuss effective versions of this theorem and some of its applications.
- Dates: October 9, 14, 16, 19, 21, and 30, 1998
- Complete Schedule
An Introduction to Sieve Methods
- Lecturer: Ram Murty (Queen's)
- This short course will survey sieve methods and some of its applications. After looking at the sieve of
Eratosthenes, we will discuss the sieve methods of Brun, Selberg and Linnik. We will then examine
applications of these methods to such questions as Artin's primitive root conjecture, squarefree values of
polynomials, and structure of the group of points mod p of a global elliptic curve. The course will consist
of a total of six lectures.
- Dates & Times: November 5, 10, 12, 17, 19 & 24, 1998, 10:30-12:00
- Complete Schedule
Modular forms and the Birch and Swinnerton-Dyer conjecture
- Speaker: Henri Darmon (McGill & CICMA)
- Dates & Times: Every Thursday from January 7 to March 25, 1999, 8:30-10:00
- Location: CRM, Univ. de Montréal, Pavillon André-Aisenstadt, Room 5340
Elliptic and Hilbert Modular forms
- Speaker: Eyal Goren (CICMA, Concordia & McGill)
- Dates & Times: Every Tuesday from January 12 to March 30, 1999, 15:30-17:00
- Location: CRM, Univ. de Montréal, Pavillon André-Aisenstadt, Room 5340
Mini-courses
There will be several mini-courses of two weeks each, spread throughout the year.
Iwasawa Theory of Modular Forms
- Lecturer: Massimo Bertolini (Universita di Pavia)
- Dates & Times: September 17, 22, 24 & 29, 1998, 10:30-12:00
- Complete Schedule
Ordinary Representations and Modular Forms
- Lecturer: Chris Skinner (Institute for Advanced Study)
- Dates: October 15, 20 & 22, 1998
- Complete Schedule
Rankin-Selberg L-functions
- Lecturer: C.S. Rajan (Tata Institute)
- Dates & Times: November 5, 10, 12 & 17, 1998, 14:15-15:45
- Complete Schedule
Modular Forms and Modular Curves
- Lecturer: Imin Chen (CICMA, Concordia & McGill)
- Dates: January 7, 12, 14 and 19, 1999
- Complete Schedule
Automorphic forms over function fields
- Lecturer: Andreas Schweizer (CICMA, Concordia & McGill)
- January 21, 1999, McGill Univ., Burnside Hall, Room 920, 10:30-12:00
- January 26, 28, February 2, 1999, Univ. de Montréal, Pav. André-Aisenstadt, Room 5340, 10:30-12:00
Topics in p-adic Galois representations
- Lecturer: A. Iovita (CICMA, Concordia & McGill)
- February 4, 1999, McGill Univ., Burnside Hall, Room 920, 10:30-12:00
- February 9, 11, 16, 1999, Univ. de Montréal, Pav. André-Aisenstadt, Room 5340, 10:30-12:00
Hilbert modular varieties
- Lecturer: Eyal Goren (CICMA, Concordia & McGill)
- Timetable:
- February 18, 1999, McGill Univ., Burnside Hall, Room 920, 10:30-12:00
- February 18, 1999, Concordia Univ., Library Building, Room LB540, 14:15-15:45
- March 2, 1999, Univ. de Montréal, Pav. André-Aisenstadt, Room 5340, 10:30-12:00
- March 2, 1999, Univ. de Montréal, Pav. André-Aisenstadt, Room 5340, 14:15-15:45
The spectrum of multiplicative values
The distribution and extreme values of L-functions
- Lecturer: Andrew Granville (Georgia)
- March 4, 1999, McGill Univ., Burnside Hall, Room 920, 10:30-12:00
- March 9, 11, 16, 1999, Univ. de Montréal, Pav. André-Aisenstadt, Room 5340, 10:30-12:00
Polynomial constructions, Galois theory and elliptic curves
- Lecturer: Jean-François Mestre (Paris VII, Jussieu)
- March 18, 1999, McGill Univ., Burnside Hall, Room 920, 10:30-12:00
- March 23, 25, 30, 1999, Univ. de Montréal, Pav. André-Aisenstadt, Room 5340, 10:30-12:00
Representations of reductive p-adic groups
- Lecturer: Fiona Murnaghan (Toronto)
- April 20, 22, 27 & 29, 1999, Univ. de Montréal, Pav. André-Aisenstadt, Room 5340, 14:00-15:30
Chaire Aisenstadt Lectures
NOTE:
The lectures of Professeur Andrew Wiles (Princeton), scheduled for September 1998, have been cancelled.
A Series of Lectures
Professor Frans Oort
Universiteit Utrecht
May 1999
Barsotti-Tate Groups and Newton Polygons
a proof of a conjecture by Grothendieck, Montréal 1970
Organizing Committee
- Henri Darmon (McGill and CICMA)
- Mark Goresky (IAS)
- Hershy Kisilevsky (Concordia and CICMA)
- Fiona Murnaghan (Toronto)
- Kumar Murty (Toronto)
- Ram Murty (Queen's), Chair
Those wishing to participate in the above activities are invited to contact:
Louis Pelletier
CRM, Université de Montréal
C.P. 6128, Succ. centre-ville
Montréal (Québec) CANADA H3C 3J7
E-mail: ACTIVITES@CRM.UMontreal.CA
FAX: (514) 343-2254
Telephone: (514) 343-2197
18 May 1999, webmaster@CRM.UMontreal.CA