May 04, 2026
Monday
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09:15 AM - 09:30 AM
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Opening Remarks
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09:30 AM - 10:30 AM
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Random profinite groups and arithmetic statistics
Melanie Matchett-Wood (Harvard University; University of California, Berkeley)
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10:30 AM - 11:00 AM
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Coffee Break
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11:00 AM - 12:30 PM
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Galois cohomology: Definition of H0/H1, Selmer group
Alexander Smith (Northwestern University)
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12:30 PM - 02:30 PM
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Lunch
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02:30 PM - 04:00 PM
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Introduction to counting orbits of coregular representations: 3-torsion in quadratic class groups
Niven Achenjang (Massachusetts Institute of Technology)
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04:00 PM - 05:00 PM
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Arithmetic Stats working session: Cohomology
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May 05, 2026
Tuesday
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09:00 AM - 10:30 AM
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Introduction to multiplicative chaos: Steinhaus model of zeta. Chaos.
Christian Webb (University of Helsinki)
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10:30 AM - 11:00 AM
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Coffee Break
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11:00 AM - 12:30 PM
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Extrema of log-correlated processes: BRW, log-correlated processes
Louis-Pierre Arguin (University of Oxford)
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12:30 PM - 02:30 PM
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Lunch
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02:30 PM - 05:00 PM
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Probability working session: I/ Estimates for random Euler products II/Some problems on ballots
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May 06, 2026
Wednesday
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09:30 AM - 10:30 AM
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Random profinite groups and arithmetic statistics
Melanie Matchett-Wood (Harvard University; University of California, Berkeley)
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- Location
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- Video
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- Supplements
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10:30 AM - 11:00 AM
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Coffee Break
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- Video
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11:00 AM - 12:00 PM
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Galois cohomology: Applications to arithmetic statistics
Alexander Smith (Northwestern University)
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- Location
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02:30 PM - 05:00 PM
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Arithmetic Stats working session Cohomology
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May 07, 2026
Thursday
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09:00 AM - 10:30 AM
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Introduction to multiplicative chaos: Critical Chaos
Christian Webb (University of Helsinki)
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10:30 AM - 11:00 AM
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Coffee Break
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11:00 AM - 12:30 PM
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Extrema of log-correlated processes: Tightness of the maxima of Steinhaus model. Berry Esseen estimates
Louis-Pierre Arguin (University of Oxford)
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12:30 PM - 02:30 PM
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Lunch
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02:30 PM - 05:30 PM
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Probability working session: I/ Some harmonic analysis, approximating indicators by polynomials; II/ Relating Steinhaus to Gaussian, coupling
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May 08, 2026
Friday
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09:30 AM - 10:30 AM
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Random profinite groups and arithmetic statistics
Melanie Matchett-Wood (Harvard University; University of California, Berkeley)
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- Location
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- Video
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- Abstract
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- Supplements
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10:30 AM - 11:00 AM
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Coffee Break
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- Location
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- Video
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- Supplements
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11:00 AM - 12:30 PM
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Introduction to counting orbits of coregular representations: counting in the cusp and 2-Selmer groups
Niven Achenjang (Massachusetts Institute of Technology)
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- Location
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May 11, 2026
Monday
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09:00 AM - 10:00 AM
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Introduction to multiplicative chaos: Strategies for chaos for zeta
Christian Webb (University of Helsinki)
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- Location
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10:00 AM - 10:30 AM
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Coffee Break
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- Location
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- Video
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- Supplements
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10:30 AM - 11:30 AM
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Extrema of log-correlated processes: Maxima of zeta in short intervals
Louis-Pierre Arguin (University of Oxford)
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- Location
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- Supplements
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11:30 AM - 12:00 PM
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Break
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- Location
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12:00 PM - 01:00 PM
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Introduction to random multiplicative functions
Adam Harper (University of Warwick)
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01:00 PM - 03:00 PM
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Lunch
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03:00 PM - 04:00 PM
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Points on varieties: The circle method
Tim Browning (Institute of Science and Technology Austria)
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04:00 PM - 05:00 PM
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Working session on points on varieties
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May 12, 2026
Tuesday
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09:00 AM - 10:00 AM
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Statistics of L-functions over finite fields
Alexandra Florea (University of California, Irvine)
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10:00 AM - 10:30 AM
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Coffee Break
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10:30 AM - 11:30 AM
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Moments of L-functions over number fields
Maksym Radziwill (Northwestern University)
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11:30 AM - 12:00 PM
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Break
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12:00 PM - 01:00 PM
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Points on varieties: The large sieve (for point counting or for studying local solubility in families)
Tim Browning (Institute of Science and Technology Austria)
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01:00 PM - 03:00 PM
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Lunch
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03:00 PM - 04:00 PM
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Introduction to random multiplicative functions
Adam Harper (University of Warwick)
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04:00 PM - 05:00 PM
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Working session on statistics of RMFs and of L-functions
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06:00 PM - 10:00 PM
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Women in Math - Film and Panel (see link below)
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https://www.concordia.ca/cuevents/artsci/math-stats/2026/05/12/international-women-in-math-day-film-projection-and-panel-discussion.html
Join us in celebrating International Women in Mathematics Day, May 12, with a film projection followed by a panel discussion.
Screening of the film Le Théorème de Marguerite (in French with English subtitles). This 2023 French fiction film, written and directed by Anna Novion and starring Ella Rumpf, portrays the experiences of a brilliant woman graduate student in mathematics, touching on many aspects of what it means to be a mathematician. The mathematician Ariane Mézard (Sorbonne) served as a consultant for the film, and the research depicted centers on Goldbach’s conjecture, a classical problem in number theory.
Panel discussion following the film. The panel will feature women mathematicians from diverse backgrounds and at different stages of their careers. The discussion will focus on collaboration, a central theme of the movie and an important aspect of career development, particularly relevant to women and individuals from underrepresented groups in mathematics. The following faculty members are confirmed to participate in the panel: Linan Chen (McGill), Lucile Devin (ULCO, France, visiting the IRL CRM-CNRS), Nadia Lafrenière (Concordia), and Patricia Sorya (U. Ottawa, 2025 Carl Herz prize recipient).
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May 13, 2026
Wednesday
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09:00 AM - 10:00 AM
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Points on varieties: The Ekedahl/geometric sieve
Tim Browning (Institute of Science and Technology Austria)
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10:00 AM - 10:30 AM
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Coffee Break
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10:30 AM - 11:30 AM
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Statistics of L-functions over finite fields
Alexandra Florea (University of California, Irvine)
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11:30 AM - 12:00 PM
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Break
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12:00 PM - 01:00 PM
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Moments of L-functions over number fields
Maksym Radziwill (Northwestern University)
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01:00 PM - 03:00 PM
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Lunch
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03:00 PM - 06:00 PM
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Working session on points on varieties
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May 14, 2026
Thursday
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09:00 AM - 10:00 AM
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Introduction to random multiplicative functions
Adam Harper (University of Warwick)
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- Location
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10:00 AM - 10:30 AM
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Coffee Break
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10:30 AM - 11:30 AM
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Statistics of L-functions over finite fields
Alexandra Florea (University of California, Irvine)
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- Location
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- Supplements
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11:30 AM - 12:00 PM
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Break
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12:00 PM - 01:00 PM
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Moments of L-functions over number fields
Maksym Radziwill (Northwestern University)
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- Location
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- Abstract
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01:00 PM - 03:00 PM
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Lunch
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03:00 PM - 06:00 PM
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Working session on statistics of RMFs and of L-functions
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May 15, 2026
Friday
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09:00 AM - 10:00 AM
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Hilbert 10
Carlo Pagano (Concordia University)
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10:00 AM - 10:30 AM
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Coffee Break
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10:30 AM - 11:30 AM
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Multiplication Table Problem and Permutations fixing a k-Set
Mehtaab Sawhney (Columbia University)
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11:30 AM - 12:00 PM
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Break
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12:00 PM - 01:00 PM
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Poissonian multiplicative chaos and divisor problems
Dimitris Koukoulopoulos (Université de Montréal)
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01:00 PM - 03:30 PM
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Lunch
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03:30 PM - 04:30 PM
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Andre-Aisenstadt lecture and Colloquium
Melanie Matchett-Wood (Harvard University; University of California, Berkeley)
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04:30 PM - 06:00 PM
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Reception
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