2024

• AMS Special Session on Automorphisms of Riemann Surfaces and Related Topics
  Central Spring Sectional Meeting, Milwaukee, WI
  April 20-21
• New perspectives in Computational Group Theory
  University of Warwick
  June 24-26
• International Congress on Mathematical Software
  Durham University, UK
  July 22-25
• 17th Conference on Intelligent Computer Mathematics
  Montreal, Quebec
  August 5-9

2023

• AMS Special Session on Arithmetic Geometry Informed by Computation
  Joint Mathematics Meeting
  Boston, January 4-7
• Simons Collaboration on Arithmetic Geometry, Number Theory, and Computation Annual Meeting
  New York City
  January 11-12
• Workshop on Surfaces in the Frontier
  hybrid (Universidad Nacional de Colombia)
  February 1-3
• The first conference on the LMFDB, Computation, and Number Theory
  Organizer
  ICERM, July 10-14
• Simon Fraser University Number Theory and Algebraic Geometry Seminar
  SFU, October 12

2022

• Simons Collaboration on Arithmetic Geometry, Number Theory, and Computation Annual Meeting
  Online
  January 13
• AMS Special Session on Automorphisms of Riemann Surfaces, Subgroups of Mapping Class Groups and Related Topics
  Organizer
  Spring Eastern Sectional Meeting
  Tufts University online, March 19-20 (rescheduled from 2020)

2021

• AMS Special Session on Algebraic and Arithmetic Geometry
  Joint Mathematics Meeting (online)
  January 6-9
• Curves over Finite Fields: Past, Present, and Future (online)
  May 24-28
• South-North Latin American Workshop on Geometry I (online)
  May 26-29
• USA-Chile Workshop on Hyperbolic Geometry (online)
  June 7-9

2020

• Simons Collaboration on Arithmetic Geometry, Number Theory, and Computation Annual Meeting
  New York City
  January 9-10
• AMS Special Session on Rational Points on Algebraic Varieties: Theory and Computation
  Joint Mathematics Meeting
  Denver
  January 15-18
• AMS Special Session on Automorphisms of Riemann Surfaces, Subgroups of Mapping Class Groups and Related Topics (Organizer)
  Spring Eastern Sectional Meeting
  (cancelled-hopefully rescheduled Spring 2022)
  Tufts University
  March 21-22
• Workshop on Arithmetic Geometry, Number Theory, and Computation
  Project Leader
  ICERM (online)
  June 1-5
• Fourteenth Algorithmic Number Theory Symposium
  Program Committee Member
  University of Auckland, New Zealand (online)
  June 29-July 4
• Colloquium Talk at Universidad de la Frontera [pdf]
  August 7
• Inagural Workshop for the Research Center "Geometry at the Frontier" at Universidad de La Frontera
  Temuco, Chile (online)
  October 28-30, 2020

2019

• AMS Special Session on Geometry and Topology in Arithmetic
  Fall Central Sectional Meeting
  University of Wisconsin, September 14-15
• Arithmetic of Low-Dimensional Abelian Varieties
  ICERM
  June 3-7
• Groups in the LMFDB
  AIM SQuaRE
  May 20-24
• Connections in the LMFDB
  IAS
  March 18-22
• Simons Collaboration on Arithmetic Geometry, Number Theory, and Computation Annual Meeting
  New York City
  January 10-11

2018

• CMS Winter Meeting Special Session on Explicit Methods in Arithmetic Geometry
  Vancouver, BC
  December 8-10
• Arithmetic Geometry, Number Theory, and Computation
  MIT
  August 20-24
• 13th Algorithmic Number Theory Conference (ANTS XIII)
  University of Wisconsin, Madison
  July 16-18
  local co-organizer
• AMS Special Session on Automorphism of Riemann Surfaces and Related Topics
  Spring Western Sectional Meeting
  Portland, Oregon
  April 14-15
• Iberoamerican Congress on Geometry
  Valladolid, Spain
  January 22-26
• AMS Special Session on A Showcase of Number Theory at Liberal Arts Colleges
  Joint Mathematics Meeting
  San Diego
  January 10-13

2017

• Geometry at the Frontier II
  Pucón, Chile
  November 13-17
• Symmetries of Surfaces, Maps and Dessins
  Banff International Research Station
  September 24-29

2016

• Canadian Number Theory Association XIV
  University of Calgary
  June 20-24
• Bristol LMFDB Workshop
  March 21-April 1
  

2015

• Mathematics Colloquium
  Universidad de Talca, Chile
  October 9

2014

• AMS Special Session on Number Theory
  Central Fall Sectional Meeting, Eau Claire, WI
  September 20-21
• ICM 2014- International Congress of Mathematicians, Seoul, Korea
  August 13-21
• Poster Session
  ANTS-XI - Algorithmic Number Theory Symposium
  August 7-11
• Special Session on Group Actions in Algebra and Geometry
  ACA 2014- Applications of Computer Algebra, Fordham University, NY
  July 9-12

2013

• AMS Special Session on Computational Advances on Special Functions and Tropical Geometry
  Spring Central Sectional Meeting, Ames, IA
  April 27-28
• Mathematics Colloquium, Universidad de Chile
  March 20

2012

• Natural Science Colloquium, Illinois Wesleyan
  November 30
• Berkeley Number Theory Seminar
  October 24
• Algorithmic Number Theory Symposium X
  San Diego, July 9-13
• AMS Special Session on Arithmetic Geometry (Co-organizer)
  Joint Mathematics Meetings, January 4-7
  Program

2011

• SMPosium 2011, Carelton College
  June 30- July 2
• Pacific Northwest Number Theory Conference
  May 7
• Colloquium Talk Center for Communications Research-Princeton
  March 8
• Colloquium Talk Grinnell College
  March 2
• Colloquium Talk University of Idaho
  February 24

2010

• Western Number Theory Conference Utah Valley University
  December 15-18
• Colloquium Talk Bryn Mawr College
  November 29
• Illinois Number Theory Conference
  May 21-22 [slides]
• Colloquium Talk Villanova University
  February 19
• Colloquium Talk Colby College
  February 10
• AMS-MAA Joint Meetings, January
  • AMS Special Session on Arithmetic Geometry (Co-organizer). [slides]
  • MAA-AMS-MER Invited Paper Session on Mathematics and Education Reform
  • AMS Session on Number Theory [slides]

2009

• Colloquium Talk Iowa State University
  October 27
• Special Session on Automorphisms of Riemann Surfaces and Related Topics
  AMS Fall Eastern Section Meeting, October 24-25
  My car's fuel pump prevented me from attending, but here are the slides for the talk I was planning to give. [slides]
• Number Theory Seminar University of Calgary
  July 20
• Dartmouth Number Theory Seminar
  May 21
• Colloquium Talk University of Alaska - Fairbanks
  March 26
• Colloquium Talk North Dakota State University
  February 5
• AMS Special Session on Group Actions on Curves
  Joint Meetings, January [slides]

2008

• Western Number Theory Conference Colorado State University
  December 15-18 [slides]
• Number Theory Seminar University of Georgia
  December 10
• Women In Numbers Banff International Research Station
  November 2-7
• Canadian Number Theory Association X Meeting (CNTA X) University of Waterloo
  July 13-18 [slides]
• Colloquium Talk Dartmouth College
  May 29
• Eighth Algorithmic Number Theory Symposium ANTS- VIII Banff Center
  May 17-22
• Colloquium Talk University of Nebraska-Lincoln
  April 11
• AMS Special Session on Low Genus Curves and Applications
  Joint Meetings, January [slides]

2007

• Colorado State University Algebra Seminar
  October
• Rational Points on Curves Banff International Research Station
  February
• AMS Special Session on Arithmetic of Function Fields Joint Meetings: New Orleans
  January

2006

• Canadian Number Theory Meeting IX, Vancouver, BC
  July
• Arizona Winter School, Tuscon, AZ
  March

2005

• West Coast Number Theory Conference, Asilomar, CA
  December
• Midwest Number Theory Conference for Graduate Students III, Madison, WI
  November
• Midwest Number Theory Conference for Graduate Students II, Urbana, IL
  February

2004

• West Coast Number Theory Conference, Las Vegas, NV
  December
• Canadian Number Theory Association Meeting VIII, Toronto
  June