Arbeitsgemeinschaft: Relative Langlands Duality.

Co-organized with David Ben-Zvi and Akshay Venkatesh.
March 30–April 4, 2025, Mathematisches Forschungsinstitut Oberwolfach.

JHUnior Number Theory Days 2024/25

Co-organized with David Savitt.
Saturday and Sunday, 8–9 February 2025 at Johns Hopkins University.

Johns Hopkins University & University of Maryland Algebra and Number Theory Day

Co-organized with Dori Bejleri.
Saturday, 23 November 2024 at Johns Hopkins University.
Speakers: Laura DeMarco, Mihnea Popa, and Alexander Petrov.

Representation Theory and Lie Groups – in celebration of the career of Jeffrey Adams.

Co-organized with Tom Haines, Paul Mezo, and Annegret Paul.
14–17 October, 2024, at the Brin Mathematics Research Center.

Periods in algebraic geometry and automorphic forms.

Co-organized with Francis Brown and Bruno Klingler.
22–27 July, 2024, in Nisyros, Greece.

Johns Hopkins University & University of Maryland Algebra and Number Theory Day

Co-organized with Tom Haines.
Saturday, 20 April 2024 at the University of Maryland.
Speakers: Jeremy Hahn, David Helm, and Karl Schwede.

Special Session on Automorphic Forms and Trace Formulae, AMS Eastern Sectional Meeting

Co-organized with Spencer Leslie and Ngô Bao Châu.
Saturday and Sunday, April 6–7 at Howard University.

Junior Number Theory Days 2023/24

Co-organized with David Savitt.
Saturday and Sunday, 10–11 February 2024 at Johns Hopkins University.

Johns Hopkins University & University of Maryland Algebra and Number Theory Day

Co-organized with Tom Haines.
Saturday, 4 November 2023 at Johns Hopkins University.
Speakers: Sean Howe, Eric Larson, Isabel Vogt, Xinwen Zhu.

Anaparastaseis: Orbits, Hecke algebras, and representations.

Co-organized with Dan Ciubotaru, Jessica Fintzen, Xuhua He.
13–19 July, 2023, in Nisyros, Greece.

Periods.

Co-organized with Giuseppe Ancona, Javier Fresán, Bruno Klingler, and Charles Vial.
6–11 July, 2023, in Nisyros, Greece.

Johns Hopkins University & University of Maryland Algebra and Number Theory Day

Co-organized with Tom Haines.
Saturday, 22 April 2023 at Johns Hopkins University.
Speakers: Ben Elias, Lillian Pierce, Sug Woo Shin.

Junior Number Theory Days 2022

Co-organized with David Savitt.
Friday and Saturday, 3–4 December 2022 at Johns Hopkins University.

Johns Hopkins University & University of Maryland Algebra and Number Theory Day

Co-organized with Tom Haines.
Saturday, 12 November 2022 at the University of Maryland.
Speakers: Tony Feng, Michael Larsen, Burt Totaro.

2022 IHES summer school on the Langlands program

Co-organized with Pierre-Henri Chaudouard, Wee Teck Gan, and Tasho Kaletha.
11–29 July 2022 at IHES, France.

Johns Hopkins University & University of Maryland Algebra and Number Theory Day

Co-organized with Tom Haines.
Saturday, 23 April 2022 at the University of Maryland.
Speakers: Vesselin Dimitrov, Dennis Gaitsgory, Giulia Saccà.

Periods, functoriality and L-functions

Co-organized with Raphaël Beuzart-Plessis and Nadya Gurevich.
10–14 January, 2022, at CIRM, Luminy.

Junior Number Theory Days 2021

Co-organized with David Savitt.
Friday and Saturday, 4–5 December 2021 at Johns Hopkins University.

Johns Hopkins University & University of Maryland Algebra and Number Theory Day

Co-organized with Tom Haines.
Saturday, 11 September 2021 at Johns Hopkins University.
Speakers: David Ben-Zvi, Jayce Getz, Ivan Loseu, Mona Merling, Carl Wang-Erickson.

Johns Hopkins University & University of Maryland Algebra and Number Theory Day

Co-organized with Tom Haines.
Saturday, 24 April, 2021. (Online.)
Speakers: Jarod Alper, Chandrashekhar Khare, Bao Le Hung, Emily Norton, Lue Pan.

Junior Number Theory Days 2020

Co-organized with David Savitt.
Friday and Saturday, 4–5 December 2020. (Online.)

Johns Hopkins University & University of Maryland Algebra and Number Theory Day

Co-organized with Tom Haines.
Saturday, November 7, 2020. (Online.)
Speakers: Irina Bobkova, Chao Li, Sam Raskin, Gordan Savin, and Will Sawin.

Functoriality and Automorphic Periods

Co-organized with Raphaël Beuzart-Plessis and Tasho Kaletha.
20–25 July, 2020, in Nisyros, Greece.
The conference has been CANCELLED. We will try to reschedule it in the summer of 2021.

The local Langlands correspondence for supercuspidal representations

Mini-school.
Speakers: Tasho Kaletha, Jessica Fintzen, Loren Spice
POSTPONED until Spring 2021.

Junior Number Theory Days 2019

Co-organized with David Savitt.
Saturday and Sunday, 7–8 December 2019 at Johns Hopkins.

Johns Hopkins University & University of Maryland Algebra and Number Theory Day

Co-organized with Tom Haines and Brian Smithling.
Saturday, November 9, 2019 at the University of Maryland.
Speakers: Henri Darmon, Mark Andrea de Cataldo, Akhil Mathew, Evangelia Gazaki, and Hang Xue.

L-Functions and Geometric Representation Theory

Co-organized with Ngô Bảo Châu and Akshay Venkatesh.
22–27 July, 2019, in Nisyros, Greece.

Sphericity 2019

Co-organized with Bernhard Krötz and Job Kuit.
14–18 January, 2019, at CIRM, Luminy.

Junior Number Theory Days 2018

Co-organized with Zhengyu Mao.
Friday and Saturday, 2–3 November 2018 at Rutgers University–Newark.

Representation theory and analysis on locally symmetric spaces

Co-organized with Erez Lapid and Akshay Venkatesh.
March 5–9, 2018 at the Institute for Advanced Study.

Junior Number Theory Days 2017

Co-organized with Zhengyu Mao.
Friday and Saturday, 17–18 November 2017 at Rutgers University–Newark.

Automorphic Motives, Euler Systems & p-adic L-functions

Co-organized with Michael Harris and Victor Rotger.
10–15 July 2017, in Nisyros, Greece.

Junior Number Theory Days 2016

Co-organized with Zhengyu Mao.
Friday and Saturday, 18–19 November 2016 at Rutgers University–Newark.

2nd Nisyros conference on automorphic representations & related topics.

Co-organized with Ngô Bảo Châu.
13–18 June 2016, in Nisyros, Greece.

Relative Trace Formula, Periods, L-Functions and Harmonic Analysis.

Co-organized with Pierre-Henri Chaudouard, Volker Heiermann, and Dipendra Prasad.
23–27 May 2016 at CIRM, Luminy.

Sphericity 2016

Co-organized with Friedrich Knop, Bernhard Krötz, and Eric Opdam.
21–27 February, 2016, at Kloster Reute, Germany.

Junior Number Theory Days 2015

Co-organized with Zhengyu Mao.
Friday and Saturday, 20–21 November 2015 at Rutgers University–Newark.

1st Nisyros conference on automorphic representations & related topics.

12–19 July 2015, in Nisyros, Greece.

The future of trace formulas

Co-organized with Wee Teck Gan, Chung Pang Mok, and Shuichiro Takeda.
1–6 June 2014 at the Banff International Research Station.

Spherical varieties and automorphic representations

Co-organized with Friedrich Knop.
12–18 May 2013 at MF Oberwolfach.