WCNT 2021: Problems in Number Theory

We are pleased to announce the winners of the 2021 Emma and Dick Lehmer prizes, given to the organizing committee’s favorite talks of the conference. Since we were having an agonizingly difficult time picking just two excellent talks, and since we didn’t give out any awards during the pandemic pause of 2020, we decided to double the number of recipients this time around.

The 2021 recipients of the Lehmer Prize are:

• Shanna Dobson: Diamond L-Groups and Diamond Modular Curve
• Vaishavi Sharma: Arithmetic properties of the divisor function
• Johann Thiel: Solving the membership problem for certain subgroups of SL_2(Z)
• Sarah Arpin: Supersingular Elliptic Curve Isogeny Graphs with Level Structure

Congratulations to all our award winners, and we hope to see you in 2022!

We are pleased to announce the winners of the 2019 Emma and Dick Lehmer prizes, given to the committee’s favorite talks of the conference. The 2019 recipients are:

• Nandita Sahajpal — Rational Zeros of a System of Two Quadratic Forms
• Evan M. O’Dorney — Reflection theorems for class numbers of binary forms

Congratulations to our 2019 recipients!

We are pleased to announce the winners of the 2018 Emma and Dick Lehmer prizes, given to the committee’s favorite talks of the conference. The 2018 recipients are:

• David Nguyen: The k-fold divisor function in arithmetic progression to large moduli
• Simon Rubinstein-Salzedo: Diophantine tuples over Z_p

Congratulations to our 2018 recipients!

We are pleased to announce the winners of the 2017 Emma and Dick Lehmer prizes, given to the committee’s favorite talks of the conference. The 2017 recipients are:

• Lee Troupe. Counting subgroups of the multiplicative group
• Enrique Treviño. Counting perfect polynomials
• Kelly Emrich, Clark Lyons. Norm-Euclidean Ideal Classes in Galois Cubic Fields

Congratulations to our 2017 recipients!

We are pleased to announce the winners of the 2016 Emma and Dick Lehmer prizes, given to the committee’s favorite talks of the conference. The 2016 recipients are:

• Bianca Thompson: On the Field of Definition of a Cubic Rational Function and its Critical Points
• Andrew Shallue: Average liar counts for degree 2 Frobenius pseudoprimes

Congratulations to our 2016 recipients!

We are pleased to announce the winners of the 2015 Emma and Dick Lehmer prizes, given to the committee’s favorite talks of the conference. The 2015 recipients are:

• Nitya Mani: N-Division Points of Hypocycloids
• Andreas Weingartner: Polynomial Analogues of Some Results in Number Theory

Congratulations to our 2015 recipients!