Tue | Feb 20 | 18:00 | Ziyang Gao | Sparsity of rational points on curves: What is known and what is expected | |

Tue | Feb 06 | 18:00 | Philipp Habegger | Conjectures on Unlikely Intersections: What is known and what is open? | |

Tue | Jan 23 | 18:00 | Hector Pasten | A criterion for algebraic degeneracy of integral points | |

Tue | Dec 19 | 18:00 | Noemie Combe | Avatars of Grothendieck—Teichmuller groups and the absolute Galois group | |

Tue | Dec 12 | 18:00 | Andrew Obus | Abhyankar's conjectures and fundamental groups | |

Tue | Dec 05 | 18:00 | Daniel Litt | Galois theory of local systems | |

Tue | Nov 14 | 18:00 | Jen Paulhus | Automorphism groups of compact Riemann surfaces | |

Tue | Nov 07 | 18:00 | Jesse Wolfson | Resolvent degree, Hilbert's 13th problem and geometry | |

Tue | Oct 31 | 17:00 | Sam Schiavone | In search of 17T7: explicit realizations of Galois groups | |

Tue | Oct 17 | 17:00 | Lior Bary-Soroker | On the discriminant of random polynomials | |

Tue | Oct 03 | 17:00 | David Harbater | An overview of the inverse Galois problem | |

Tue | May 23 | 17:00 | Abhishek Oswal | Lifts of supersingular and almost ordinary abelian varieties | |

Tue | May 02 | 17:00 | Sug Woo Shin | The Langlands-Rapoport conjecture and related topics | |

Tue | Apr 25 | 17:00 | Maria Fox | Supersingular loci of some unitary Shimura varieties | |

Tue | Apr 18 | 17:00 | Elena Mantovan | Density of primes of ordinary reduction for abelian varieties with simple signature | |

Tue | Apr 04 | 17:00 | Bryden Cais | Iwasawa theory for class group schemes in characteristic $p$ | |

Tue | Dec 06 | 18:00 | Damien Robert | Applications of isogenies between abelian varieties to elliptic curves cryptosystems | |

Tue | Nov 15 | 18:00 | Luca de Feo | Proving knowledge of isogenies, quaternions and signatures | |

Tue | Nov 08 | 18:00 | Chloe Martindale | Torsion-point attacks on the supersingular isogeny Diffie-Hellman key exchange protocol | |

Tue | Oct 18 | 17:00 | Wouter Castryck | An efficient key recovery attack on supersingular isogeny Diffie-Hellman | |

Tue | Oct 04 | 17:00 | Benjamin Smith | Isogenies in genus 2 for cryptographic applications | |

Tue | Sep 20 | 20:00 | Steven Galbraith | Isogeny graphs, computational problems, and applications to cryptography | |

Tue | Sep 20 | 17:00 | Kristin Lauter | Supersingular isogeny graphs in cryptography | |

Tue | Jul 12 | 17:00 | Robert Lemke Oliver | Upper bounds on number fields | |

Tue | Jun 28 | 17:00 | Stephanie Chan | Integral points in families of elliptic curves | |

Tue | Jun 14 | 17:00 | Ila Varma | Counting quartic number fields and predicting asymptotics | |

Tue | May 31 | 17:00 | Manjul Bhargava | Integers that are the sum of two rational cubes | |

Tue | May 24 | 17:00 | Ana Caraiani | Modularity over CM fields | |

Tue | May 10 | 17:00 | Ken Ribet | Ogg's conjecture for $J_0(N)$ | |

Tue | Apr 26 | 17:00 | Fred Diamond | Geometric Serre weight conjectures and $\Theta$-operators | |

Tue | Apr 12 | 17:00 | Hanneke Wiersema | Minimal weights of mod-$p$ Galois representations | |

Tue | Apr 05 | 17:00 | Chandrashekhar Khare | Serre's conjecture and computational aspects of the Langlands program | |

Tue | Mar 01 | 18:00 | Everett Howe | Deducing information about a curve over a finite field from its Weil polynomial | |

Tue | Feb 22 | 18:00 | Jeff Achter | Equidistribution counts abelian varieties | |

Tue | Feb 15 | 18:00 | Christelle Vincent | Exploring angle rank using the LMFDB. | |

Tue | Feb 01 | 18:00 | Stefano Marseglia | Computing isomorphism classes of abelian varieties over finite fields | |

Tue | Jan 18 | 18:00 | Valentijn Karemaker | Mass formulae for supersingular abelian varieties | |

Tue | Dec 14 | 18:00 | Ben Moonen | Jacobians with complex multiplication | |

Tue | Dec 07 | 18:00 | Jacob Tsimerman | Heights and the André Oort conjecture | |

Tue | Nov 23 | 18:00 | Ananth Shankar | Picard ranks of K3 surfaces and the Hecke orbit conjecture | |

Tue | Nov 09 | 18:00 | Wanlin Li | A generalization to Elkies' Theorem on infinitely many supersingular primes | |

Tue | Oct 26 | 17:00 | Noam Elkies | Supersingular reduction of elliptic curves | |

Tue | Oct 12 | 17:00 | David Roberts | Hurwitz-Belyi maps | |

Tue | Sep 28 | 17:00 | Irene Bouw | Belyi maps in positive characteristic | |

Tue | Sep 21 | 17:00 | Sam Schiavone | Belyi maps: Computation and data | |

Tue | Sep 14 | 17:00 | Ozlem Ejder | Dynamical Belyi maps | |

Tue | Aug 31 | 17:00 | Edray Goins | Critical points of toroidal Belyi maps | |

Tue | Aug 17 | 17:00 | John Voight | Belyi maps in number theory: a survey | |

Tue | Jun 29 | 17:00 | Filip Najman | $\mathbb Q$-curves over odd degree fields and sporadic points. | |

Tue | Jun 29 | 16:00 | Barinder Banwait | Explicit isogenies of prime degree over number fields | |

Tue | Jun 22 | 17:00 | Jeremy Rouse | $\ell$-adic images of Galois for elliptic curves over $\mathbb Q$ | |

Tue | Jun 22 | 16:00 | Pete Clark | The torsion subgroup of a CM elliptic curve over a number field | |

Tue | Jun 08 | 17:00 | Lori Watson | Odd degree isolated points on $X_1(N)$ with rational $j$-invariant | |

Tue | Jun 08 | 16:00 | Ekin Ozman | Quadratic points on modular curves and Fermat-type equations | |

Tue | May 18 | 17:00 | Damaris Schindler | Density of rational points near/on compact manifolds | |

Tue | May 11 | 17:00 | Yuri Tschinkel | Height zeta functions | |

Tue | May 04 | 17:00 | Will Sawin | The freeness alternative to thin sets in Manin's conjecture | |

Tue | Apr 20 | 17:00 | Marta Pieropan | The split torsor method for Manin’s conjecture | |

Tue | Apr 06 | 17:00 | Jordan Ellenberg | Counting points on (some) stacks: progress and problems | |

Tue | Mar 23 | 17:00 | Tony Várilly-Alvarado | Descent on K3 surfaces: Brauer group computations and challenges | |

Tue | Mar 09 | 18:00 | Francesca Balestrieri | The arithmetic of zero-cycles on products of K3 surfaces and Kummer varieties | |

Tue | Feb 23 | 18:00 | Bianca Viray | The Brauer group and the Brauer-Manin obstruction on K3 surfaces | |

Tue | Feb 09 | 18:00 | Alessandra Sarti | Old and new on the symmetry groups of K3 surfaces | |

Tue | Jan 26 | 18:00 | Edgar Costa | From counting points to rational curves on K3 surfaces | |

Tue | Dec 08 | 18:30 | Manami Roy | Challenges and usefulness of creating a database of groups in LMFDB | |

Tue | Dec 08 | 18:00 | Padma Srinivasan | Computing exceptional primes associated to Galois representations of abelian surfaces | |

Tue | Nov 24 | 18:30 | David Corwin | Kim's conjecture and effective Faltings | |

Tue | Nov 24 | 18:00 | Jeremy Booher | Can you hear the shape of a curve? | |

Tue | Nov 10 | 18:30 | Raymond van Bommel | Cluster pictures of hyperelliptic curves | |

Tue | Nov 10 | 18:00 | Nicholas Triantafillou | Computing isolated points on modular curves | |

Tue | Oct 27 | 17:00 | Arul Shankar | Ordering elliptic curves by conductor | |

Tue | Oct 13 | 17:00 | Wei Ho | Integral points on elliptic curves | |

Tue | Sep 29 | 17:00 | Alvaro Lozano-Robledo | The distribution of ranks of elliptic curves and the minimalist conjecture: reconciling conjectures and data | |

Tue | Sep 15 | 17:00 | Noam Elkies | Rank speculation | |

Tue | Sep 01 | 17:00 | Bjorn Poonen | Heuristics for the arithmetic of elliptic curves | |

Tue | Jul 07 | 17:00 | Nicole Looper | The ABC conjecture and arithmetic dynamics | |

Tue | Jun 23 | 17:00 | Joseph Silverman | Moduli problems and moduli spaces in algebraic dynamics | |

Tue | Jun 09 | 17:00 | Patrick Ingram | The critical height of an endomorphism of projective space | |

Tue | May 26 | 17:00 | Holly Krieger | Equidistribution and unlikely intersections in arithmetic dynamics | |

Tue | May 19 | 17:00 | Alina Bucur | Effective Sato-Tate and applications | |

Tue | May 05 | 17:00 | David Zywina | Computing Sato-Tate and monodromy groups | |

Tue | Apr 28 | 17:00 | Andrew Sutherland | Arithmetic L-functions and their Sato-Tate distributions | |

Wed | Apr 08 | 00:00 | Francesc Fité | Sato-Tate groups of abelian varieties of dimension up to 3 | |

Tue | Mar 24 | 17:00 | Kiran Kedlaya | The Sato-Tate conjecture and its generalizations | |

Tue | Mar 03 | 18:00 | David Zureick-Brown | Moduli spaces and arithmetic statistics | |

Tue | Feb 18 | 18:00 | Caroline Turnage-Butterbaugh | Moments of zeta and the vertical distribution of its zeros | |

Tue | Feb 04 | 18:00 | Melanie Matchett Wood | Conjectures for number field counting | |

Tue | Jan 21 | 18:00 | Lillian Pierce | On some questions in number theory, from the perspective of moments. | |