Thu | Apr 18 | 19:00 | Leo Schaefer | Telling apart coarsifications of the integers | |

Thu | Apr 11 | 19:00 | Kevin O'Bryant | $B_h$-sets | |

Thu | Mar 28 | 19:00 | Mel Nathanson | Landau's converse to Holder's inequality, and other inequalities | |

Thu | Mar 14 | 19:00 | David and Gregory Chudnovsky | The telephone gossip problem: An hommage to Richard Bumby | |

Thu | Mar 07 | 20:00 | James Sellers | Surprising connections between integer partitions statistics: The crank, minimal excludant, and partition fixed points | |

Thu | Feb 29 | 20:00 | Senia Sheydvasse | Hidden structures in families of Ulam sequences | |

Thu | Feb 22 | 20:00 | Sayak Sengupta | Nilpotent and infinitely nilpotent integer sequences | |

Thu | Feb 15 | 20:00 | Florian Luca | Positive integers $k$ such that $3^k+1\equiv 0\pmod {3k+1}$ | |

Thu | Feb 08 | 20:00 | David Ross | Finitely many implies infinitely many, part 3: the nonstandard version | |

Thu | Feb 01 | 20:00 | Mel Nathanson | Finitely many implies infinitely many (for polynomials in infinitely many variables) | |

Thu | May 04 | 19:00 | Sayak Sengupta | Locally nilpotent polynomials over Z | |

Thu | Apr 27 | 19:00 | Jeffrey Shallit | Doing additive number theory with logic and automata | |

Thu | Apr 20 | 19:00 | Ashvin Rajan | A diophantine problem on products of three consecutive integers | |

Thu | Mar 30 | 19:00 | Federico Glaudo | Can you determine a set from its subset sums? | |

Thu | Mar 09 | 20:00 | Russell Jay Hendel | Recursions, closed forms, and characteristic polynomials of the circuit array | |

Thu | Mar 02 | 20:00 | Mel Nathanson | Sinkhorn limits for generalized doubly stochastic matrices and tensors | |

Thu | Feb 23 | 20:00 | Hung Viet Chu | Underapproximation by Egyptian fractions and the weak greedy algorithm | |

Thu | Feb 16 | 20:00 | Zhi-Wei Sun | New results on power residues modulo primes | |

Thu | Feb 09 | 20:00 | Alex Iosevich | Finite point configurations and complexity | |

Thu | Nov 17 | 20:00 | Mel Nathanson | Von Neumann's decomposition of intervals into countably infinitely many pairwise disjoint and congruent subsets | |

Thu | Oct 27 | 19:00 | Kevin O'Bryant | Finite Sidon sets | |

Thu | Sep 29 | 19:00 | Mel Nathanson | Poincare's Positivstellensatz | |

Thu | Aug 04 | 19:00 | Mel Nathanson | Patterns in the iteration of an arithmetic function | |

Thu | Jul 28 | 19:00 | Ali Khan | Optimal chaotic dynamics, the checkmap and the 2-sector RSS model | |

Thu | Jul 21 | 19:00 | Kevin O'Bryant | On the size of finite Sidon sets | |

Thu | Jul 14 | 19:00 | Mel Nathanson | A nonstandard proof of continuity of affine varieties | |

Thu | Jul 07 | 19:00 | David A. Ross | Yet another proof that the roots of a polynomial depend continuously on the coefficients | |

Thu | Jun 30 | 19:00 | Mel Nathanson | Continuity of the roots of a polynomial | |

Thu | Jun 23 | 19:00 | Mel Nathanson | Arithmetic functions and fixed points of powers of permutations | |

Thu | Jun 16 | 19:00 | Steven J. Miller | Benford's Law: Why the IRS might care about the 3x+1 problem and zeta(s) | |

Thu | May 12 | 19:00 | Mel Nathanson | van der Waerden's proof of Sturm's theorem | |

Thu | May 05 | 19:00 | Mel Nathanson | Polynomials and the Budan-Fourier theorem | |

Thu | Apr 28 | 19:00 | Mel Nathanson | Multiplicity interpolation and the theorems of Descartes and Budan-Fourier | |

Thu | Apr 14 | 19:00 | Giorgis Petridis | On a question of Yufei Zhao on the interface of combinatorial geometry | |

Thu | Apr 07 | 19:00 | Mel Nathanson | Exponential automorphisms and a problem of Mycielski | |

Thu | Mar 31 | 19:00 | Darij Grinberg | From the Vandermonde determinant to generalized factorials to greedoids and back | |

Thu | Mar 24 | 19:00 | Itay Londner | Tiling the integers with translates of one tile: the Coven-Meyerowitz tiling conditions | |

Thu | Mar 17 | 19:00 | David and Gregory Chudnovsky | How to break step | |

Thu | Mar 10 | 20:00 | Noah Kravitz | Multiplicity matrices and zeros of polynomials | |

Thu | Mar 03 | 20:00 | Mel Nathanson | Multiplicity matrices for polynomials | |

Thu | Feb 24 | 20:00 | Mel Nathanson | The Budan-Fourier theorem and multiplicity matrices of polynomials | |

Thu | Feb 17 | 20:00 | Josiah Sugarman | The spectrum of the quaquaversal operator is real | |

Thu | Feb 10 | 20:00 | Mel Nathanson | A chapter on the theory of equations: Descartes, Budan-Fourier, and Sturm | |

Thu | Feb 03 | 20:00 | Mel Nathanson | Best underapproximation by Egyptian fractions | |

Thu | Dec 16 | 20:00 | Guy Moshkovitz | An optimal inverse theorem for tensors over large fields II | |

Thu | Dec 09 | 20:00 | Yunping Jiang | Ergodic theory motivated by Sarnak's conjecture in number theory | |

Thu | Dec 02 | 20:00 | Alex Cohen | An optimal inverse theorem for tensors over large fields | |

Thu | Nov 11 | 20:00 | Laszlo Toth | Menon's identity: proofs, generalizations and analogs | |

Thu | Nov 04 | 19:00 | Ajmain Yamin | Complete regular dessins | |

Thu | Oct 28 | 19:00 | Mel Nathanson | Some results in elementary number theory | |

Thu | Oct 21 | 19:00 | Russell Jay Hendel | Limiting behavior of resistances in triangular graphs | |

Thu | Oct 14 | 19:00 | Noah Lebowitz-Lockard | Binary Egyptian fractions | |

Thu | Oct 07 | 19:00 | Mel Nathanson | Problems and results on Egyptian fractions | |

Thu | Sep 30 | 19:00 | Mel Nathanson | Egyptian fractions and the Muirhead-Rado inequality | |

Thu | Apr 08 | 19:00 | Mel Nathanson | Inverse problems for Sidon sets | |

Thu | Apr 01 | 19:00 | Tim Trudgian | Verifying the Riemann hypothesis to a new height | |

Thu | Mar 25 | 19:00 | Brandon Hanson | Sum-product and convexity | |

Thu | Mar 18 | 19:00 | Pierre Bienvenue | TBA | |

Thu | Mar 11 | 20:00 | Thai Hoang Le | TBA | |

Thu | Mar 04 | 20:00 | Guillermo Mantilla Soler | Arithmetic equivalence and classification of number fields via the integral trace | |

Thu | Feb 25 | 20:00 | Giorgis Petridis | Almost eventowns | |

Thu | Feb 18 | 20:00 | Steve Miller | How low can we go? Understanding zeros of L-functions near the central point | |

Thu | Feb 11 | 20:00 | Mel Nathanson | Sidon sets for linear forms | |

Thu | Feb 04 | 20:00 | Yoshiharu Kohayakawa | The number of Sidon sets and an extremal problem for random sets of integers | |

Thu | Jan 28 | 20:00 | Nathan Kaplan | Counting subrings of Z^n | |

Thu | Dec 17 | 20:00 | Arindam Biswas | Direct and inverse problems related to minimal complements | |

Thu | Dec 10 | 20:00 | Mel Nathanson | Multiplicative representations of integers and Ramsey's theorem | |

Thu | Dec 03 | 20:00 | Mel Nathanson | Sidon sets and perturbations | |

Thu | Nov 19 | 20:00 | Mel Nathanson | Minimal bases in additive number theory | |

Thu | Nov 12 | 20:00 | Emma Bailey | L-functions and random matrix theory | |

Thu | Nov 05 | 20:00 | Alex Iosevich | Discrete energy and applications to Erdos type problems | |

Thu | Oct 29 | 19:00 | Matthias Beck | The arithmetic of Coxeter permutahedra | |

Thu | Oct 29 | 19:00 | Matthias Beck | The arithmetic of Coxeter permutahedra | |

Thu | Oct 29 | 19:00 | Matthias Beck | The arithmetic of Coxeter permutahedra | |

Thu | Oct 29 | 19:00 | Matthias Beck | The arithmetic of Coxeter permutahedra | |

Thu | Oct 15 | 19:00 | Mel Nathanson | Dirichlet series of integers with missing digits | |

Thu | Oct 08 | 19:00 | Brian Hopkins | Rank, crank, and mex: New connections between partition statistics | |

Thu | Oct 01 | 19:00 | Mel Nathanson | Convergent and divergent series of integers with missing digits | |

Thu | Sep 24 | 19:00 | Harald Helfgott | Expansion in a prime divisibility graph | |

Thu | Sep 17 | 19:00 | Mel Nathanson | A curious convergent series of integers with missing digits | |

Thu | Sep 10 | 19:00 | Mel Nathanson | Chromatic sumsets | |

Thu | Sep 03 | 19:00 | Mel Nathanson | Sums of finite sets of integers, II | |

Fri | Jul 10 | 15:00 | Shalom Eliahou | Iterated sumsets and Hilbert functions | |

Tue | Feb 04 | 20:00 | Yoshiharu Kohayakawa | The number of Sidon sets and an application to an extremal problem for random sets of integers | |

Tue | Feb 04 | 20:00 | Yoshiharu Kohayakawa | The number of Sidon sets and an application to an extremal problem for random sets of integers | |

Tue | Feb 04 | 20:00 | Yoshiharu Kohayakawa | The number of Sidon sets and an application to an extremal problem for random sets of integers | |