The University of Colorado *Center for Number Theory* has interests spanning number theory, from analytic to algebraic. There is a focus on arithmetic geometry, including arithmetic dynamics, elliptic curves and higher genus curves. Another theme is cryptography and coding theory, including elliptic curve cryptography and lattice-based cryptography. On the analytic side, there is a focus on automorphic forms, analytic number theory and harmonic analysis. The group also has a long tradition in Diophantine approximation.

#### Seminars

#### Faculty

Su-ion Ih |
arithmetic geometry, algebraic geometry |

David Grant |
arithmetic geometry, space-time coding |

Eric Stade |
number theory, special functions |

Katherine Stange |
arithmetic geometry, including elliptic curves and cryptographic applications, as well as Kleinian groups, Diophantine approximation, and lattice-based cryptography |

Robert Tubbs |
transcendental number theory, mathematics and the humanities, mathematics education |

#### Postdoctoral researchers

#### Emeriti