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Please note: The University of Waterloo is closed for all events until further notice.

Welcome to Combinatorics and Optimization

Tutte's Distinguished Lecture Series 

The very successful Tutte's 100th Distinguished Lecture Series has now completed. That success has led to a Tutte Distinguished Lecture once per term. The next lecture will happen in the Spring term.

*Recordings of occurred talks are all available on C&O's YouTube Channel   

Grad Studies: Fall 2020 applications now open

 New Deadline: February 1, '20

  1. Jan. 6, 2021David Gosset's paper published in Nature Physics
    Nature Physics

    C&O professor David Gosset has published a paper "Classical algorithms for quantum mean values" in Nature Physics.

  2. Nov. 13, 2020Collaborating to advance quantum technologies in Canada and the UK
    A quantum key distribution setup

    Earlier this year, Canada and the United Kingdom (UK) joined together to put a call out for proposals of collaborations between leading-edge scientists and potential innovative users from industry and government sectors to accelerate the development of quantum technologies.

  3. Nov. 12, 2020Unsolved puzzles
    Rose McCarty

    “When I was a kid, I always begged my parents to buy me those little Mind Benders puzzles,” remembered Rose McCarty. “My favorite puzzles were the ones that were so difficult that I wasn’t sure whether or not I could actually solve them. At Waterloo Math, I’m the one coming up with different puzzles to solve. I have an opportunity to tackle big, imprecise, unwieldly problems that determine what my field will look like in 20 years.”

Read all news
  1. Jan. 21, 2021Algebraic Combinatorics Seminar - Jason Bell

    Title: The growth of groups and algebras

    Speaker: Jason Bell
    Affiliation: University of Waterloo
    Zoom: Contact Karen Yeats


    We give an overview of the theory of growth functions for associative algebras and explain their significance when trying to understand algebras from a combinatorial point of view.  We then give a classification for which functions can occur as the growth function of a finitely generated associative algebra up to asymptotic equivalence. This is joint work with Efim Zelmanov.

  2. Jan. 22, 2021Tutte Colloquium - David Gosset

    Title: Fast simulation of planar Clifford circuits

    Speaker: David Gosset
    Aflliation: University of Waterloo
    Zoom: Please email Emma Watson


    Clifford circuits are a special family of quantum circuits that can be simulated on a classical computer in polynomial time using linear algebra. Recent work has shown that Clifford circuits composed of nearest-neighbor gates in planar geometries can solve certain linear algebra problems provably faster --as measured by circuit depth-- than classical computers.

  3. Jan. 29, 2021Tutte Colloquium - Michael Naehrig

    Title: Finding twin smooth integers for isogeny-based cryptography

    Speaker: Michael Naehrig
    Affliation: Microsoft Research
    Zoom: Please email Emma Watson


    Efficient and secure instantiations of cryptographic protocols require careful parameter selection. For the isogeny-based cryptographic protocol B-SIDH, a variant of the Supersingular-Isogeny Diffie Hellman (SIDH) key exchange, one needs to find two consecutive B-smooth integers of cryptographic size such that their sum is prime. The smaller the smoothness bound B is, the more efficient the protocol becomes. This talk discusses a sieving algorithm to find such twin smooth integers that uses solutions to the Prouhet-Tarry-Escott problem.

All upcoming events