Welcome to Combinatorics and Optimization

Winter 2020 Undergraduate Research Assistantship (URA) Opportunities.

Spring 2019 Undergraduate Research Assistantship Program (URA)Applications for the Spring 2019 program are now closed.

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 2019 applications now open

 New Deadline: February 1, '19

  1. July 14, 2019Crypto 2019 Best Young Researcher Award
    IACR logo

    C&O graduate students Samuel Jaques and John Schanck have won the Best Young Researcher Paper Award at Crypto 2019, the 39th Annual International Cryptology Symposium. Their paper, Quantum cryptanalysis in the RAM model: Claw-finding attacks on SIKE, will be presented on August 20 in Santa Barbara.

  2. July 9, 2019Chaitanya Swamy appointed Chair of C&O
    Chaitanya Swamy

    Professor Chaitanya Swamy has been appointed to a ten-month term as chair of the Department of Combinatorics and Optimization. His term begins on September 1, 2019.

  3. June 26, 2019SAC 2019 (August 12-16, 2019)
    SAC 2019

    The Selected Areas in Cryptography (SAC) conference will be held at the University of Waterloo from August 14-16, 2019. The conference co-chairs are Kenneth Paterson (University of London/ETH Zurich) and C&O professor Douglas Stebila

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  1. July 16, 2019Algebraic Combinatorics Seminar - Stephen Melczer

    Title: From Combinatorics to Computer Algebra and Morse Theory - Making Sense of Multivariate Asymptotics

    Speaker: Stephen Melczer
    Affiliation: University of Pennsylvania
    Room: MC 5479


    The  asymptotic study  of  multivariate  generating  functions comprises  the  domain  of  Analytic Combinatorics  in Several Variables (ACSV).

  2. July 18, 2019Algebraic Combinatorics Seminar - Lucia Rotheray

    Title: Incidence bialgebras of monoidal categories

    Speaker: Lucia Rotheray
    Affiliation: Technische Universität Dresden
    Room: MC 5417


    We begin with Joni and Rota's definition of the incidence coalgebra of a category or partially ordered set and then discuss some cases where a monoidal product on a category turns this coalgebra into a bialgebra.

  3. July 19, 2019Combinatorial Optimization Reading Group - Sharat Ibrahimpur

    Title: Stable Flows

    Speaker: Sharat Ibrahimpur
    Affiliation: University of Waterloo
    Room: MC 5479


    We describe a flow model that generalizes ordinary network flows the same way as stable matchings generalize the bipartite matching problem.

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