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Welcome to Combinatorics and Optimization

Spring 2018 Undergraduate Research Assistantship Program (URA)Applications for the Spring 2018 program are now closed.

Tutte's 100th Distinguished Lecture Series 

University of Waterloo, May 5 - August 18, '17      

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

Grad Studies: Fall 2018 applications now open

 New Deadline: February 9, '18

  1. June 20, 2018Luke Postle wins 2018 Faculty of Mathematics Golden Jubilee Research Excellence AwardLuke Postle teaching a class

    Luke Postle has received a 2018 Faculty of Mathematics Golden Jubilee Research Excellence Award. The $2,500 award, which is conferred to early or mid-career faculty members who have made outstanding research contributions, was established in 2017 to mark the 50th anniversary of the Faculty of Mathematics. 

  2. June 15, 2018C&O graduates in Spring 2018

    Twelve C&O students received their graduate degrees at the convocation ceremonies on June 15, 2018.

  3. May 14, 2018Zhihan Gao's TSP paper featured as the SIGEST article in SIAM Review

    Zhihan Gao's paper "On the metric s-t path traveling salesman problem" has been selected as the SIGEST article for the latest issue of SIAM Review.

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  1. June 28, 2018Algebraic Combinatorics Seminar

    Title: A single pass bijection between certain quarter plane lattice walks and certain Motzkin-like paths.

    Speaker: Nick Olson-Harris
    Affiliation: University of Waterloo
    Room: MC 6486

    Abstract: A p-tandem quarter plane walk is a walk starting at the origin and remaining in the first quadrant using the steps (1,-1) and (-n, p-n) for n between 0 and p.

  2. June 28, 2018Graphs and Matroids Seminar

    Title: Stretching drawings of graphs

    Speaker: Alan Arroyo
    Affiliation: University of Waterloo
    Room: MC 5479

    Abstract: Given a drawing D of a graph (where vertices are dots in the plane and edges are arbitrary curves connecting some pairs of dots),

  3. June 29, 2018Tutte Colloquium - Karen Yeats

    Title: The c2 invariant at p=2 by counting edge bipartitions

    Speaker: Karen Yeats
    Affiliation: University of Waterloo
    Room: MC 5501


    Since no one provided a visitor or volunteered for this week, I will explain how to prove a special case of a conjecture about the c2 invariant. 

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