Welcome to Combinatorics and Optimization

The C&O department has 33 faculty members and 60 graduate students. We are intensely research oriented and hold a strong international reputation in each of our six major areas:

Read more about the department's research to learn of our contributions to the world of mathematics!


Spring 2022 Undergraduate Research Assistantship Program: applications open!

We are now accepting applications for those who wish to join the Department of Combinatorics and Optimization as an Undergraduate Research Assistant (URA) for the Spring 2022 term. As a URA you will assist a researching faculty member of C&O for 16 weeks of full-time work; an excellent opportunity to learn about academic research and its applications in life! This program can be used as a co-op term or a summer job, both allow you futher opportunity to apply to recieve an NSERC Undergraduate Student Research Award or a Mathematics Undergraduate Research Award (if eligible).

Applications are open until December and are open to all eligible students! Find more information about the program from our URA page; included are details on eligibility, program length and expectations, as well as some FAQs.

Contact Chloe Potovszky with any questions.

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   


  1. Oct. 13, 2021Fall 2021 convocation
    Convocation Fall 2021

    Five Ph.D. and four M.Math. C&O students will receive their degrees at the Fall 2021 convocation on October 22.

  2. Oct. 7, 2021C&O M.Math. student wins a gold medal at ICPC 2021
    Dmitry Sayutin

    Dmitry Sayutin's team at the ITMO University in St. Petersburg won a gold medal at ICPC 2021.

  3. Aug. 23, 2021Martin Pei named among winners of Faculty of Mathematics 2021 Awards for Distinction in Teaching
    Martin Pei

    Martin Pei from the Department of Combinatorics and Optimization has been named among the winners of this year’s Awards for Distinction in Teaching from the Faculty of Mathematics.

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