Associate Professor in the
Discrete Mathematics Group
of the
Department of Mathematics and Statistics
at the University of Victoria.
Research
- Extremal combinatorics
- Combinatorial limits
- Quasirandomness
- Probability theory
- Ramsey theory
- Graph colouring
- Percolation
- Algorithms and complexity
- Descriptive combinatorics
Selected Publications
Full Publication List
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Showing 37 publications.
Submitted
Published, to Appear or Accepted
Teaching
I have taught undergraduate and graduate courses at the University of Victoria and the University of Warwick. My teaching includes logic, combinatorics, discrete mathematics, optimization, and undergraduate research projects.
I am not teaching any courses at the moment.
Full online courses
My course notes are available online in HTML format and include embedded lecture videos.
Course playlists
Recorded lecture playlists from courses taught at the University of Victoria and the University of Warwick.
Show past teaching
University of Victoria
First Term, 2025/2026
- MATH 122 — Logic and Foundations (Sections A03 and A04)
- Course Coordinator for MATH 122
- MATH 428 / 529 — Discrete Optimization
First Term, 2024/2025
- MATH 122 — Logic and Foundations (Sections A03 and A04)
- Course Coordinator for MATH 122 with Gary MacGillivray
- MATH 426 / 529 — Extremal Combinatorics
2023/2024
- MATH 498 — Seminar and Independent Project
- MATH 151 — Finite Mathematics (Sections A01 and A02)
- Course Coordinator for MATH 151
2022/2023
- MATH 122 — Logic and Foundations (Sections A03 and A04)
- MATH 492 / 529 — Topics in Applied Mathematics / Discrete Mathematics (Extremal Combinatorics)
2021/2022
- MATH 122 — Logic and Foundations (Sections A01 and A03)
- MATH 222 — Discrete and Combinatorial Mathematics
2020/2021
- MATH 492 / 529 — Extremal Combinatorics
- MATH 222 — Discrete and Combinatorial Mathematics
University of Warwick
Spring Term 2019
- MA252 — Combinatorial Optimisation
Welcome Week 2019
- MA9010 — Fundamental Tools (Linear Algebra and Differential Equations)
Welcome Week 2018
- MA9010 — Fundamental Tools (Linear Algebra and Differential Equations)
ETH Zürich
Spring Semester 2017
- Course Organizer for Analysis II for Mechanical Engineering and Material Science
Autumn Semester 2016
- Course Organizer for Analysis I for Mechanical Engineering and Material Science
University of Oxford
- Michaelmas Term 2015: Class Tutor for C8.3 Combinatorics
- Hilary Term 2015: Class Tutor for B8.5 Graph Theory
- Michaelmas Term 2014: Class Tutor for C8.3 Combinatorics
- Hilary Term 2014: Teaching Assistant for B8.5 Graph Theory
- Michaelmas Term 2013: Teaching Assistant for C8.3 Combinatorics
Thompson Rivers University
- 2009–2011: Mathematics Help Centre
Talks
Research talks playlist
Show full list of talks
- Less Than Half of All Oriented Paths Are Anti-Sidorenko. Invited seminar talk, 2026. Combinatorics Seminar, University College London.
- Less Than Half of All Oriented Paths Are Anti-Sidorenko. Invited conference talk, 2025. Winter Workshop in Combinatorics at LSE, London School of Economics & Political Science.
- Maximizing the number of alternating walks in an edge-coloured graph. Contributed conference session talk, 2025. CanaDAM 2025, Minisymposium on Interdisciplinary Extremal Combinatorics, Ottawa.
- Squaring the Circle with Simple Pieces. Invited colloquium talk, 2025. University of Chile, Department of Engineering Mathematics Colloquium, Santiago.
- An Approximate Counting Version of the Multidimensional Szemerédi Theorem. Contributed conference talk, 2024. Discrete Math Days 2024, Alcalá de Henares, Spain.
- Off-Diagonal Ramsey Multiplicity. Invited conference session talk, 2024. AMS Spring Western Sectional Meeting, Special Session on Extremal Combinatorics and Connections, San Francisco.
- Some Trees are Always More Plentiful than Others. Invited seminar talk, 2023. Probability and Dynamics Seminar, University of Victoria.
- Six Permutation Patterns Force Quasirandomness. Invited conference session talk, 2023. CanaDAM 2023, Minisymposium on Combinatorics and Algebra, Winnipeg.
- Squaring the Circle with Simple Pieces. Invited colloquium talk, 2023. Masaryk University Mathematics Colloquium, Brno.
- Minimizing copies of red copies of one graph and blue copies of another. Invited seminar talk, 2023. Atlantic Canada Graph Theory Seminar, online.
- Solving HUGE Problems Quickly. Invited outreach talk, 2022. IMAGINING UVic, University of Victoria.
- Common pairs of graphs. Invited conference talk, 2022. A Conference in Celebration of Bruce Reed’s Mathematical Career, University of Oxford.
- Squaring the Circle with Graph Theory. Contributed seminar talk, 2022. Discrete Math Seminar, University of Victoria.
- Forcing quasirandomness in permutations. Invited seminar talk, 2021. Algebraic Combinatorics Seminar, University of Waterloo.
- Forcing quasirandomness in permutations. Invited seminar talk, 2021. SCMS Combinatorics Seminar, Shanghai.
- Non-bipartite k-common graphs. Invited seminar talk, 2020. Extremal and Probabilistic Combinatorics Webinar, online.
- Cycles of length three and four in tournaments. Invited seminar talk, 2020. Combinatorial Theory Seminar, University of Oxford.
- Tarski's Circle Squaring Problem. Invited seminar talk, 2020. Math Club Seminar, Thompson Rivers University.
- Forcing Quasirandomness in Permutations. Invited conference session talk, 2019. 32nd Brazilian Mathematics Colloquium, Thematic Session on Combinatorics, Rio de Janeiro.
- Reconfiguring Graph Homomorphisms. Contributed conference talk, 2019. International Workshop on Combinatorial Reconfiguration (CoRe), Aussois.
- Cycles of length three and four in tournaments. Invited conference session talk, 2019. CanaDAM 2019, Minisymposium on Analytic and Probabilistic Techniques in Combinatorics, Vancouver.
- Cycles of length three and four in tournaments. Invited seminar talk, 2019. Joint DIMEA and FORMELA Seminar, Masaryk University, Brno.
- Cycles of length three and four in tournaments. Invited seminar talk, 2019. Combinatorics Seminar, University of Birmingham.
- Bootstrap percolation in high dimensions and related results. Invited seminar talk, 2019. Statistical Mechanics Seminar, University of Warwick.
- Cycles of length three and four in tournaments. Invited seminar talk, 2019. Mathematical Sciences Seminar, Birkbeck University of London.
- Supersaturation in Posets. Invited seminar talk, 2018. Discrete Mathematics and Optimization Seminar, McGill University.
- Supersaturation in Posets. Invited seminar talk, 2018. Combinatorics Study Group Seminar, Queen Mary University of London.
- Reconfiguring Graph Colourings and Homomorphisms. Invited conference session talk, 2018. SIAM Conference on Discrete Mathematics (SIAM DM18), Denver.
- Reconfiguring Graph Colourings and Homomorphisms. Invited seminar talk, 2018. Combinatorics Seminar, University of Bristol.
- How to Spread a Rumour in a High-Dimensional Network. Invited seminar talk, 2017. Mathematics Seminar, Thompson Rivers University.
- Bootstrap percolation in a random subhypergraph. Contributed conference session talk, 2017. Random Structures and Algorithms (RS&A), Gniezno.
- The Best Way to Spread a Rumour in a High-Dimensional Grid. Invited seminar talk, 2017. Combinatorial Group Seminar, Czech Academy of Science, Prague.
- The Best Way to Spread a Rumour in a High-Dimensional Grid. Invited seminar talk, 2017. Discrete Math Seminar, KAIST, Daejeon.
- Bootstrap percolation in a random subhypergraph. Invited conference talk, 2017. Structure in Graphs and Matroids (SiGMa).
- Antichains in Random Posets via Supersaturation and Containers. Invited seminar talk, 2017. Probability Seminar, Paul Sabatier University, Toulouse.
- Supersaturation in Posets and Applications Involving the Container Method. Invited seminar talk, 2016. Mittagsseminar, ETH Zurich.
- Reconfiguring Graph Homomorphisms and Colourings. Invited conference session talk, 2016. SIAM Conference on Discrete Mathematics (SIAM DM16), Atlanta.
- Extremal Bounds for Bootstrap Percolation in the Hypercube. Invited seminar talk, 2016. Combinatorics Seminar, University of Birmingham.
- Extremal Bounds for Bootstrap Percolation in the Hypercube. Invited seminar talk, 2016. Discrete Mathematics and Optimization Seminar, McGill University.
- Extremal Bounds for Bootstrap Percolation in the Hypercube. Invited seminar talk, 2015. Graph Theory Seminar, University of West Bohemia, Pilsen.
- Extremal Bounds for Bootstrap Percolation in the Hypercube. Invited seminar talk, 2015. Noon Lecture, Charles University, Prague.
- Choosability of Graphs With Bounded Order. Invited seminar talk, 2014. Combinatorics Seminar, University of Warwick.
- Choosability of Graphs With Bounded Order. Invited conference session talk, 2014. SIAM Conference on Discrete Mathematics (SIAM DM14), Minneapolis.
- List Colourings of Graphs on a Bounded Number of Vertices. Contributed conference session talk, 2014. Summit:240, Budapest.
- Choosability of Graphs With Bounded Order. Invited seminar talk, 2013. Mathematics Seminar, Thompson Rivers University.
- Choosability of Graphs With Bounded Order. Invited seminar talk, 2013. Noon Lecture, Charles University, Prague.
- Choosability of Graphs With Bounded Order. Invited seminar talk, 2013. Discrete Math Seminar, Simon Fraser University.
- Choosability of Graphs With Bounded Order. Contributed conference talk, 2013. Seventh Czech-Slovak International Symposium on Graph Theory, Combinatorics, Algorithms and Applications, Košice.
- Choosability of Graphs With Bounded Order. Invited seminar talk, 2012. Zhejiang Normal University, Jinhua.
- Choosability of Graphs With Bounded Order. Contributed conference talk, 2012. Thailand-Japan Joint Conference on Computational Geometry and Graphs (TJJCCGG), Bangkok.
- Choosability of Graphs With Bounded Order. Invited seminar talk, 2012. South China Normal University, Guangzhou.
- Choosability of Graphs With Bounded Order. Invited seminar talk, 2012. Kyoto University, Kyoto.
- Choosability of Graphs With Bounded Order. Invited seminar talk, 2012. Keio University, Yokohama.
- Choosability of Graphs With Bounded Order. Invited seminar talk, 2012. National Institute of Pure and Applied Mathematics (IMPA), Rio de Janeiro.
Students and Postdocs
I am always interested in supervising undergraduate, Master’s and PhD students, as well as postdoctoral researchers. My work focuses on problems in extremal and probabilistic combinatorics using methods from other areas such as analysis, algebra, computer science and optimization. No prior experience in these areas is required. If this sounds exciting to you, then do not hesitate to send me an e-mail at noelj@uvic.ca.
Current supervision
- Felix Christian Clemen . University of Victoria, since January 2025. Co-supervised with Natasha Morrison.
None currently. Please get in touch if you would like to do a PhD with me.
None currently. Please get in touch if you would like to do a Master’s with me.
None currently. Please get in touch if you would like to do undergraduate research with me.
None currently. Please get in touch if you would like to do an undergraduate thesis with me.
Show past supervision
- Joseph Hyde. University of Victoria, August 2022 to June 2024. Co-supervised with Natasha Morrison and Bruce Reed. Now a postdoc at King’s College London.
- Natalie Behague. University of Victoria, January 2022 to November 2023. Co-supervised with Natasha Morrison. Now an Assistant Professor at Dublin City University.
- Jae-baek Lee, The Ramsey Multiplicity Problem. University of Victoria, 2021–2025. Co-supervised with Gary MacGillivray. Now a postdoc at Yonsei University.
- Hao Chen, PhD student in the USTC Combinatorics Group. Visiting from November 2024 until November 2025.
- Lina Maria Simbaqueba Marin, Quasirandom forcing in Regular Tournaments. University of Victoria, 2023–2025. Now a PhD student at Leipzig University.
- Ashna Wright, Counting X-free Sets. University of Victoria, 2022–2024. Co-supervised with Natasha Morrison.
- Arjun Ranganathan, Inducing Graphs, Hypergraphs, and Tournaments. IISER Pune, 2023–2024. Co-supervised with Matthew Kwan. Now a PhD student at University College London.
- Abel Romer, Tight Bounds on 3-Neighbor Bootstrap Percolation. University of Victoria, 2020–2022. Co-supervised with Peter Dukes.
- Vincent Pfenninger, Graph Bootstrap Processes in Complete Bipartite Graphs. ETH Zürich, Spring Semester 2017. Co-supervised with Benny Sudakov. Now a postdoc at TU Graz.
- Stacey Sharfenberg. University of Victoria, Summer Research Student, June–August 2025.
- Christopher Turton. University of Victoria, NSERC USRA Summer Research Student, May–August 2024.
- Elena Moss. University of Victoria, NSERC USRA Summer Research Student, May–August 2023. Now a PhD student at the University of Glasgow.
- Gabriel Crudele, Six Permutation Patterns Force Quasirandomness. University of Victoria, Summer Research Student, May–August 2022. Co-supervised with Peter Dukes. Now a PhD student at McGill University.
- Elena Moss, Off-Diagonal Ramsey Multiplicity. University of Victoria, NSERC USRA Summer Research Student, May–August 2022. Now a PhD student at the University of Glasgow.
- Lina Maria Simbaqueba Marin, Sidorenko-Type Inequalityies for Pairs of Trees. University of Victoria, Mitacs Globalink Research Intern from Universidad Nacional de Colombia, May–August 2022. Now a PhD student at Leipzig University.
- Arjun Ranganathan, On the Running Time of Hypergraph Bootstrap Percolation. Research Intern from IISER Pune, June 2021–May 2022. Now a PhD student at University College London.
- Joe Wall, Saturation and Weak Saturation. University of Warwick, URSS Program, Summer 2018. Completed his PhD at Lancaster University in 2024.
- Tania Yorke. University of Victoria, MATH 498, 2025/2026. Soon to be a Master’s student at McGill University.
- Christopher Turton. University of Victoria, MATH 498, 2024/2025.
- Gabriel Crudele. University of Victoria, MATH 498, 2022/2023. Now a PhD student at McGill University.
- Adam Finchett, Graph Limits, Norms and Applications. 4th Year Essay, University of Warwick, 2019/2020. Now a Senior Data Scientist at Schroders Personal Wealth.
- Matt Pike, Problems in Bootstrap Percolation. 4th Year Essay, University of Warwick, 2018/2019.
- Rachel Hardgrave, Classical Theorems in List Colouring. 3rd Year Essay, University of Warwick, 2019/2020.
- Sophia Werner, Semi-Definite Programming. 3rd Year Essay, University of Warwick, 2018/2019.
- Stefan Lochau, Entropy and Linear Programming Methods for Counting Matchings and Independent Sets in Graphs. Bachelor Thesis, ETH Zürich, Autumn Semester 2016. Co-supervised with Benny Sudakov. Now a software engineer at Cudos AG.
Applying to UVic for Master’s or PhD
If you would like to apply to be a graduate student at UVic, then please take careful note of the deadlines. Applications sometimes take weeks or months to go through the internal UVic system before professors can see them, and some arrive so late that faculty do not see them until after decisions have been made. This is especially common for international applicants.
I therefore strongly recommend applying as early as possible — ideally weeks or even months before the deadline. After you submit your application through the UVic system, I also recommend emailing it directly to any potential supervisor(s). That is the only reliable way to ensure they have actually seen it.
All PhD students in the department must pass candidacy before formally beginning research. However, if you do a PhD with me, we will start doing research as soon as you are ready, which may be well before you have completed candidacy. I will do my best to help design a candidacy plan that supports your longer-term goals.
Service and Outreach
My service includes editorial work, conference organization, departmental committees, seminar organization, and public-facing mathematical outreach.
-
Executive Committee Chair for the
Canadian Discrete and Algorithmic Mathematics Conference (CanaDAM 2027)
.
- Associate Editor for the SIAM Journal on Discrete Mathematics (2026–current).
- I maintain the CanaDAM Discrete Mathematics Conference Directory.
-
Program Committee member for
ASIACOMB 2026.
- Member of the PIMS Network-Wide Courses Committee (2026–current).
-
Program Committee member for
CanaDAM 2025
.
-
Executive Committee member for
CanaDAM 2025
.
-
Webmaster for
CanaDAM 2025
.
- Organizer of the minisymposium Interdisciplinary Extremal Combinatorics at CanaDAM 2025 .
- Organizer of the minisymposium Extremal Combinatorics and Beyond at CanaDAM 2023 .
-
Executive Committee member for
CanaDAM 2023
.
- Program Committee member for SODA 2022.
- Co-organizer of a minisymposium on Bootstrap Percolation at CanaDAM 2019 with Natasha Morrison.
- Program Committee member for LAGOS 2019.
- I am an active contributor of AMS Mathematical Reviews.
- Co-organizer of the Discrete Math Seminar at UVic with Natasha Morrison (2022-current).
- Graduate Committee (July 2024–June 2025; July 2025–June 2026).
- Website and Social Media Committee (October 2025–June 2026).
- Appointments and Reappointments Committee (July 2023–June 2024).
- Contests and Awards Committee (July 2022–June 2023).
- Organized Mathematics and Statistics Colloquia:
- In November 2022, I gave the outreach talk Solving HUGE Problems Quickly in the IMAGINING UVic seminar series.
-
In 2022, Donga Science (Korea) made a comic for children based on my circle-squaring paper with Oleg Pikhurko and András Máthé.
A comic adaptation of the circle-squaring result (Donga Science, Korea). - In April 2024, two of my graduate students and I recorded an overview of the Szemerédi Regularity Lemma.
Advice for Early Career Researchers
Show advice and links
General Advice
- Gian-Carlo Rota — Ten Lessons I Wish I Had Been Taught
- Advice to a Young Mathematician with contributions from Sir Michael Atiyah, Béla Bollobás, Alain Connes, Dusa McDuff, and Peter Sarnak.
- Terence Tao — Career Advice
- Fan Chung — advice for grad students
- William P. Thurston — On Proof and Progress in Mathematics
- Guidance for graduate students, new PhDs, and professionals at all levels from the Committee on the Status of Women in Computing Research
- Sarah Billey’s advice page
- Specific information for UVic math graduate students can be found on the Guidelines page on the UVic Math & Stats Department site. In particular, I suggest reading the Graduate Handbook .
Writing and Presenting Mathematics
- Paul Halmos — How to Write Mathematics and How to Talk Mathematics
- Donald E. Knuth, Tracy Larrabee and Paul M. Roberts — Mathematical Writing
- Keith Conrad — Advice on mathematical writing
- Stephen G. Krantz — How to Write Your First Paper
- John Etnyre — The Art of Writing Introductions
- Francis Su — Guidelines for good mathematical writing
- Agelos Georgakopoulos — How to give a good talk
- Bruce C. Berndt — How to write mathematical papers
- Chris Godsil — Advice on how to write well and give good talks
- Doug West — The Grammar According to West
- Terence Tao — On Writing
- Tim Gowers — How mathematics should be taught to non-mathematicians
A popular way of presenting scientific results is through a poster session. Unfortunately, most posters are impossible to learn anything from. If you would like your poster to not suck, I recommend Mike Morrison’s two videos and the following poster templates.
Other Advice
- Familiarize yourself with the types of questions that one is asked during a PhD, postdoc or faculty position interview and practice answering them. I have started to compile a list of possible interview questions for jobs in mathematics that you may find helpful.
- I recommend all students and early career researchers in discrete mathematics subscribe to the Discrete Mathematics and Algorithms Network (DMANET) mailing list .
- I also recommend subscribing to the math.CO arXiv mailing list to keep yourself up to date on the latest developments in the area.
- It is important for early career researchers to have an academic webpage. This still applies if you have only a few papers, or none at all. It is crucial that people can easily find out (a) who you are, (b) where you are, (c) what you’re interested in, and (d) what you’ve done. You do not want to miss out on opportunities just because people cannot find you.
- Go to conferences and give talks. It is a great way to meet new people in the area, get exposure to new ideas and disseminate your work. Doug West maintains a comprehensive list of conferences in combinatorics. See also the CanaDAM Discrete Mathematics Conference Directory.
Equity, Diversity and Inclusion
Members of underrepresented groups face special obstacles in the mathematical sciences, and in academia more broadly. Mathematics, and academia as a whole, is still in the process of understanding and recognizing these challenges and learning how to overcome them, but some great progress is being made by some amazing people. For more information:
- The Math is For All project created by Annie Raymond; see also the Instagram.
- Lathisms: Latinxs and Hispanics in the Mathematical Sciences
- Indigenous Mathematicians
- Mathematically Gifted and Black
- National Association of Mathematicians
- Mathematicians of the African Diaspora
- Meet a Mathematician
- Association for Women in Mathematics UVic Student Chapter
- UVic’s Policy on Human Rights, Equity and Fairness
- Math & Statistics Equity, Diversity and Inclusion (MSEDI) committee at UVic
- NSERC’s guide for applicants on considering equity, diversity and inclusion
- LMS advice on diversity at conferences and seminars
Here is the UVic Territory Acknowledgement written in LaTeX. This was copied from Laura Cowen’s webpage and slightly edited.
\usepackage{tipa}
We acknowledge and respect the L\textschwa\'{k}\textsuperscript{w}\textschwa\textipa{\ng}\textschwa n (Songhees and X\textsuperscript{w}seps\textschwa m/Esquimalt) Peoples on whose territory the university stands, and the L\textschwa\'{k}\textsuperscript{w}\textschwa\textipa{\ng}\textschwa n and \underline{W}S\'ANE\'C Peoples whose historical relationships with the land continue to this day. Funding and Jobs
Show funding and job resources
Undergraduate Research
- NSERC Undergraduate Student Research Awards (USRA) ; see also the UVic Math & Stats undergraduate research page .
- UVic Science Undergraduate Research Awards (SURA)
- UVic Jamie Cassels Undergraduate Research Awards (JCURA)
- UVic Valerie Kuehne Undergraduate Research Awards (VKURA)
- Mitacs Globalink Research Awards provide funding for senior undergraduates, graduate students and postdocs to undertake a 12–24 week research project in another country.
Undergraduate Travel Funding
International Undergraduate Research Internships
Undergraduate Activities
Graduate Student Funding (Master’s and PhD)
- NSERC Postgraduate Scholarships and Canada Graduate Scholarships (PGS / CGS M and D) (Canadian citizens and permanent residents only)
- NSERC Vanier Canada Graduate Scholarships
- Eiffel Scholarship
- Jane Street Graduate Research Fellowships
- More information about funding opportunities for grad students can be found on the UVic Math & Stats Financial Support page .
Graduate Student Travel Funding
- Faculty of Graduate Studies travel grants at UVic
- CUPE 4163 conference funding
- Mitacs Globalink Research Awards
- Many conferences offer travel funding for students. For students in combinatorics, the SIAM Discrete Math conference (held in even years) and the CanaDAM conference (held in odd years) usually do. If you want to get travel funding, then you should probably plan to present a talk.
Postdoctoral Fellowships
- PIMS Postdoctoral Fellowships
- CRM Postdoctoral Fellowships
- Fields Research Fellowships
- NSERC Postdoctoral Fellowships
- NSERC Banting Postdoctoral Fellowships
- PIMS/CNRS Postdoctoral Fellowships
- Marie Skłodowska-Curie Postdoctoral Fellowships
- Leverhulme Early Career Fellowships
- Research Fellowships from the Royal Commission for the Exhibition of 1851
- Royal Society University Research Fellowships
- Heilbronn Research Fellowships
- Humboldt Research Fellowships
- Warwick Zeeman Lecturer
- Junior Research Fellowships at Oxford and Cambridge colleges
- Imperial Research Fellowships
- Dirichlet Postdoctoral Fellowships
- Dorothy Hodgkin Fellowships
- Czech Science Foundation Postdoc Individual Fellowships
Job Boards
Postdoc Travel Funding
- Mitacs Globalink Research Awards
- Many conferences offer travel funding for students and postdocs. In combinatorics, the SIAM Discrete Math conference and the CanaDAM conference are especially relevant.
Contact
Office
David Turpin Building A435
E-mail
noelj@uvic.ca