Dan Christensen

Dan Christensen

I am a Professor in the Department of Mathematics at The University of Western Ontario in London, Ontario, with a cross appointment to the Department of Applied Mathematics, and an affiliation with the Perimeter Institute for Theoretical Physics. The Departments of Mathematics and Applied Mathematics are part of the School of Mathematical and Statistical Sciences.

I am the Graduate Chair for the Department of Mathematics, and am a Managing Editor of Homology, Homotopy and Applications.

My papers, preprints and talks.

Here are some photos from trips I have been on; I also have a Google+ page.

Contact information is below.


My research interests include algebraic topology (especially stable homotopy theory and model categories), homotopy type theory and univalent foundations, derived categories, modular representation theory, mathematical physics (quantum gravity), algebraic and scientific computation, and category theory (especially higher categories).

My papers, preprints and talks.

Research group

Dan Christensen (faculty)
James Richardson (Ph.D. student, Sept 2015 until present)
Marco Vergura (Ph.D. student, Sept 2015 until present)
Luis Scoccola (Ph.D. student, Sept 2016 until present)
    tet plot What's this?

This semester, Chris Kapulkin and I are running a learning seminar on localization and the Homotopy Type Theory Electronic Seminar Talks.

I co-organized a Mathematics Research Communities event on Homotopy Type Theory, from June 4 to 10, 2017 in Snowbird, Utah.

Chris Kapulkin, Rick Jardine and I organized a Workshop on Homotopy Type Theory and Univalent Foundations of Mathematics at The Fields Institute in May, 2016. I also co-organized a Workshop on Triangulated Categories at the Banff International Research Station in June, 2016.

I encourage eligible people apply for an NSERC Postdoctoral Fellowship, an NSERC Banting Postdoctoral Fellowship (domestic and international applicants eligible), any other NSERC postdoc, an NSF PDF (e.g. a International Research Fellowship Program postdoc, or a Mathematical Sciences Postdoctoral Research Fellowships or a Distinguished International Postdoctoral Research Fellowship), or similar to be held at Western.

The Canadian Government has many scholarships and fellowships that are available for people from many different countries.

Recent Teaching

Summer 2018 Representation Theory, Math 9140a.
Winter 2018 Algebraic Topology, Math 4152b/9052b.
Summer 2017 Mathematical Computation, Math 9171a.
Full list of courses taught at UWO.


The Hopf archive of research papers in topology. The Front for the xxx Mathematics Archive. Direct to the xxx archive. The K-theory archive. MathSciNet, which contains searchable reviews of almost all mathematics publications and many physics publications as well.

SAGE is a wonderful program which interfaces to Magma, Maple, Mathematica and MATLAB, and the free programs Axiom, GAP, GP/PARI, Macaulay2, Maxima, Octave, and Singular. It is freely available and open source.

If you find math fun, consider becoming a math major. Talk to me or anyone else in the department if you're curious.

How to get to London, Ontario, and where to stay.

polynomial roots
I've produced some beautiful plots of roots of polynomials, some of which appeared in a Scientific American article.

Contact information
Dan Christensen

Dan Christensen
Department of Mathematics
The University of Western Ontario
London, Ontario N6A 5B7

Office phone: (519) 661-2111 x86530
Fax: (519) 661-3610 (include my full name)

E-mail: j d c at u w o . c a     


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