Henry Segerman
Department of Mathematics
Oklahoma State University
Stillwater, OK 74078, USA

Office: 504 Mathematical Sciences
Phone: (405) 744-7746
Email: segerman (at) math (dot) okstate (dot) edu

Curriculum Vitae


Coming up: April 3-5, the Spring 2015 Redbud Geometry / Topology Conference, to be held at OSU.

This semester I am teaching Math 6323: Algebraic Topology.

In fall 2014 I taught Math 2163: Calculus III, Section 012, and
Math 5313: Geometric Topology.

In spring 2014 I taught Math 2163: Calculus III, Section 701 (Hono(u)rs).

In fall 2013 I taught Math 2153: Calculus II, Sections 005 and 006.

Papers and preprints

Geometry and Topology

  1. Non-geometric veering triangulations, with Craig D. Hodgson and Ahmad Issa, 34 pages, 24 figures, arXiv:1406.6439 [math.GT] (2013).

  2. 1-efficient triangulations and the index of a cusped hyperbolic 3-manifold, with Stavros Garoufalidis, Craig D. Hodgson and J. Hyam Rubinstein, 60 pages, 27 figures, arXiv:1303.5278 [math.GT] (2013).

  3. Triangulations of hyperbolic 3-manifolds admitting strict angle structures, with Craig D. Hodgson and J. Hyam Rubinstein, 22 pages, 9 figures, Journal of Topology 5 (2012), no.5, pp. 887-908.

  4. A generalisation of the deformation variety, 66 pages, 26 figures, Algebraic and Geometric Topology 12 (2012), no. 4, pp. 2179-2244.

  5. Pseudo-developing maps for ideal triangulations I: Essential edges and generalised hyperbolic gluing equations, with Stephan Tillmann, 18 pages, 8 figures, Topology and Geometry in Dimension Three: Triangulations, Invariants, and Geometric Structures (Proceedings of the Jacofest conference), AMS Contemporary Mathematics 560 (2011), pp. 85-102.

  6. Veering triangulations admit strict angle structures, with Craig D. Hodgson, J. Hyam Rubinstein and Stephan Tillmann, 15 pages, 9 figures, Geometry & Topology 15 (2011), pp. 2073-2089.

  7. Incompressible surfaces in handlebodies and boundary compressible 3-manifolds, with J. Nogueira, 31 pages, 14 figures, Topology and its Applications 158 (2011), no. 4, pp. 551-571.

  8. Detection of incompressible surfaces in hyperbolic punctured torus bundles, 52 pages, 25 figures, Geometriae Dedicata 150 (2011), no. 1, pp. 181-232.

  9. On spun-normal and twisted squares surfaces, 15 pages, 13 figures, Proc. Amer. Math. Soc. 137 (2009), pp. 4259-4273.

Mathematical Art and Recreational Mathematics

  1. Puzzling the 120-cell, with Saul Schleimer, 23 pages, many figures.

  2. The Quaternion Group as a Symmetry Group, with Vi Hart, 8 pages, 8 figures, Proceedings of Bridges 2014: Mathematics, Music, Art, Architecture, Culture, pages 143-150.

  3. Triple gear, with Saul Schleimer, 8 pages, 19 figures, Proceedings of Bridges 2013: Mathematics, Music, Art, Architecture, Culture, pages 353-360.

  4. Developing fractal curves, with Geoffrey Irving, Journal of Mathematics and the Arts 7 (2013), no. 3-4, pages 103-121. 21 pages, 22 figures.

  5. How to print a hypercube, 5 pages, 9 figures, Math Horizons 20 (Feb 2013), issue 3, pages 5-9.

  6. 3D printing for mathematical visualisation, 7 pages, 9 figures, Math. Intell. 34 (2012), no. 4, pages 56-62. The final publication is available at www.springerlink.com, at this page.

  7. Sculptures in S3, with Saul Schleimer, 8 pages, 9 figures, Proceedings of Bridges 2012: Mathematics, Music, Art, Architecture, Culture, pages 103-110.

  8. Recent 3D printed sculptures, 10 pages, 11 figures, Hyperseeing 2011 Fall/Winter, 5 pages, 7 figures.

  9. Fractal graphs by iterated substitution, 24 pages, 20 figures, Journal of Mathematics and the Arts (© Taylor and Francis, available online at: http://www.tandfonline.com), 5 (2011), no. 2, pages 51-70.

  10. The Sunflower Spiral and the Fibonacci metric, 4 pages, 4 figures, Proceedings of Bridges 2010: Mathematics, Music, Art, Architecture, Culture, pages 483-486.

  11. Autologlyphs, with P.-O. Dehaye, Math. Intell. 26 (2004), no. 2, pages 37-39, and cover art.

  12. 100 prisoners and a lightbulb, with P.-O. Dehaye and D. Ford, Math. Intell. 25 (2003), no. 4, pages. 53-61.

My Ph.D. thesis is available here (submitted May 2007). It bears a striking resemblance to the paper "Detection of incompressible surfaces in hyperbolic punctured torus bundles".

I designed the cover art and all illustrations for the book Blast into Math! by my friend Julie Rowlett, published January 2013.


Slides and notes from some of my talks (see my CV for more):

On 23rd February 2008 I gave a talk to the University of Texas Mathematics Department's Saturday Morning Math Group (for an audience of around 200 high school students from nearby schools in the area), you can see a video of it here (scroll down to my talk).

Art Exhibitions


15 Feb 2015: I gave a talk on visualising four-dimensional objects at the annual meeting of the American Association for the Advancement of Science. Science, New Scientist and NBC News wrote blog posts about it.

30 Oct 2014: Alex Bellos wrote a blog post for The Guardian entitled "Pumpkin geometry: stunning shadow sculptures that illuminate an ancient mathematical technique", on stereographic projection sculptures by Saul Schleimer and me.

19 May 2014: Evelyn Lamb wrote a blog post for Scientific American on "More fun than a hypercube of monkeys", a sculpture by my brother Will and me, inspired by a question of Vi Hart.

15 March 2013: Megan Gambino wrote a blog post for Smithsonian magazine on my 3D printed sculpture.

31 October 2012: Evelyn Lamb wrote a blog post for Scientific American on the "30-cell puzzle", a 3D printed puzzle by Saul Schleimer and me based on the 120-cell, one of the regular 4-dimensional polytopes.

23 August 2012: My sculpture "Dual Half 120- and 600-Cells" (joint work with Saul Schleimer) won the "Best Use of Mathematics" prize (one of four prizes awarded) at the Bridges conference 2012. It was featured in a slide show on the Scientific American website.

January 2012: I was interviewed for an article in the "Voice", a publication put out by the University of Melbourne, on "The language and art of maths". Here is the article. The online version of the article is missing the image (shown here) that went with the article. Alternatively, here is a pdf of the whole publication, which includes the article (on page 4) together with the photograph.

6 December 2011: I was interviewed by BBC Radio 5 about mathematical art and 3D printing. Here is the blogpost for the podcast. Here is the direct link to the mp3.

February 2008: I was interviewed on She Blinded Me With Science!, a show on the student radio station KVRX, talking about topology and juggling. You can listen to the interview here.


My Hilbert curve 3d print is available at vismath.eu, a German mathematics website and shop (English language version).

Images of Dehn surgery space

Go here for my personal website. Particularly math(s) related things: 3D printed sculpture, Autologlyphs, Escher's Printgallery at Stanford, Book Covers and Posters, T-shirt designs.

For keeping track of your and your friends' (lack of) mathematical progress: Ways to Go Wrong Tally Sheet.

My old University of Melbourne math website is here. My old University of Texas math website is here. My old Stanford math website is here.


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