Mdtop March 2014

mdtop@mathdept.okstate.edu

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7 discussions

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No Topology Seminar this week
by Odonnol, Danielle Odonnol 26 Mar '14

26 Mar '14

Hello Topologists! I hope you had a good break! We will not have a seminar this week.

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Hempel/3-Manifolds
by Pavelescu, Andrei 24 Mar '14

24 Mar '14

Hello Topologists and Friends Thereof, I need to take a look at the following book: “3-Manifolds” by John Hempel. It is checked out of the library. I wonder if I could borrow it for a day. Best, Andrei Pavelescu

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Hempel/3-Manifolds
by Pavelescu, Andrei 24 Mar '14

24 Mar '14

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ride to Redbud
by Sean Bowman 12 Mar '14

12 Mar '14

Dear friends, I am driving to the Redbud conference the evening of April 11 and returning sometime after the talks are finished on April 13th. Note that I will not be arriving in time for the talks on Friday afternoon. I have an extra two spots in my car, let me know if you'd like a ride! best regards, Sean

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Topology Seminar 3:30pm Thursday
by Henry Segerman 12 Mar '14

12 Mar '14

Dear topologists and friends of topology, Ahmad Issa (University of Texas at Austin) will give the topology seminar at 3:30pm on Thursday. Title: Non-geometric veering triangulations Abstract: In 2010 Ian Agol introduced a class of "veering" ideal triangulations for mapping tori of pseudo-Anosov homeomorphisms of surfaces punctured along the singular points of the invariant foliations. These triangulations have very special combinatorial properties, and Agol asked if these are "geometric", i.e. realised in the complete hyperbolic metric with all tetrahedra positively oriented. In this talk I'll describe Agol's elegant construction of these triangulations using train tracks on surfaces, and give the first examples of non-geometric veering triangulations.

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Topology Seminar Thursday
by Odonnol, Danielle Odonnol 05 Mar '14

05 Mar '14

Hello Topologist and Friends of Topology, We are please to have Topology Seminar this Thursday (MSCS 514 at 3:30) given by Maggy Tomova form The University of Iowa. Title: Obtaining topological information from knot diagrams Abstract: Knots and links are most easily visualized via a projection diagram. However, obtaining topological and geometric information from such a presentation has proven to be difficult. In this talk I will discuss conditions on the diagram that allow us to show that any closed essential surface in the knot complement has high genus. This is joint work with Ryan Blair and David Futer.

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Redbud spring conference
by Henry Segerman 03 Mar '14

03 Mar '14

Dear topologists and friends of topology, The Redbud Topology conference will be April 11-13 at the University of Oklahoma. http://www.math.ou.edu/redbud/ It's time to register for the conference and make hotel arrangements. The plan is for partial support for graduate students and junior researchers. The deadline for full support consideration is March 14th. The budget is going to be tight, so we are asking graduate students to share hotel rooms, and we should of course carpool if possible. Note that the Friday afternoon talks (April 11) are meant for a graduate student audience, so we hope students will be able to come for that. These talks will begin at 2:30 pm, so it should be possible to drive over that day. If you are planning to attend, please let me know so we can plan carpooling etc. Henry

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Mdtop March 2014