Mdtop

mdtop@mathdept.okstate.edu

247 discussions

Topology seminar tomorrow
by Jesse Johnson 23 Jan '13

23 Jan '13

Dear Topologists and Friends of Topology, Trent will give the first seminar talk of the semester tomorrow (Thursday) at 3:30 in MSCS 514. Title and abstract are below: Title: Lower bounds on the Heegaard genus of amalgamated $3$-manifolds. Abstract: I describe some new results of mine which place lower bounds on the Heegaard genus of a $3$-manifold which is obtained by gluing two $3$-manifolds together along torus boundary components. As an application, I also put a lower bound on tunnel number degeneration under connected sum of knots. These kinds of problem have been worked on for quite some time, but as far as I know my techniques are new and the results are of a different flavor.

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Fwd: 2013 Spring Redbud Geometry and Topology Conference
by Jesse Johnson 22 Jan '13

22 Jan '13

Below is the announcement for the Spring Redbud conference, which will be March 8-10, 2013 at U. Arkansas. The theme is contact topology and Elena will be one of the speakers. When the date gets closer, we can start coordinating rides, etc. Jesse ---------- Forwarded message ---------- From: Jeremy Van Horn-Morris <jv002(a)uark.edu> Date: Tue, Jan 22, 2013 at 12:38 PM Subject: 2013 Spring Redbud Geometry and Topology Conference To: GEOMETRY(a)listserv.utk.edu Announcement for the 2013 Spring Redbud Geometry and Topology Conference University of Arkansas March 9-10, 2013 Graduate workshop, Friday, March 8, 2013 http://www.comp.uark.edu/~jv002/redbud/ The second Spring Redbud Geometry and Topology conference will be happening on March 9-10, 2013, with a graduate workshop to be held on Friday, March 8. Details can be found at the conference website: http://www.comp.uark.edu/~jv002/redbud/ The speakers are: John Etnyre (Georgia Tech) Matt Hedden (Michigan State) Gordana Matic (UGA) Elena Pavelescu (Oklahoma State) Josh Sabloff (Haverford) Lisa Traynor (Bryn Mawr) Shea Vela-Vick (LSU) The conference is being organized by Dan Rutherford and Jeremy Van Horn-Morris. We anticipate having funding from the NSF to help with travel and accommodations, especially for graduate students and young researchers, women and minorities. Many thanks! Jeremy Van Horn-Morris on behalf of the organizers. -- Jeremy Van Horn-Morris Department of Mathematics University of Arkansas 420 SCEN 1 University of Arkansas Fayetteville, AR 72701 (479) 575-8630 (fax) (479) 575-6102 (office) =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- This message was sent to you via the Geometry List, which announces conferences in geometry and closely related areas to over 1200 mathematicians worldwide. At http://listserv.utk.edu/archives/geometry.html there are many functions available, including checking the archives since November 2005, changing your e-mail address or preferences, and joining/leaving the list. If you have problems that cannot be resolved at this website, send a message to cplaut(a)utk.edu. Before sending an announcement, please carefully read the following. Any announcements that are *not* about conferences (e.g. those about jobs, journals, books, etc.) will be rejected by the moderator without comment. To announce a geometry or closely related conference, send the announcement (including a conference web site if possible) to geometry(a)listserv.utk.edu. The moderator cannot edit your message; list members will receive the announcement as an e-mail from you EXACTLY as you submitted it. For example, if your submission starts with "Please post this on the geometry list" then your conference announcement will also begin with that statement. In order to keep down the volume of e-mail, only TWO announcements per conference will be approved by the moderator. The "subject" of your message should include the name of the conference and the number (first or second) of the announcement, e.g. Gauss Memorial Lectures in Geometry: Second Announcement. Please check that your announcement (especially the website) is correct. Corrections will be approved only in the most critical situations, e.g. if corrected information is not available on the website. If you send a submission from an e-mail address that is not subscribed to the geometry list then you will be sent an e-mail asking for confirmation. This feature is designed to thwart the hundreds of machine-generated spam that are sent to the list and would otherwise have to be manually blocked by the moderator. The Geometry List is sponsored and maintained by the Mathematics Department, The University of Tennessee, Knoxville.

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Organizational meeting
by Jesse Johnson 07 Jan '13

07 Jan '13

Dear Topologists and Friends of Topology, We will have an organizational meeting for the topology seminar this Thursday (the 10th) at 3:30 in MSCS 514. Jesse

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Seminar this afternoon
by Jesse Johnson 29 Nov '12

29 Nov '12

This is a reminder that Weiping Li will give the topology seminar this afternoon at 3:30 in MSCS 514. Title: An $SL_2(\mathbb{C})$ topological invariant of knots Abstract: We show that the $SL_2(\mathbb{C})$ algebro-geometric invariant defined by W.Li and Qingxue Wang for knots is indeed an $SL_2(\mathbb{C})$ topological invariant. The main ingredient is our short geometric proof of the coincidence of the algebro-geometric multiplicity and topological multiplicity of the intersection of curves on a smooth surface. The talk will review some backgrounds on invariants related issues from $SU(2)$ to $SL_2(\mathbb{C})$.

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Spring reading group?
by Jesse Johnson 24 Nov '12

24 Nov '12

Dear Topologists and Friends of Topology, A few of us have talked about starting a reading group in the spring - We'll choose a topic and one or more papers or notes on the topic, then we'll all read these papers and take turns giving weekly presentations to the rest of the group. Ideally, the topic should be something that no one in the group knows much about. If you are interested in being involved, please let me know, and also send a list of any suggested topics. Jesse

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Seminar lunch?
by Jesse Johnson 01 Nov '12

01 Nov '12

Dear Topologists and Friends of Topology, If you're interested in going to lunch today with Dale Rolfsen, please let me know. Also, mention if you have any time constraints. We'll set a time and place based on who responds. Jesse

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Redbud conference at OU
by Jesse Johnson 28 Oct '12

28 Oct '12

Dear Topologists and Friends of Topology, It's time to begin organizing rides down to OU for the Redbud conference on the 3rd. Please e-mail me if you are planning to go. Let me know if you will be able to drive, and if so how many additional mathematicians you can fit in your car. There is funding available to cover mileage and also lodging if you would like to spend a night in Norman. (Note that spending Friday night would mean not having to leave Stillwater at 7am on Saturday. Also, by state regulations, you can only get a per diem to cover food if you spend the night.) Please also let me know if you want to do this, since this will affect who rides with whom. To get the conference rate, reservations must be made by the 29th, so this should be decided soon. Jesse

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Seminar this afternoon
by Jesse Johnson 25 Oct '12

25 Oct '12

This is a reminder that Jay will be giving the topology seminar this afternoon on "Borel Ideals and Pointed Pseudo-triangulations" at 3:30 in MSCS 514.

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Fall Redbud conference at OU
by Jesse Johnson 12 Oct '12

12 Oct '12

Dear Topologists and Friends of Topology, The conference page is now up for the Fall conference at OU, which includes hotel information. There will be travel funding available to cover lodging and mileage to and from Norman. Max has asked everyone to register by October 18th (next Thursday) if you plan to go. The special rate on the rooms is available until October 29th. Because the conference is in-state, the reimbursement paperwork can all be filled out after the conference. I'll send out another e-mail about arranging rides for anyone who doesn't have a car when the date gets closer. Jesse

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Seminar Today
by Jesse Johnson 11 Oct '12

11 Oct '12

Dear Topologists and Friends of Topology, This is a reminder that Jeff Mermin is giving the seminar this afternoon at 3:30 in MSCS 514. Title: Simplicial, Cellular, and CW resolutions Abstract: One of the most exciting recent developments in commutative algebra has been the discovery that free resolutions of multigraded objects such as monomial ideals can be encoded using topology. I'll explain what free resolutions are and describe the connection.

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