Mdtop February 2023

mdtop@mathdept.okstate.edu

1 participants
2 discussions

Today in topology seminar
by Hoffman, Neil 23 Feb '23

23 Feb '23

Hello everyone, Today in topology seminar we have Jennifer Hom speaking at 4pm in MSCS 514. We will resume seminar at the normal time Tuesdays at 3:30 in the coming weeks. If you would like to sign up for a slot let me know. PL-surfaces in homology 4-balls Jennifer Hom, Georgia Institute of Technology Abstract: We consider manifold-knot pairs (Y, K) where Y is a homology 3-sphere that bounds a homology 4-ball. Adam Levine proved that there exist pairs (Y, K) such that K does not bound a PL-disk in any bounding homology ball. We show that the minimum genus of a PL surface S in any bounding homology ball can be arbitrarily large. The proof relies on Heegaard Floer homology. This is joint work with Matthew Stoffregen and Hugo Zhou. ______________________ Neil R. Hoffman Assistant Professor Department of Mathematics 523 Math Science Building Oklahoma State University Stillwater, OK 74078-1058 405-744-7791 http://math.okstate.edu/people/nhoffman

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Fw: redbud
by Hoffman, Neil 07 Feb '23

07 Feb '23

Hi everyone, A few quick things. First, there is a colloquium today, but this is the last Tuesday colloquium of the semester. After this, our normal 3:30 pm Tuesday slot is free. Second, if you haven't registered for Redbud please do: https://docs.google.com/forms/d/e/1FAIpQLSfqCzjytNC3SGrpJcBHAaTHqOlnIDcP52_… It has the registration deadline as February 28, but the organizers are trying to give us a preference on funding, so if we could register ASAP (say by Friday) that would be best. Best, Neil ______________________ Neil R. Hoffman Assistant Professor Department of Mathematics 523 Math Science Building Oklahoma State University Stillwater, OK 74078-1058 405-744-7791 http://math.okstate.edu/people/nhoffman ________________________________ From: jing tao <jing(a)ou.edu> Sent: Tuesday, February 7, 2023 11:24 AM To: Matt Clay <mattclay(a)uark.edu>; Hoffman, Neil <neil.r.hoffman(a)okstate.edu> Subject: redbud CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe Hey guys, Can you rally your department to register for Redbud? We are trying to sort out funds right now and it would be immensely helpful if we can get an accurate headcount. Best, jing

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Mdtop February 2023