- Mdemeriti - mathdept.okstate.edu

Mark your calendars for our Annual Student Recognition Ceremony on April 28, 2023!
by Denzler, Sarah 28 Apr '23

28 Apr '23

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Math Colloquium today
by David Wright 21 Apr '23

21 Apr '23

Hello: There is a math colloquium today: Speaker: Yudong Cao, Chief Technology Office and Co-Founder of Zapata Computing Title: Quantum-enahnced machine learning and optimization The abstract is below. This talk is via Zoom but it will be shown on the projector in MSCS 101 at 3:30 PM. The Zoom link is https://okstate-edu.zoom.us/j/96799414512 Since this is virtual, there will be some refreshments before the talk in the department 4th floor lounge at 3PM, instead of afterwards. Please join us either online or in MSCS 101 David Wright Abstract: I will introduce the subject of quantum computing, followed by discussions on how it can be applied to machine learning and optimization. We have done experiments in the past years on quantum devices for enhancing machine learning applications, especially generative modeling capabilities. I will also discuss the significance role of tensor networks, a highly related area to quantum, in our quest for quantum advantage.

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Math Colloquia Coming Up
by David Wright 13 Apr '23

13 Apr '23

Dear friends: Tomorrow (Friday, April 14) there will be a math colloquium at 3:30 PM in MSCS 101: Speaker: Qing Han, Notre Dame University Title: Regularity of singular solutions of differential equations Abstract is below. Refreshments will follow at 4:30 in the department fourth floor lounge. Next week the final spring colloquium will be Friday, April 21st: Dr. Yudong Cao, CTO and cofounder of Zapata Computing Title: Quantum-enhanced machine learning and optimization This will be a virtual talk on zoom (details to be communicated later) but you can also come to MSCS 101 at 3:30 PM where we will have a community viewing. On Friday April 28th, in place of a colloquium we will have the Department Awards Meeting in the French Lounge of the Student Union, where we will recognize our students' successes. On Friday May 5th, we will have the Math Department Student Research Poster Session at the MLSC. Please come join us, David Wright Math Colloquium Friday, April 14, 3:30 PM, MSCS 101 Speaker: Qing Han, Notre Dame University Title: Regularity of singular solutions of differential equations Abstract: In many important geometric differential equations, solutions are not necessarily regular. When singularity occurs, we still intend to explore whether solutions possess regularity of a certain degree. The structure of the singular sets, where solutions become singular, plays an important role. In this talk, we focus on one case. The singular sets are isolated. To study the regularity of solutions near the singular sets, we investigate asymptotic expansions of solutions. The talk is intended for a general audience.

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Math Colloquium on Friday April 7
by David Wright 06 Apr '23

06 Apr '23

Hi: There is a math colloquium tomorrow April 7 at 3:30 PM in MS 101: Speaker: YanYan Li of Rutgers University Title: Gradient estimates for elliptic equations from composite material See below for the abstract. Refreshments at 4:30 in the department lounge. Hope to see you there, David Wright Abstract: In this talk, we discuss gradient estimates for a class of divergence form elliptic equations with piecewise smooth coefficients. Such equations arise from the study of composite materials. The novelty of these estimates is that, even though they depend on the shape and on the size of the surfaces of discontinuity of the coefficients, they are independent of the distance between these surfaces. The talk is intended for a general audience.

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Math Colloquium today
by David Wright 24 Mar '23

24 Mar '23

Hi: There is a math colloquium today at 3:30 PM in MSCS 101: Speaker: Professor Hoi H. Nguyen of Ohio State University Title: On roots of random polynomials See abstract below. Hope to see you there, David Wright Abstract: The study of roots of random polynomials is an active area of research that has been ongoing since the early 1900s. In this talk, we will survey some recent developments, focusing on robust frameworks to establish various universality properties. These include the local correlation of roots, the variance of the number of real roots, concentration phenomenon, and CLT fluctuation of the number of real roots. The talk is partly based on joint works with Y. Do, D. Lubinsky, O. Nguyen, I. Pritsker, and V. Vu.

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Math Colloquium Today Friday at 3:30 PM in MS101
by David Wright 03 Mar '23

03 Mar '23

Hi: We have a colloquium today from C. Douglas Haessig, University of Arizona at 3:30 PM in MSCS 101 Title: Families of exponential sums over finite fields ==== Abstract: The now proven Weil conjectures had a profound influence on number theory and algebraic geometry in the last century. The first of the conjectures was proven by Dwork in 1960 using an ingenious application of exponential sums and p-adic analysis. Exponential sums lie at the heart of many proofs in number theory, such as one of Gauss’ proofs of quadratic reciprocity. In the years following Dwork’s proof, it became apparent that studying families of exponential sums yielded further insights. In this talk, we will discuss a few of these insights. ==== Hope to see you there! David Wright

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Math Colloquium Today
by David Wright 24 Feb '23

24 Feb '23

Hi: There is a math colloquium today in the Distinguished Women in Mathematics Series today at 3:30PM in MSCS 101. Refreshments at 4:30 in the department common room. The speaker is Jennifer Hom, from Georgia Institute of Technology: Title: Unknotting number and satellites Abstract below. Please come join us. Sincerely, David Wright Abstract: The unknotting number of a knot is the minimum number of crossing changes needed to untie the knot. It is one of the simplest knot invariants to define, yet remains notoriously difficult to compute. We will survey some basic knot theory invariants and constructions, including the satellite knot construction, a straightforward way to build new families of knots. We will give a lower bound on the unknotting number of certain satellites using knot Floer homology. This is joint work with Tye Lidman and JungHwan Park.

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Math Colloquia this week
by David Wright 07 Feb '23

07 Feb '23

Hello: We have two math colloquia this week: Tuesday. Feb. 3, 3:30PM Speaker: Jayan Mukherjee, University of California, Riverside Title: Multiple Structures in Algebraic Geometry: New approaches to classical and current problems Zoom link: https://okstate-edu.zoom.us/j/92686537208?pwd=bHFZVnd4UDFncC9MblJDS1V1Z1FEU… On Friday, February 10, 3:30 PM, we have Speaker: Yanwen Luo, Rutgers University, New Brunswick Title: Drawing and Morphing Graphs on Surfaces Zoom link: https://okstate-edu.zoom.us/j/98729728660?pwd=OEtjQy9QWmlCZWl2M3ZFcHFUUUtTd… Both abstracts are attacjed to this message. After this week, we probably will have a little hiatus, but there are dates available for colloquia. If you have suggestions for speakers, please let me know. David

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Warm yourselves with Math Colloquia this week
by David Wright 30 Jan '23

30 Jan '23

Hi, There are two virtual math colloquia this week from top young mathematicians. Even though the campus may be closed tomorrow, Zoom will not be. The first colloquium is: Tuesday, Jan. 31, 3:30 PM via Zoom: Xiaoqian Gong, Arizona State University Title: On the Mathematical Properties of Some Multi-Scale Traffic Models Abstract is attached with QR code for Zoom link. Also, here is the Zoom link https://okstate-edu.zoom.us/j/94559508908?pwd=aFZNNVZSVGRUTXNoaUhzRGZIMVNiZ… Second colloquium is: Friday, Feb. 03, 9:00 AM via Zoom (Note the speaker is in Hong Kong, which is why this is an early morning talk.) Kayue Daniel Wong, The Chinese University of Hong Kong Title: Classifying the unitary dual of real reductive groups Abstract is attached with QR code for Zoom link. Also here is the Zoom link: https://okstate-edu.zoom.us/j/91911677357?pwd=RDVxRmMvNUJEd21reE9lcXk0N2h2U… I hope you can join us. The talks will be recorded, and a link may be provided upon request after the talks. Sincerely, David Wright

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Math Colloquia this week
by David Wright 23 Jan '23

23 Jan '23

Dear friends: There are two math colloquia this week: Tuesday, 3:30 PM at zoom link: https://okstate-edu.zoom.us/j/93298136222?pwd=VTg4c2xuRG4wMExKVFJwSWp1LzBPQ… Sümeyra Sakalli, University of Arkansas Exotic 4-manifolds and complex surfaces, algebraic fibrations, singularities and knots Abstract is attached to this message, which has a QR code for the Zoom link. Friday, 3:30 PM at Zoom link: https://okstate-edu.zoom.us/j/98083413777?pwd=aGtRckVTOTgzV2xucGdPNGE1ZmNVd… Serin Hong, Simons Laufer MSI/University of Michigan p-adic Geometry - A Grand Junction of Mathematics Abstract attached to this message. Hope to see you there, David Wright

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