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X-WR-CALNAME:Mathematics
X-ORIGINAL-URL:https://math.ua.edu
X-WR-CALDESC:Events for Mathematics
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TZID:America/Chicago
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TZOFFSETFROM:-0600
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DTSTART:20190310T080000
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DTSTART:20191103T070000
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191004T150000
DTEND;TZID=America/Chicago:20191004T160000
DTSTAMP:20191015T064434
CREATED:20190903T164637Z
LAST-MODIFIED:20191002T144335Z
UID:4257-1570201200-1570204800@math.ua.edu
SUMMARY:Analysis Seminar - Chenchen Mou\, UCLA
DESCRIPTION:Title: Weak Solutions of Mean Field Game Master Equations. \nAbstract: In this talk we study master equations arising from\nmean field game problems\, under the crucial monotonicity conditions.\nClassical solutions of such equations require very strong technical\nconditions. Moreover\, unlike the master equations arising from mean\nfield control problems\, the mean field game master equations are\nnon-local and even classical solutions typically do not satisfy the\ncomparison principle\, so the standard viscosity solution approach seems\ninfeasible. We shall propose a notion of weak solution for such\nequations and establish its wellposedness. Our approach relies on a new\nsmooth mollifier for functions of measures\, which unfortunately does not\nkeep the monotonicity property\, and the stability result of master\nequations. The talk is based on a joint work with Jianfeng Zhang. \n
URL:https://math.ua.edu/event/analysis-seminar-chenchen-mou-ucla/
LOCATION:346 Gordon Palmer Hall
CATEGORIES:Analysis Seminar,Math Department
ORGANIZER;CN="Kabe%20Moen":MAILTO:kabe.moen at ua.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191008T110000
DTEND;TZID=America/Chicago:20191008T120000
DTSTAMP:20191015T064434
CREATED:20190624T142923Z
LAST-MODIFIED:20190925T192133Z
UID:4067-1570532400-1570536000@math.ua.edu
SUMMARY:Colloquium in Honor of Hispanic Heritage Month - Ivelisse Rubio\, University of Puerto Rico
DESCRIPTION:Title: The covering method: an intuitive approach to the computation of p-divisibility of exponential sums \n \nAbstract: Exponential sums over finite fields are an important tool for solving mathematical problems and have applications to many other areas. However\, some of the methods and proofs of the results are non-elementary. The main purpose of this talk is to present the covering method\, an elementary and intuitive way to estimate or compute the p-divisibility of exponential sums\, which is particularly convenient in the applications. The covering method allows us to determine solvability of systems of polynomial equations\, improve the search for balanced Boolean functions\, give better estimates for covering radius of codes\, and has many other applications. \n
URL:https://math.ua.edu/event/colloquium-ivelisse-rubio-university-of-puerto-rico/
LOCATION:346 Gordon Palmer Hall
CATEGORIES:Colloquium,Math Department
ORGANIZER;CN="David%20Cruz-Uribe":MAILTO:dcruzuribe at ua.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191011T110000
DTEND;TZID=America/Chicago:20191011T120000
DTSTAMP:20191015T064434
CREATED:20190805T184243Z
LAST-MODIFIED:20191008T155600Z
UID:4146-1570791600-1570795200@math.ua.edu
SUMMARY:Applied Math Seminar - Wenrui Hao\, Penn State University
DESCRIPTION:Title: Homotopy Methods for Solving Nonlinear Systems and Beyond \nAbstract: This talk will cover some recent progress on homotopy\nmethods to solve nonlinear systems. I will start with homotopy methods for solving nonlinear PDEs with multiple solutions and bifurcations by coupling with domain decomposition and reduced basis methods. Examples from hyperbolic systems and free boundary problems will be used to demonstrate the ideas. Then a homotopy method will be introduced for solving maximum entropy problem to reconstruct probability density functions based on empirical data. I will also talk about a homotopy training algorithm for nonlinear optimization arising from machine learning. \n
URL:https://math.ua.edu/event/applied-math-seminar-wenrui-hao/
LOCATION:346 Gordon Palmer Hall
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191011T150000
DTEND;TZID=America/Chicago:20191011T160000
DTSTAMP:20191015T064434
CREATED:20190624T143059Z
LAST-MODIFIED:20191010T134839Z
UID:4070-1570806000-1570809600@math.ua.edu
SUMMARY:Analysis Seminar - Chang Yu\, University of Florida
DESCRIPTION:Title: Global solutions of the compressible Navier-Stokes equations \nAbstract : In this talk\, I will talk about the existence of global weak solutions for the compressible Navier-Stokes equations\, in particular\, the viscosity coefficients depend on the density. Our main contribution is to further develop renormalized techniques so that the Mellet-Vasseur type inequality is not necessary for the compactness. This provides existence of global solutions in time\, for the barotropic compressible Navier-Stokes equations\, for any $\gamma>1$\, in three dimensional space\, with large initial data\, possibly vanishing on the vacuum. This is a joint work with D. Bresch and A. Vasseur. \n
URL:https://math.ua.edu/event/analysis-seminar-cheng-yu/
LOCATION:346 Gordon Palmer Hall
CATEGORIES:Analysis Seminar,Math Department
ORGANIZER;CN="Kabe%20Moen":MAILTO:kabe.moen at ua.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191015T110000
DTEND;TZID=America/Chicago:20191015T120000
DTSTAMP:20191015T064434
CREATED:20190801T182555Z
LAST-MODIFIED:20190926T135036Z
UID:4114-1571137200-1571140800@math.ua.edu
SUMMARY:Colloquium - Xiaobing Feng\, University of Tennessee\, Knoxville
DESCRIPTION:Title: Phase field method for geometric moving interface problems and their numerical approximations \nAbstract: In this talk I shall first give a brief introduction to the phase field method for general geometric moving interface problems. The focus will be on presenting its idea\, formulation\,and relationship to other methods for moving interface problems such as the level set method.The second part of the talk will devote to discussing some latest advances in developing efficient numerical methods for solving phase field models. Two best known such models (namely\, the Allen-Cahn and Cahn-Hilliard equations) will be used as specific examples to illustrate the main mathematical and numerical issues associated with those phase field models. The focuses will be on discussing the recent developments in establishing the convergence of the numerical interfaces to the sharp interface limits of those two phase field models (namely\, the mean curvature flow and the Hele-Shaw flow)\, as both the numerical mesh parameters and the phase field parameter tend to zero\, and to present the main ideas for establishing those results\, as well as to discuss generalizations of those ideas and results to other related phase field models. \n
URL:https://math.ua.edu/event/colloquium-xiaobing-feng-university-of-tennessee/
LOCATION:346 Gordon Palmer Hall
CATEGORIES:Colloquium,Math Department
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191016T113000
DTEND;TZID=America/Chicago:20191016T123000
DTSTAMP:20191015T064434
CREATED:20190808T203003Z
LAST-MODIFIED:20190905T131244Z
UID:4178-1571225400-1571229000@math.ua.edu
SUMMARY:AWM Lunch and Learn
DESCRIPTION:
URL:https://math.ua.edu/event/awm-lunch-and-learn/
LOCATION:206 Gordon Palmer Hall\, 505 Hackberry Lane\, Tuscaloosa\, AL\, 35487\, United States
CATEGORIES:Association of Women in Mathematics,Math Department
ORGANIZER;CN="Awa%20Traore":MAILTO:atraore@crimson.ua.edu
GEO:33.2107514;-87.5424761
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=206 Gordon Palmer Hall 505 Hackberry Lane Tuscaloosa AL 35487 United States;X-APPLE-RADIUS=500;X-TITLE=505 Hackberry Lane:geo:-87.5424761,33.2107514
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20191030T150000
DTEND;TZID=America/Chicago:20191030T160000
DTSTAMP:20191015T064434
CREATED:20190620T153555Z
LAST-MODIFIED:20190620T155523Z
UID:4057-1572447600-1572451200@math.ua.edu
SUMMARY:AWM Talk: Tania Hazra\, Misericordia University
DESCRIPTION:
URL:https://math.ua.edu/event/awm-talk-tania-hazra-misericordia-university/
LOCATION:230 Gordon Palmer Hall\, 505 Hackberry Lane\, AL\, 35487\, United States
CATEGORIES:Association of Women in Mathematics,Math Department
ORGANIZER;CN="Awa%20Traore":MAILTO:atraore@crimson.ua.edu
GEO:33.2107514;-87.5424761
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=230 Gordon Palmer Hall 505 Hackberry Lane AL 35487 United States;X-APPLE-RADIUS=500;X-TITLE=505 Hackberry Lane:geo:-87.5424761,33.2107514
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