BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Mathematics - ECPv4.6.24.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Mathematics
X-ORIGINAL-URL:https://math.ua.edu
X-WR-CALDESC:Events for Mathematics
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20181001T110000
DTEND;TZID=America/Chicago:20181001T120000
DTSTAMP:20181021T233419
CREATED:20181009T183941Z
LAST-MODIFIED:20181009T183941Z
UID:3419-1538391600-1538395200@math.ua.edu
SUMMARY:Algebra/Topology Seminar - Krystyna Kuperberg\, Auburn University
DESCRIPTION:
URL:https://math.ua.edu/event/algebra-topology-seminar-krystyna-kuperberg-auburn-university/
LOCATION:230 Gordon Palmer Hall\, 505 Hackberry Lane\, AL\, 35487\, United States
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
CATEGORIES:Algebra/Topology Seminar,Math Department
ORGANIZER;CN="Bulent%20Tosun":MAILTO:btosun@ua.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20181002T110000
DTEND;TZID=America/Chicago:20181002T120000
DTSTAMP:20181021T233419
CREATED:20180910T130925Z
LAST-MODIFIED:20180910T131415Z
UID:3243-1538478000-1538481600@math.ua.edu
SUMMARY:Colloquium - Rodrigo Bañuelos\, Purdue University
DESCRIPTION:Title: On the discrete Hilbert transform \n \nAbstract: The discrete Hilbert transform\, acting on the space of (doubly infinite) sequences\, was introduced by David Hilbert at the beginning of the 20th century. It is the discrete analogue of the continuous Hilbert transform acting on functions on the real line (conjugate function in the periodic case). In 1925\, M. Riesz proved the Lp boundedness\, for p larger than one and finite\, of the continuous version\, thereby solving a problem of considerable interest at the time. From this he deduced the same result for the discrete version. In 1926 E.C. Titchmarsh turned this around. He gave a direct proof of the boundedness of the discrete Hilbert transform on lp and from it deduced the same for the continuous version. Further\, he showed that the discrete and continuous versions have the same p-norms. Unfortunately\, the following year Titchmarsh pointed out that his argument for equality of the norms was incorrect. The problem of equality has been a long-standing conjecture since. In this lecture we describe—taking a historical point of view and avoiding technicalities as much as possible—some tools from probability theory that lead to a proof of this conjecture. \nThe talk is based on joint work with Mateusz Kwasnicki of Wroclaw University\, Poland. \n \n
URL:https://math.ua.edu/event/colloquium-rodrigo-banuelos-purdue-university/
LOCATION:346 Gordon Palmer Hall
CATEGORIES:College of Arts and Sciences,Colloquium,Math Department,University of Alabama
ORGANIZER;CN="David%20Cruz-Uribe":MAILTO:dcruzuribe at ua.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20181005T110000
DTEND;TZID=America/Chicago:20181005T120000
DTSTAMP:20181021T233419
CREATED:20181004T184611Z
LAST-MODIFIED:20181004T185603Z
UID:3404-1538737200-1538740800@math.ua.edu
SUMMARY:Applied Math Seminar - Shan Zhao\, University of Alabama
DESCRIPTION:Title: An overview of numerical algorithms for the Poisson-Boltzmann equation in biomolecular electrostatics \nAbstract: The Poisson-Boltzmann Equation (PBE) is a widely used implicit solvent model for the electrostatic analysis of solvated biomolecules. The numerical solution of the PBE is known to be challenging\, due to the consideration of discontinuous coefficients\, complex geometry of protein structures\, singular source terms\, and strong nonlinearity. In this talk\, I will offer a brief overview of recent studies in the literature as well as new developments in our group for resolving the PB numerical difficulties. \n(i). For treating dielectric interface and complex geometry\, both finite element methods and Cartesian grid finite difference methods have been developed for delivering a second order accuracy in space.\n(ii). In the framework of pseudo-time integration\, we have constructed an analytical treatment to suppress the nonlinear instability.\n(iii) Recently\, we have introduced a new regularization method for treating charge singularity in solvated biomolecules. In a regularization method\, by decomposing the potential function into two or three components\, the singular component can be analytically represented by the Green’s function\, while other components possess a higher regularity. Our new regularization combines the efficiency of two-component schemes with the accuracy of the three-component schemes.\nFinally\, numerical experiments of several benchmark examples and free energy calculations of protein systems are presented to demonstrate the stability\, accuracy\, and efficiency of the new algorithms. \nThis research is partially supported by the Simons Foundation award 524151 and the National Science Foundation (NSF) Grant DMS-1812930. \n
URL:https://math.ua.edu/event/applied-math-seminar-shan-zhao-university-of-alabama/
LOCATION:302 Gordon Palmer Hall
CATEGORIES:Applied Math Seminar,College of Arts and Sciences,Math Department,University of Alabama
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20181005T150000
DTEND;TZID=America/Chicago:20181005T160000
DTSTAMP:20181021T233419
CREATED:20181001T145735Z
LAST-MODIFIED:20181003T212221Z
UID:3387-1538751600-1538755200@math.ua.edu
SUMMARY:Analysis Seminar - Tuoc Phan\, University of Tennessee\, Knoxville
DESCRIPTION:Title: Calderon-Zygmund theory for nonlinear partial differential equations and applications \nAbstract: In this talk\, we will discuss several recent developments on regularity theory estimates in Sobolev spaces for solutions of several classes of elliptic and parabolic nonlinear PDEs. Some classes of considered equations may be singular and degenerate. Important ideas and techniques will be highlighted. Connections and applications of the results to other areas will be discussed or briefly mentioned. In particular\, a solution to an open question on the existence and uniqueness of smooth global-time solutions of a system of nonlinear parabolic equations called cross-diffusion equations will be given. \n
URL:https://math.ua.edu/event/analysis-seminar-tuoc-phan-university-of-tennessee-knoxville/
LOCATION:227 Gordon Palmer Hall\, 505 Hackberry Lane\, Tuscaloosa\, AL\, 35487\, United States
GEO:33.2107514;-87.5424761
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=227 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
CATEGORIES:Analysis Seminar,College of Arts and Sciences,Math Department,University of Alabama
ORGANIZER;CN="Kabe%20Moen":MAILTO:kabe.moen at ua.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20181008T110000
DTEND;TZID=America/Chicago:20181008T120000
DTSTAMP:20181021T233419
CREATED:20181009T184107Z
LAST-MODIFIED:20181009T184121Z
UID:3421-1538996400-1539000000@math.ua.edu
SUMMARY:Algebra/Topology Seminar - Sergio Fabi\, University of Alabama
DESCRIPTION:Title: Synthetic Differential Geometry 101 \n
URL:https://math.ua.edu/event/algebra-topology-seminar-sergio-fabi-university-of-alabama/
LOCATION:230 Gordon Palmer Hall\, 505 Hackberry Lane\, AL\, 35487\, United States
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
CATEGORIES:Algebra/Topology Seminar,Math Department
ORGANIZER;CN="Bulent%20Tosun":MAILTO:btosun@ua.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20181015T110000
DTEND;TZID=America/Chicago:20181015T120000
DTSTAMP:20181021T233419
CREATED:20181009T165548Z
LAST-MODIFIED:20181009T165624Z
UID:3415-1539601200-1539604800@math.ua.edu
SUMMARY:Colloquium - Yuanzhen Shao\, Georgia Southern University
DESCRIPTION:Title: Singular Manifold Theory and Its Applications \nAbstract: The aim of this talk is to introduce the concept of singular manifolds\, which can describe various kinds of geometric and analytic singularities in a unified way\, and then my recent work on the partial differential equation theory over singular manifolds will be presented. Based on this theory\, I will investigate several linear and nonlinear parabolic equations arising from geometric analysis and applied sciences. Emphasis will be placed on geometric flows with “bad” initial metrics. \n
URL:https://math.ua.edu/event/colloquium-yuanzhen-shao-georgia-southern-university/
LOCATION:302 Gordon Palmer Hall
CATEGORIES:Analysis Seminar,Graduate,Math Department,University of Alabama
ORGANIZER;CN="David%20Cruz-Uribe":MAILTO:dcruzuribe at ua.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20181015T110000
DTEND;TZID=America/Chicago:20181015T120000
DTSTAMP:20181021T233419
CREATED:20181018T212208Z
LAST-MODIFIED:20181018T212550Z
UID:3474-1539601200-1539604800@math.ua.edu
SUMMARY:Math Ed Seminar
DESCRIPTION:
URL:https://math.ua.edu/event/math-ed-seminar-3/
LOCATION:234 Gordon Palmer Hall\, AL\, United States
GEO:32.3182314;-86.902298
CATEGORIES:Graduate,Math Department,Math Ed Seminar,University of Alabama
ORGANIZER;CN="Jim%20Gleason":MAILTO:jgleason at ua.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20181019T110000
DTEND;TZID=America/Chicago:20181019T120000
DTSTAMP:20181021T233419
CREATED:20181016T141621Z
LAST-MODIFIED:20181016T141621Z
UID:3449-1539946800-1539950400@math.ua.edu
SUMMARY:Applied Math Seminar - Husheng Li\, University of Tennessee\, Knoxville
DESCRIPTION:Title: Data Driven Quickest Change Detection: In the Spirit of Kullback\, Kolmogorov and Shannon \nAbstract: Quickest change detection is to detect the unknown change of distribution of random process\, which has a wide spectrum of applications in practice such as signal processing\, financial data analysis and power grid operation\, et al. In traditional quickest change detection algorithms\, it is assumed that the distributions before and after the change are known in advance. This assumption is relaxed to unknown post-change distributions in some studies\, under the assumption of i.i.d. samples. However\, there have not been researches on more generic random processes\, such as ergodic processes. In this talk\, we will first assume i.i.d. samples and apply the Kullback-Leibler entropy to evaluate the distance between the pre-change and post-change distributions\, without knowing the distributions themselves. Then\, for generic ergodic random processes (not necessarily Markovian) with deterministic samples\, we adopt two approaches to handle the unavailability of probabilistic structures. One approach follows the spirit of Kolmogorov; i.e.\, we use the Turing machine as the underlying model for generating the samples and consider the Kolmogorov complexity for measuring the model effectiveness. Then\, the algorithmic probability\, based on the Kolmogorov complexity\, is used to turn the deterministic setup into a stochastic one\, thus facilitating the application of traditional probabilistic framework. The other approach is to consider an operational representation of probability. Traditional representation of probability distribution is based on the probability on cylinder sets\, which is difficult to manipulate when only deterministic samples are available. Therefore\, we adopt the typical sequence\, which was originally proposed by Shannon and is supported by various approaches in data mining\, to represent probability distributions. In the algorithm typical sequences will be mined using a tree structure\, and the change of distribution is detected by the change of typical sequence set. \n
URL:https://math.ua.edu/event/applied-math-seminar-husheng-li-university-of-tennessee-knoxville/
LOCATION:302 Gordon Palmer Hall
CATEGORIES:Applied Math Seminar,Math Department,University of Alabama
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20181019T150000
DTEND;TZID=America/Chicago:20181019T160000
DTSTAMP:20181021T233419
CREATED:20181017T200906Z
LAST-MODIFIED:20181017T200959Z
UID:3470-1539961200-1539964800@math.ua.edu
SUMMARY:Analysis Seminar - José María Martell (Instituto de Ciencias Matematicas\, Madrid Spain)
DESCRIPTION:Title: Understanding BMO and VMO using elliptic systems in the upper-half space \nAbstract: Harmonic Analysis plays a fundamental role in the study of boundary value problems for elliptic operators. In the simplest case of the Laplacian in the upper half-space\, the Dirichlet boundary value problem with data in BMO (i.e.\, having bounded mean oscillation) is solved using the harmonic Poisson kernel\, and the corresponding solutions satisfy a Carleson measure estimate. This was established by Fabes\, Johnson\, and Neri who also obtained a Fatou type result allowing them to recover the space BMO from the non-tangential traces of harmonic functions in the upper half-space satisfying a Carleson measure condition. \nThe goal of this talk is to extend the previous ideas to the case of second-order\, homogeneous\, elliptic systems\, with constant complex coefficients\, such as the Lam\’e system of elasticity. Furthermore\, we also consider the Dirichlet problem with data in VMO (i.e.\, having vanishing mean oscillation) and find the corresponding Fatou type result which allows us to identify VMO with the traces of null solutions satisfying a vanishing Carleson measure condition. As a consequence\, we obtain that the set of smooth functions in BMO are dense in VMO\, improving Sarason’s classical result describing VMO as the closure of uniformly continuous functions in BMO. In hindsight\, we are able to obtain a harmonic analysis result using PDE techniques. \n
URL:https://math.ua.edu/event/analysis-seminar-jose-maria-martell-instituto-de-ciencias-matematicas-madrid-spain/
LOCATION:230 Gordon Palmer Hall\, 505 Hackberry Lane\, AL\, 35487\, United States
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
CATEGORIES:Analysis Seminar,Graduate,Math Department,University of Alabama
ORGANIZER;CN="Kabe%20Moen":MAILTO:kabe.moen at ua.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20181030T110000
DTEND;TZID=America/Chicago:20181030T120000
DTSTAMP:20181021T233419
CREATED:20181016T210304Z
LAST-MODIFIED:20181016T210304Z
UID:3467-1540897200-1540900800@math.ua.edu
SUMMARY:Colloquium - Bo Li\, University of California\, San Diego
DESCRIPTION:Title: Predict the Ligand-Receptor Binding/Unbinding Kinetics with the Variational Implicit-Solvent Model and the String Method \nAbstract: The ligand-receptor binding/unbinding is a complex biophysical process in which water plays a critical role. To understand the fundamental mechanisms of such a process\, we have developed a new and efficient approach that combines our level-set variational implicit-solvent model with the string method for transition paths\, and have studied the pathways of dry-wet transition in a model ligand-receptor system. We carry out Brownian dynamics simulations as well as Fokker-Planck equation modeling with our efficiently calculated potentials of mean force to capture the effect of solvent fluctuations to the binding and unbinding processes. Without the description of individual water molecules\, we have been able to predict the binding and unbinding kinetics quantitatively in comparison with the explicit-water molecular dynamics simulations. Our work indicates that the binding/unbinding can be controlled by a few key parameters\, and provides a tool of efficiently predicting molecular recognition with application to drug design. \n \n
URL:https://math.ua.edu/event/colloquium-bo-li-university-of-california-san-diego/
LOCATION:302 Gordon Palmer Hall
CATEGORIES:College of Arts and Sciences,Colloquium,Math Department,University of Alabama
ORGANIZER;CN="Shibin%20Dai":MAILTO:sdai4@ua.edu
END:VEVENT
END:VCALENDAR