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Today:
Topology and Geometry Seminar [url]
Average Kissing Numbers For Non-Congruent Sphere Packings
    - Thanittha Kowan, FSU
Time: 3:35 Room: 201
Abstract/Desc: I will introduce a definition of kissing numbers of a sphere packings in 3-dimensional real space. We will talk about Greg Kuperberg and Oded Schramn’s Theorem showing that the average numbers for non-congruent sphere packings is bounded. The goals is to go over the proof of the upper bound of the theorem.

Entries for this week: 14
Monday October 22, 2018

Analysis & PDE
Time: 2:30-3:30 Room: 104 LOV

Math Is Fun! Seminar [url]
Math Projects
    - Dr. Monica K. Hurdal, Department of Mathematics, FSU
Time: 3:35pm Room: LOV 102

Tuesday October 23, 2018

Topology and Geometry Seminar [url]
Average Kissing Numbers For Non-Congruent Sphere Packings
    - Thanittha Kowan, FSU
Time: 3:35 Room: 201
Abstract/Desc: I will introduce a definition of kissing numbers of a sphere packings in 3-dimensional real space. We will talk about Greg Kuperberg and Oded Schramn’s Theorem showing that the average numbers for non-congruent sphere packings is bounded. The goals is to go over the proof of the upper bound of the theorem.

Wednesday October 24, 2018

Departmental Tea Time
C is for cookie, and shorthand for C[0,1] w/the sup norm
Time: 3: Room: 204 LOV

Biomathematics Seminar
    - Carolyn Eady, FSU
Time: 3:35 pm Room: LOV 200

Biomathematics Journal Club
Dynamic Causal Modeling of Evoked Potentials: A Reproducibility Study
    - Jacob Brewer,
Time: 5:00 Room: Dirac Library

Biomathematics Seminar
An Overview of the Method of Partial Rank Correlation Coefficient for Determining the Global Sensitivity of Model Parameters
    - Johnna Barnaby, FSU
Time: 3:35 pm Room: LOV 200
Abstract/Desc: Mathematical models can be useful in determining mechanisms of biological systems. However, there can be uncertainties in data used to estimate parameters. Global sensitivity analysis allows us to quantify these uncertainties, and determine how parameters impact model outcomes. Based on the paper by Marino et al. this talk will give and introduction to the method of Partial Rank Correlation Coefficient (PRCC).

algebras and analysis
Field extensions, valuation rings and Riemann surfaces I
    - Y. Almalki,
Time: 3:35 Room: 102 love

Thursday October 25, 2018

Financial Mathematics Seminar
Limits of random walks over point processes and a Black-Scholes analog
    - Navid Salehy, FSU
Time: 3:35 pm Room: LOV 201

Algebra
Methods for Simplifying Differential Equations
    - Shayea Aldossari, Florida State University
Time: 3:35 Room: LOV104

Brain Mapping Seminar [url]
An Introduction to Algebraic Topology for Neuroscientists - Part 2
    - Carolyn Eady, Department of Mathematics, FSU
Time: 2:00pm Room: LOV 107
Abstract/Desc: Based on a lecture series by Ran Levi, this talk is a crash course in basic algebraic topology for scientists with a basic background in mathematics. We introduce simplicial complexes, discuss graphs, and will introduce basic topology and a little bit of homology. This is all in preparation for a second talk to be held next week, in which we discuss Topological Data Analysis.

Friday October 26, 2018

Colloquium Tea
Time: 3:00 pm Room: 204 LOV

Mathematics Colloquium
The Future of Technology as Driven by the Rise of Digital Audio and Video
    - James A. Moorer, formerly of Adobe and LucasFilms
Time: 3:35 pm Room: LOV 101
Abstract/Desc: This presentation charts progress of technology from 1980 to 2000 and then projected to 2020 all through looking at advances in digital audio, digital video and music. The drivers of technology have moved from the military-industrial-aerospace industries of the 50's, 60's, 70's and 80's to entertainment technology. The bulk of the chip area of most modern processors is devoted to entertainment rather than traditional uses such as word processing and spread sheets. This means that to some extent, technology and entertainment have merged. People in the arts and entertainment must now be conversant with technology, but also people in technology must be conversant with the needs and practice of the arts and entertainment in order to understand what they are designing for. This progression is illustrated by noting a number of points where the technology has changed over the decades specifically to support arts and entertainment, many of which the author has participated in or pioneered. Some of these changes were initially misguided due to a lack of understanding of the requirements of digital audio and video. As understanding of the issues has permeated the technology industry, computers and computer systems have evolved to the point where even the largest computer systems in the world are built largely to serve the demands of the entertainment industry, and other uses, such as weather simulations, are fortuitous side-benefits of this progression. This is a most remarkable evolution from the 1950's.

Topology and Geometry Seminar [url]
Metric Graph Approximations of Geodesic Spaces
    - Osman Okutan, Ohio State
Time: 1:25 Room: 201
Abstract/Desc: A standard result in metric geometry is that every compact geodesic metric space can be approximated arbitrarily well by finite metric graphs in the Gromov-Hausdorff sense. It is well known that the first Betti number of the approximating graphs may blow up as the approximation gets finer. In our work, given a compact geodesic metric space X , we define a sequence of non-negative real numbers by related to how well X can be approximated by finite graphs with Betti number at most n By construction, and the above result, this is a non-increasing sequence with limit 0. We study this sequence and its rates of decay with n. We also identify a precise relationship between the sequence and the first Vietoris-Rips persistence barcode of X . Furthermore, we specifically analyze the sequence and find upper and lower bounds based on hyperbolicity and other metric invariants. As a consequence of the tools we develop, our work also provides a Gromov-Hausdorff stability result for the Reeb construction on geodesic metric spaces with respect to the specific function given by distance to a reference point. This is a joint work with Facundo Memoli. For more detail, please see arxiv preprint: https://arxiv.org/abs/1809.0556


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