Seminars and Colloquia

The Joint Mathematics and Computing Colloquium for 2017.

To be announced

Mathematics and Statistics Colloquium for 2017

Name/Institution

Title of Talk

 Abstract

 Date/Time/Room

Dr. Dennis Bell / UNF

Associative Binary Operations and the Pythagorean Theorem

 Abstract: The Pythagorean Theorem is one of the oldest and most famous results in geometry, perhaps in all of mathematics. The theorem is known to every school- boy and girl. It has been given hundreds of different proofs over the ages. About 20 new proofs were discovered by Dr. Tong and his students alone! In this talk we present a new angle on the Pythagorean theorem (no pun intended). The idea is to derive the well-known formula from certain “obvious” qualitative properties. This novel approach to PT was initiated by L. Berrone in a paper in the American Mathematical Monthly and continued by the speaker. It has the interesting feature of bringing together two very different branches of mathematics, the ancient subject of Euclidean geometry and the much more recent area of functional equations. Along the way, a surprising proof pops out.

 Tuesday Oct 17th

 

12:15 – 1:15 pm 

Math Lab 14E/2743

Dr. Dinh, Dr. Dumitru, and Dr. Franco/UNF  Dr.

Information regarding the Quantun Theory and Matrix Analysis

Here are some sources on quantum information theory.

1- Nielsen's book: http://www-reynal.ensea.fr/docs/iq/QC10th.pdf

 This is one of the most famous and most cited books in the history (~30200 citations)

 

2- Majorization in quantum information theory (again this is a paper of Nielsen):  http://michaelnielsen.org/papers/majorization_review.pdf

 

3- Another book is http://www.springer.com/us/book/9783540746348.

 Thursdays

 

1 pm 

  Building14E/2738

Dr. Daniel Dreibelbis

Freakin's Big Numbers 

Abstract: We all know that numbers go on forever; numbers are infinite.  But what numbers do we actually use?  What are the biggest numbers that show up in science and mathematics?  In this talk, we present some of these really big numbers that show up in physics, number theory, cryptography, and graph theory.  Then we laugh at their puny existence as we learn about Graham’s Number, a Guinness Book of World Record holder for the biggest number ever used in a mathematics proof.

Thursday, Nov. 7th

 

12:15 – 1:15 pm 

Math Lab 14E/2743

Tim Muzzey, FCAS - Director, Commercial Lines Pricing

AND

Lingmin Jiang, ACAS, CSPA - Actuarial Consultant, Commercial Lines Pricing

The Main Street America Group Actuarial Internship Program (Summer of 2018)  Abstract: Great opportunities await you at The Main Street America Group! The Main Street America Group is a billion-dollar super-regional property & casualty insurance company, providing products in 36 states. You will have the opportunity to build skills in a professional work environment, work directly with our managers and executives, and gain valuable work experience toward employment in the insurance industry.
Tuesday, Feb. 6th 

12:15 – 1:15 pm 

Math Lab 14E/2743

Mr. Chudamani Poudyal  T-Estimation of Claim Severity Distributions Abstract: Parametric statistical models for insurance claims severity are continuous, right-skewed, and frequently heavy-tailed. The data sets that such models are usually fitted to contain outliers that are difficult to identify and separate from genuine data. Moreover, due to commonly used actuarial \loss control schemes", the random variables we observe and wish to model are an ected by truncation (due to deductibles), censoring (due to policy limits), scaling (due to coinsurance proportions) and other transformations. In the current practice, statistical inference for loss models is almost exclusively likelihood based, which typically results in non-robust parametric estimators, pricing models, and risk measures. In this talk, we redesign the method of trimmed moments (Brazauskas, Jones, Zitikis, 2009) to accommodate the loss variable transformations, establish its asymptotic and small-sample properties, and study its practical performance in applications. For numerical illustrations, we use the Norwegian Fire Claims Data Set for the year 1975. Tuesday, Feb. 20th 

12:15 – 1:15 pm 

Math Lab 14E/2743

Dr. Jae-Ho Lee Leonard pairs Abstract: Roughly speaking, a Leonard pair consists of two diagonal linear transformations on a finite-dimensional vector space, each of which acts in an irreducible tridiagonal fashion on an eigenbasis for the other one. In this talk, we give several examples of Leonard pairs and illustrate how Leonard pairs arise in representation theory and the theory of orthogonal polynomials. This talk is aimed at an undergraduate audience with little background in linear algebra. We do not assume prior knowledge of representation theory or the theory of orthogonal polynomials. Thursday, Feb. 22th 

12:15 – 1:15 pm 

Math Lab 14E/2743

Mr. Joseph Ferrara
Product Manager, GleanView
The link between college and workplace Former UNF student and UNF SIAM officer Joseph Ferrara will join us to talk about the link between college and workplace as a Math/Stat major. He will talk about his experiences and also what employers need from math/stat majors. Before his talk we will also have an open discussion about SIAM in general and what our club has to offer. Tuesday, Feb. 27th 

12:15 – 1:15 pm 

Math Lab 14E/2743

Dr. Buzaianu and Dr. Czerwinska
Professors, Department of Mathematics and Statistics
Selecting among Treatments with Two Binary Endpoints* and Monotonicity Properties in Symmetric Spaces of Measurable Operators** *In phase II clinical trials, new treatments/therapies are studied relative to both treatment efficacy and safety. We propose a procedure for selecting a random size subset that contains all experimental treatments that are better than the standard. The comparison is with regard to two binary endpoints, in order to account for both treatment efficacy and safety. An experimental treatment is considered to be better than the standard if its two endpoints have successful rates higher than those associated with the standard. We derive the probability of a correct selection for our procedure and show that, whenever an experimental treatment is significantly better than the standard, our procedure achieves the probability requirements predetermined by the experimenter.

**There are many known connections in Banach lattices between monotonicity and convexity properties. I will discuss my work aiming to generalize those relations to symmetric spaces of measurable operators E(M,τ). I will also establish a new relation between upper monotone points and k-extreme points, which was not even known for function spaces. Finally, I will consider how monotonicity properties in E are reflected in E(M,τ), and vice versa. Let M be a non-atomic, semifinite von Neumann algebra with a faithful, normal, σ-finite trace τ. The symmetric spaces E(M,τ) consists of all τ -measurable operators x for which the singular value function μ(x) belongs to E and is equipped with the norm ||E(M,τ) || =||μ(x)||E.

These researches were supported by 2017 UNF Summer Scholarship Grant  

Friday, April 27th 

12:00 – 1:00 pm 

Math Lab 14E/2743

Mr. Hochwald* and Mr. Denteh**
Product Manager, GleanView
Using the EM Algorithm for Normal Mixture Models with Unknown Parameters and Split Plot Design *This presentation will explore the ways in which the EM algorithm is used to estimate the unknown parameters for normal mixture models with two components. The methods behind the algorithm will be discussed in detail, and there will be a simulated example included to illustrate the workings of the algorithm.

**In some multifactor factorial experiments, we may be unable to completely randomize the order of runs. This often results in a generalization called the split plot design. In this presentation, we describe the split plot design and provide an example.

Monday, April 23, 2018 

1:30 – 2:30 PM 

Math Lab 14E/2743

 

  

Past Events

Past Colloquia Speakers

MAA Regional Meeting 2010 - Event Highlights

Summability Conference 2010 - Event Highlights

 

 

 Some abstract for past colloquium speaker can be found through the following links.

Asaithambi Abstract 

 

Cenzer Abstract  

 

Rozenburg Abstract

 

Seki Abstract  

 

Valev Abstract