Home | Department of Mathematics

Computing in Prague – Prof. Dzhafarov On His Fulbright Experience

November 12, 2021

In Memoriam: Professor Emeritus Murray Wachman

October 1, 2021

Professor Emeritus Murray Wachman passed away on September 29, 2021, after a serious illness of several weeks duration. His funeral was held on October 1 at 9 a.m. at the Weinstein Mortuary at 640 Farmington Avenue in Hartford. He was 90 years old. Murray was born on February 1, 1931 in Tel Aviv which then […]

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Welcoming New Students and New Faculty

August 26, 2021

Welcome back, Huskies! Welcome to the Fall 2021 semester, and to a new academic year! This semester, we are joined by a class of 10 new PhD students and 10 new MS students! We are very pleased to welcome new faculty joining our ranks! These include Julia Bernatska (Lecturer), Andreas Malmendier (Associate Professor), and Andrew […]

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UConn’s B.R.A.I.N. Summer Camp Helping Kids Overcome Math Learning Difficulties

July 27, 2021

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Professor Cardetti Receives NSF Grant to Help Develop Mathematics Teacher Leaders for Connecticut

June 11, 2021

Professor Fabiana Cardetti has been awarded an NSF grant to support the project Developing Mathematics Teacher Leaders for Connecticut Alliance School Districts with Co-PIs Megan Staples and Gladis Kersaint from the Neag School of Education and in partnership with the State Department of Education. The project aims to serve the national interest by developing highly […]

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Dec 8 Algebra Seminar
Title
Speaker11:15am

Algebra Seminar
Title
Speaker

Wednesday, December 8th, 2021

11:15 AM - 12:05 PM

Storrs Campus
MONT313

TBA

Contact Information: mihai.fulger@uconn.edu
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Dec 9 Mathematics Colloquium
Uniqueness Of Certain Cylindrical Tangent Cones
Gabor Szekelyhidi (Notre Dame)3:30pm

Mathematics Colloquium
Uniqueness Of Certain Cylindrical Tangent Cones
Gabor Szekelyhidi (Notre Dame)

Thursday, December 9th, 2021

03:30 PM - 04:30 PM

Storrs Campus
Online

An important question about minimal surfaces is the
uniqueness of their tangent cones. Of particular difficulty are
tangent cones with non-isolated singular sets, such as cylindrical
tangent cones of the form C x R. I will talk about a uniqueness result
for the tangent cone C x R where C is the Simons cone over S^3 x S^3,
extending a result of Leon Simon on such cylindrical tangent cones.
The main new difficulty is that the cone we consider is not
integrable, and so we need a version of the Lojasiewicz-Simon
inequality that can be used in the setting of tangent cones with
non-isolated
singularities.

Contact Information: Kyu-Hwan Lee
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Dec 10 Logic Colloquium: S. Florio, S. Shapiro, E. Snyder: Definitional Equivalence And Plural Logic 2:30pm

Logic Colloquium: S. Florio, S. Shapiro, E. Snyder: Definitional Equivalence And Plural Logic

Friday, December 10th, 2021

02:30 PM - 04:00 PM

Storrs Campus
online

Join us for the Logic Colloquium for a talk by Salvatore Florio, Stewart Shapiro, and Eric Snyder on definitional equivalence and plural logic.

All welcome.

Contact Information: logic@uconn.edu
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Dec 10 Analysis Learning Seminar
An Introduction To Analysis On Graphs
Christopher Hayes (UConn)3:30pm

Analysis Learning Seminar
An Introduction To Analysis On Graphs
Christopher Hayes (UConn)

Friday, December 10th, 2021

03:30 PM - 04:30 PM

Storrs Campus
Monteith 313

Many advanced concepts in analysis can be quickly understood in the graph case. It is an interpretation of linear algebra from a certain functional analytic viewpoint, rather than the usual vectors-in-real-space viewpoint. It is especially helpful to keep this example in mind while taking analysis and stochastic processes courses. In this talk we will go over:

* Random walks on graphs, and the connection between random walks and analysis.
* Harmonic functions on discrete spaces, and the graph Laplacian.
* Direct and numerical approaches to solving these problems, namely,
** The linear algebra direct approach
** The energy-minimization direct approach (which is equivalent, and I will show why)
** The Monte Carlo method
** The method of relaxations
* Discrete-space Fourier analysis and Poisson's equation.

The talk is intended for first and second year graduate students as well as advanced undergraduates. No prior knowledge of Fourier analysis, PDEs, or probability theory is assumed.

Contact Information: Matthew Badger (matthew.badger@uconn.edu)
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Dec 17
Actuarial Science Seminar
A Dynamic Credibility Model Using Hawkes Processes
Himchan Jeong (Simon Fraser University)11:00am

Actuarial Science Seminar
A Dynamic Credibility Model Using Hawkes Processes
Himchan Jeong (Simon Fraser University)

Friday, December 17th, 2021

11:00 AM - 12:00 PM

Storrs Campus
MONT 214

Abstract: This paper proposes a dynamic credibility model for claim frequency that combines the advantages of Hawkes processes and generalized linear models (GLMs). The cumulative claim frequency of a policy is modeled by a self-excited Hawkes process with exponential decay, which captures the insurance practice in ratemaking that a recent claim should have a bigger impact on the credibility premium than an outdated claim. The proposed model yields a closed-form expression of the posterior expectation, and its calibrations are simple. The empirical results show that the proposed dynamic credibility model outperforms the standard Poisson GLM in both in-sample goodness-of-fit and out-of-sample prediction.

Speaker's short bio: Himchan is an assistant professor in the Department of Statistics & Actuarial Science at Simon Fraser University (Canada). He obtained his Ph.D. in 2020 under the supervision of Emil Valdez at the University of Connecticut. His current research interest is predictive modeling for ratemaking and reserving of property and casualty insurance. Please see his website for more information: https://ssauljin.github.io/hjeong/

Contact Information: bin.zou@uconn.edu (Bin Zou)
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Department of Mathematics

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Uconn AMS Presents: Integration Bee 2021

Mathematics Continued 2021

Celebrating Women in Mathematics

News & Achievements

Computing in Prague – Prof. Dzhafarov On His Fulbright Experience

In Memoriam: Professor Emeritus Murray Wachman

Welcoming New Students and New Faculty

UConn’s B.R.A.I.N. Summer Camp Helping Kids Overcome Math Learning Difficulties

Professor Cardetti Receives NSF Grant to Help Develop Mathematics Teacher Leaders for Connecticut

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