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Today:
Financial Mathematics Seminar
A review of principal-agent problem
    - Arash Fahim, FSU
Time: 3:35pm Room: Lov 201
Abstract/Desc: The principal-agent problem is a mathematical framework for the moral hazards problem. While the discrete-time problem has been extensively studied, the continuous-time problem is only been solved partially in 2008 in the seminal work of Yuri Sannikov. The mathematical correctness of Sannikov's work has only been partially established in the last couple of years. In this talk, we review the problem and show how it is related to the theory of stochastic optimal control and backward stochastic differential equations.

Biomathetics Seminar [url]
Circle Packing Cortical Surfaces
    - Carolyn Eady, Department of Mathematics, FSU
Time: 9:30am Room: LOV 200
Abstract/Desc: Circle packing is a quasi-conformal method used with triangulations. By superimposing a triangulated mesh on the cortical surface, we are able to apply this method to create cortical "flat" maps, or maps to constant curvature surfaces. Using this approach allows us to measure conformally invariant metrics on the surface, including some which maintain properties of angles previously neglected in cortical mappings. In this talk, I will explain theory relevant to circle packing, explain different types of circle packings and begin to delve into some of the invariant properties (which will be discussed further in a follow-up talk on this subject).

Algebra seminar
Characteristic classes and Geometry Invariants of projective varieties II
    - Xiping Zhang, FSU
Time: 3:35pm Room: 104 Love
Abstract/Desc: In this talk I will give a brief summary of the relation between some interesting characteristic classes and geometry invariants for projective varieties.

Entries for this week: 11
Monday February 19, 2018

Math Is Fun! Seminar [url]
Math in Nature
    - Dr. Monica K. Hurdal, Department of Mathematics, FSU
Time: 3:35pm Room: LOV 200

Tuesday February 20, 2018

Topology and Geometry
The Cauchy Integral Formula on the Octonions
    - Ben Prather, FSU Math
Time: 3.35PM Room: 201
Abstract/Desc: We will review the octonion algebra, including how to use it to define a parallelization of S^7. We will then proceed to show that an octonion valued function as a point can be recovered by an integral operator along of the boundary of a domain with this point in its interior and smooth boundary, up to an associator. We show that for one choice of parenthesis this associator vanishes.

Wednesday February 21, 2018

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

Profs talk just for students [url]
    - Jerry Magnan, FSU Math
Time: 2:30 Room: 200 LOV
Abstract/Desc: All graduate students are invited to hear professors chat about their research interests and expertise; after the short talks they invite interested students follow up at their offices. PURE and ACM graduate students in their first year may be enrolled as mat5933 and often attend all talks; this talk is required for ACM first year students.

Doctoral Candidacy Exam
Simulation and Goodness-of-Fit Tests of Copulas
    - Yiran Chen, FSU
Time: 2:15 PM Room: 204B

Thursday February 22, 2018

Financial Mathematics Seminar
A review of principal-agent problem
    - Arash Fahim, FSU
Time: 3:35pm Room: Lov 201
Abstract/Desc: The principal-agent problem is a mathematical framework for the moral hazards problem. While the discrete-time problem has been extensively studied, the continuous-time problem is only been solved partially in 2008 in the seminal work of Yuri Sannikov. The mathematical correctness of Sannikov's work has only been partially established in the last couple of years. In this talk, we review the problem and show how it is related to the theory of stochastic optimal control and backward stochastic differential equations.

Biomathetics Seminar [url]
Circle Packing Cortical Surfaces
    - Carolyn Eady, Department of Mathematics, FSU
Time: 9:30am Room: LOV 200
Abstract/Desc: Circle packing is a quasi-conformal method used with triangulations. By superimposing a triangulated mesh on the cortical surface, we are able to apply this method to create cortical "flat" maps, or maps to constant curvature surfaces. Using this approach allows us to measure conformally invariant metrics on the surface, including some which maintain properties of angles previously neglected in cortical mappings. In this talk, I will explain theory relevant to circle packing, explain different types of circle packings and begin to delve into some of the invariant properties (which will be discussed further in a follow-up talk on this subject).

Algebra seminar
Characteristic classes and Geometry Invariants of projective varieties II
    - Xiping Zhang, FSU
Time: 3:35pm Room: 104 Love
Abstract/Desc: In this talk I will give a brief summary of the relation between some interesting characteristic classes and geometry invariants for projective varieties.

Friday February 23, 2018

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

Profs talk just for students [url]
    - Nick Cogan, FSU Math
Time: 2:30 Room: 200 LOV
Abstract/Desc: All graduate students are invited to hear professors chat about their research interests and expertise; after the short talks they invite interested students follow up at their offices. PURE and ACM graduate students in their first year may be enrolled as mat5933 and often attend all talks; this talk is required for PURE and ACM first year students.

Mathematics Colloquium [url]
Recent Advances on the Glass Problem
    - Patrick Charbonneau, Duke University
Time: 3:35 pm Room: 101 LOV
More Information
Abstract/Desc: Using mathematical physics tools and methods adapted from the study of spin glasses, a description hard sphere glasses in the high-dimensional limit has recently been conjectured. In addition to providing a reliable framework with which to compare numerical and other experiments, this treatment predicts the existence, deep in the glass phase, of a novel phase transition, a so-called Gardner transition. This transition signals the emergence of a complex landscape composed of a marginally stable hierarchy of sub-basins. In this talk, I will present an overview of our recent theoretical and numerical advances in capturing and characterizing this novel materials feature. I will also discuss some of the key finite-dimensional corrections to this description and their connection to open problems in stochastic topology.


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