### Seminars for Pure Mathematics

**Spring 2018**

Mar 22 |

Yaineli Valdes (FSU) |

A (Very) Short Introduction to K-Theory |

Algebra seminar |

Time: 3:35pm |

Location: 104 Love |

K-theory is a very large, useful subject with applications in many areas of mathematics. Vaguely speaking, it is very useful for classifying invariants and it can also be seen as a generalization of l... More |

Mar 15 |

Yaineli Valdes (FSU) |

A (Very) Short Introduction to K-Theory |

Algebra seminar |

Time: 3:35pm |

Location: 104 Love |

K-theory is a very large, useful subject with applications in many areas of mathematics. Vaguely speaking, it is very useful for classifying invariants and it can also be seen as a generalization of... More |

Mar 8 |

Ben Prather (FSU) |

Why not sedenions? - II |

Algebra seminar |

Time: 3:35pm |

Location: 104 Love |

Various generalizations of the octonions will be presented, and difficulties that arise in higher dimension explored. In particular, any two octonions generate a quaternionic sub algebra. However, th... More |

Mar 6 |

John Bergschneider (FSU Math) |

Fundamental groups of 3-Manifolds with Real Projective Plane Category 2 |

Topology and Geometry |

Time: 3.35PM |

Location: 201 |

A subset W of a Manifold M is k-contractible if the inclusion factors homotopically through k, where k is a cw-complex of dimension lower then M. The k-category of a manifold is the smallest number o... More |

Mar 1 |

Ben Prather (FSU) |

Why not sedenions? |

Algebra seminar |

Time: 3:35pm |

Location: 104 Love |

Various generalizations of the octonions will be presented, and difficulties that arise in higher dimension explored. In particular, any two octonions generate a quaternionic sub algebra. However, th... More |

Feb 27 |

Braulio Molina Gonzalez (FSU Math) |

Discrete Dynamical Systems and Hyperbolic Fixed Points |

Topology and Geometry |

Time: 3.35PM |

Location: 201 |

In this talk I will introduce some the basic concepts in the study of the qualitative theory of dynamical systems. After that I will move into the setting of discrete dynamical system ... More |

Feb 22 |

Xiping Zhang (FSU) |

Characteristic classes and Geometry Invariants of projective varieties II |

Algebra seminar |

Time: 3:35pm |

Location: 104 Love |

In this talk I will give a brief summary of the relation between some interesting characteristic classes and geometry invariants for projective varieties. |

Feb 20 |

Ben Prather (FSU Math) |

The Cauchy Integral Formula on the Octonions |

Topology and Geometry |

Time: 3.35PM |

Location: 201 |

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 integra... More |

Feb 15 |

Xiping Zhang (FSU) |

Characteristic classes and Geometry Invariants of projective varieties |

Algebra seminar |

Time: 3:35pm |

Location: 104 Love |

In this talk I will give a brief summary of the relation between some interesting characteristic classes and geometry invariants for projective varieties. |

Feb 13 |

Jakob Moeller-Andersen (FSU) |

The Motion of a Flag |

Topology and Geometry |

Time: 3.35PM |

Location: 201 |

We derive new equations for the idealized motion of a flag on a pole in 3-space, viewed as an unstretchable piece of fabric with no friction and ignoring self-collisions. Geometrically the flag repres... More |

Feb 8 |

Michael Niemeier (FSU) |

Simplicial Principal Fibrations II |

Algebra seminar |

Time: 3:35pm |

Location: 104 Love |

One way to define a central extension of simplicial groups is by saying it a short exact sequence of simplicial groups so that level-wise it is a central extension of groups. From this definition we w... More |

Feb 1 |

Michael Niemeier (FSU) |

Simplicial Principal Fibrations |

Algebra seminar |

Time: 3:35pm |

Location: 104 Love |

One way to define a central extension of simplicial groups is by saying it a short exact sequence of simplicial groups so that level-wise it is a central extension of groups. From this definition we w... More |

Jan 25 |

Ivan Martino (Northeastern University) |

Algebraic Structures related to Matroid Theory |

Algebra seminar |

Time: 3:35pm |

Location: 104 Love |

In this talk I will describe certain algebraic structures related to Matroid Theory. After defining a matroid over a ring, I will focus on matroids over a field k and matroids over the integers... More |

Jan 18 |

(FSU) |

Organizational Meeting |

Algebra seminar |

Time: 3:35pm |

Location: 104 Love |