# Algebra and Topology Seminar

## Contact

The Algebra and Topology seminar invites speakers from a broad spectrum of areas, including algebraic and differential geometry, algebraic topology, low-dimensional topology, representation theory, quantum algebra, and number theory.

There is also a Google calendar for the seminar, which typically lists scheduled speakers in advance of their posting here.

24

Oct

2017

Speaker: Joan Licata (ANU/MSI)

Many approaches to studying 3-manifolds start by cutting the manifold into simpler pieces. In the context of contact geometry, I'll describe how to decompo

31

Oct

2017

Speaker: Felipe Voloch (U. of Canterbury)

The task of factoring polynomials modulo a prime has a satisfactory, usually efficient, solution which depends on random choices and can be slow if we are v

## Past events

10

Oct

2017

Speaker: Scott Morrison (MSI)

In an attempt to explore part of the landscape of tensor categories, with Emily Peters and Noah Snyder I've been investigating "small" tensor categories gen

26

Sep

2017

Speaker: Anthony Henderson (U. of Sydney)

Let $G$ be a simply connected semisimple algebraic group over $\mathbb{C}$.

19

Sep

2017

Speaker: Amnon Neeman (ANU)

In a 2003 paper Bondal and Van den Bergh proved that, if X is a scheme smooth over a field k, then the category D^b(Coh X) is strongly generated.

12

Sep

2017

Speaker: Andrew Schopieray (UNSW)

Braided fusion categories encode data from such diverse areas of
mathematics as quantum computation, representation theory, topological

22

Aug

2017

Speaker: Ralph Buchholz (ANU)

We consider the problem of finding triangles with rational sides medians and area. We see how far we can get using the theory of curves and surfaces.

25

Jul

2017

Speaker: Boris Khesin (Toronto)

The Gauss linking number of two curves in the three-space has a complex counterpart.

28

Jun

2017

Speaker: Nora Ganter (University of Melbourne)

I will discuss the notion of categorical group and it's relationship to loop groups in a number of examples.

20

Jun

2017

Speaker: Stuart Mitchell (MSI/ANU)

A graphical calculus will be developed for the algebra of shifted symmetric functions defined by Okounkov and Olshanski, using the Heisenberg categorificati

02

May

2017

Speaker: Slawomir Klimek (Indiana University–Purdue University Indianapolis)

Quantum mechanical structures associated to a pair of pants play prominent role in conformal and topological quantum field theories.

11

Apr

2017

Speaker: Behrouz Taji (Northwestern University)

Abstract: By proving Calabi's conjecture, Yau proved that the first and second Chern classes of a compact complex manifold with ample canonical bundle encod