# 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.

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.

## Past events

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

04

Apr

2017

Speaker: Will Donovan, University of Tokyo

Abstract: Kapranov and Schechtman recently gave an approach to defining perverse sheaves of categories, or perverse schobers.

21

Mar

2017

Speaker: David Penneys (Ohio State)

The notion of an algebra makes sense in any monoidal category C4.

28

Feb

2017

Speaker: Dr Vigleik Angeltveit (MSI/ANU)

I will try to explain how the Norm map shows up in some different parts of mathematics like in equivariant stable homotopy groups and Witt vectors.

21

Feb

2017

Speaker: Professor Peter Tingley (Loyola University Chicago)

Lusztig's canonical basis is a fairly miraculous object that, among other things, gives a chosen basis for every finite dimensional irreducible representati

13

Dec

2016

Speaker: Hafiz Khusyairi (ANU)

Traditionally, the twisted inverse image functor of Grothendieck duality is defined by means of compactification on a class of morphisms between noetherian

27

Oct

2016

Speaker: Ezra Getzler (Northwestern)

The Batalin-Vilkovisky formalism is a theory of gauge symmetry in derived geometry which takes Nöther’s formalism for classical field theories off-shell (th

25

Oct

2016

Speaker: Jesse Burke (MSI/ANU)

I'll start by giving a gentle introduction to $A$-infinity algebras and their Hochschild cochains, using a rudimentary graphical calculus.

11

Oct

2016

Speaker: A/Prof. Scott Morrison (MSI, ANU)

Every tensor category has a Drinfeld centre. In nice enough cases, this is a modular tensor category.