What's On at UWA

Time and place: 11:00 Tuesday 9 February in Weatherburn LT

Speaker: Dillon Mayhew (Victoria University of Wellington)

Title: Finite vs. infinite fields in matroid representation

Abstract: We can think of a matroid as an abstraction of a discrete configuration of (...)

Time and place: 11:00 Tuesday 23 February in Blakers LT

Speaker: Alexander Bors (University of Salzburg)

Title: Finite groups with an automorphism inverting, squaring or cubing a non-negligible fraction of elements

Abstract: There are various results in the (...)

Time and place: 16:00 Friday 4 March in Weatherburn LT

Speaker: Joy Morris (University of Lethbridge)

Title: Automorphisms of circulant graphs

Abstract: Determining the full automorphism group of a graph is a hard problem with a long history. I will discuss some of (...)

Time and place: 16:00 Friday 11 March in Weatherburn LT

Speaker: Binzhou Xia (Peking University)

Title: 2-arc-transitive Cayley graphs of soluble groups

Abstract: Classifying certain classes of 2-arc-transitive graphs has received considerable attention. There have (...)

Time and place: 16:00 Friday 18 March in Weatherburn LT

Speaker: Gabriel Verret (UWA)

Title: Asymptotic enumeration of vertex-transitive and Cayley graphs

Abstract: I am interested in determining the number f(n) of graphs of order n from various "symmetric" (...)

Time and place: 11:00 Friday 1 April in MLR1

Speaker: Steven Noble (Brunel University London)

Title: Counting labelled delta-matroids

Abstract: Delta-matroids were introduced and studied by Bouchet in the 1980s, but have largely been ignored until the last few years (...)

Title: Mathematics and Statistics of Scuba Diving

Abstract: Scuba divers are trained to follow procedures that keep them safe while diving and afterward. Surprisingly, these safety measures are based on just a handful of simple mathematical and statistical principles, which will be (...)

Time and place: 16:00 Friday 8 April in Weatherburn LT

Speaker: Kyle Rosa (UWA)

Title: Invariable generation of permutation groups

Abstract: An invariable generating set for a group is a collection of conjugacy classes from which any choice of representatives form a (...)

Time and place: 16:00 Friday 15 April in Weatherburn LT

Speaker: Ty Ghaswala (University of Waterloo)

Title: The superelliptic covers and the lifting mapping class group

Abstract: Given a finite sheeted (possibly branched) covering space over a surface, one can ask (...)

Time and place: 16:00 Friday 22 April in Blakers LT

Speaker: Cai-Heng Li (UWA)

Title: Relative elementary groups and their applications

Abstract: Motivated by some problems about Cayley graphs and permutation groups, we introduce and study a class of finite (...)

Time and place: 16:00 Friday 29 April in Weatherburn LT

Speaker: Jesse Lansdown (UWA)

Title: Bruck nets and partial Sherk planes

Abstract: In Bachmann’s Aufbau der Geometrie aus dem Spiegelungsbegriff, it was shown that a finite metric plane is a Desarguesian (...)

Time and place: 16:00 Friday 6 May in Weatherburn LT

Speaker: Norman Do (Monash University)

Title: Counting curves on surfaces

Abstract: Choose an even number of points on the boundary of a surface. How many ways are there to pair up these points with disjoint (...)

Time and place: 16:00 Friday 13 May in Blakers LT

Speaker: John Bamberg (UWA)

Title: Hemisystem-like structures in finite geometries

Abstract: This is a longer version of the talk I will be giving at “New Directions in Combinatorics” (Singapore). Beniamino (...)

Time and place: 16:00 Friday 20 May in Weatherburn LT

Speaker: Luke Morgan (UWA)

Title: The Weiss Conjecture and inspirations thereof

Abstract: In 1979 Richard Weiss made a beautiful conjecture: There exists a function f on the natural numbers such that, for each (...)

Time and place: 16:00 Friday 27 May in Weatherburn LT

Speaker: Phill Schultz (UWA)

Title: What do you do when Krull-Schmidt fails?

Abstract: I present some old and some new results on partitions of positive integers and direct decompositions of torsion-free (...)

Title: Galois and his groups

Abstract: When Galois invented groups they were very different from the structures taught and learned and loved in undergraduate courses at UWA and other modern universities. My purpose in this lecture will be to explain the differences and calibrate (...)

Time and place: 15:00 Friday 3 June in Weatherburn LT

Speaker: Peter Neumann (Oxford)

Title: TPP subgroup triples in finite groups

Abstract: About a dozen years ago, Henry Cohn and Christopher Umans proposed a group-theoretic attack on a famous problem in the (...)

The Pawsey Supercomputing Centre and The University of Western Australia would like to invite you to the Pawsey Roadshow, an event showcasing services and resources that Pawsey provides to researchers across Australia.

This free event will see researchers presenting about their (...)

Time and place: 16:00 Friday 10 June in Blakers LT

Speaker: Gordon Royle (UWA)

Title: The characteristic polynomial of a graph

Abstract: The characteristic polynomial of a graph G is the characteristic polynomial of its adjacency matrix.  While there are many (...)

Time and place: 16:00 Friday 5 August in Weatherburn LT

Speaker: John Bamberg (UWA)

Title: Hemisystem-like structures in finite geometries

Abstract: This is a longer version of the talk I will be giving at “New Directions in Combinatorics” (Singapore) (...)