What's On at UWA

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) (...)

Time and place: 16:00 Friday 12 August in Weatherburn LT

Speaker: Shu-Jiao Song (UWA)

Title: On constructions of arc-transitive maps

Abstract: A map is a 2-cell embedding of a graph into a surface. An automorphism of a map is an automorphism of the underlying graph (...)

Time and place: 16:00 Friday 19 August in Weatherburn LT

Speaker: Don Taylor (The University of Sydney)

Title: Reflection subgroups of unitary reflection groups

Abstract: The usual notion of a reflection in Euclidean space has a natural analogue in vector spaces (...)

Everyone is warmly invited to our Mathematics and Statistics Colloquium.

Talk title: The Discovery of Janko's Sporadic Simple Groups. Talk abstract: In 1966, Zvonimir Janko published a paper which revolutionised finite group theory. The previous year, working as a Research Fellow at the (...)

Time and place: 16:00 Friday 26 August in Weatherburn LT

Speaker: Melissa Lee (UWA)

Title: Generalising hemisystems and relative hemisystems

Abstract: Segre determined in 1965 that the only nontrivial m-covers of H(3,q^2), q odd, have m=(q+1)/2. He named these (...)

Time and place: 16:00 Friday 2 September in Weatherburn LT

Speaker: Cheryl Praeger (UWA)

Title: Infinite permutation groups with all infinite normal subgroups transitive

Abstract: The "O'Nan-Scott approach" to describing structure for finite primitive (...)

Time and place: 16:00 Friday 9 September in Weatherburn LT

Speaker: Joanna Fawcett (UWA)

Title: Partial linear spaces with a primitive affine automorphism group of rank 3

Abstract: A partial linear space consists of a finite non-empty set P of points and a (...)

Everyone is warmly invited to our Mathematics and Statistics Colloquium.

Talk title: The random graph and its friends

Talk abstract: There is a countably infinite graph R (first explicitly constructed by Richard Rado) with the following remarkable property: If we choose a c (...)

Time and place: 16:00 Friday 16 September in Weatherburn LT

Speaker: Rosemary Bailey (St. Andrews)

Title: Circular designs balanced for neighbours at distances one and two

Abstract: We consider experiments where the experimental units are arranged in a circle or in (...)

Time and place: 16:00 Friday 23 September in Blakers LT

Speaker: Peter Cameron (St. Andrews)

Title: Idempotent generation and road closures

Abstract: This is part of a big project linking the properties of a transformation semigroup to those of the permutation group (...)