What's On at UWA

Speaker: David Roberson (Technical University of Denmark)

Title: Vector Colorings of the Categorical Product of Graphs

Time and place: 16:00 Friday 06/04/2018 in Weatherburn LT

Abstract:In 1966 Hedetniemi conjectured the that chromatic number of the categorical (...)

Fluid models are widely employed in many fields of science, ranging from astronomy and physics to biology and chemistry. The fundamental principle, and motivation, behind fluid models is to provide an effective macroscopic representation of the collective behaviour arising from a large number of (...)

Speaker: Colva Roney-Dougal (University of St. Andrews)

Title: Random groups

Time and place: 16:00 Friday 13/04/2018 in Weatherburn LT

Abstract: What does a random group look like? To answer this question, we first need to specify which class of groups we are (...)

Speaker: Alex Bors (University of Western Australia and University of Salzburg)

Title: Finite groups with a large automorphism orbit

Time and place: Fri 27 Apr, 2018 in Weatherburn LT

Abstract and Slides: http://www.maths.uwa.edu.au/~glasby/GroupsAndCombinatoricsSemi (...)

Despite Statistics being the traditional field for data analysis, people with formal statistical training form a relatively small segment of the Data Science community. Indeed, it is easy to conclude that the influence of Statistics on the field is waning: for instance, Python is slightly more (...)

Speaker: Cheryl Praeger (UWA)

Title: Derangement action digraphs and graphs

Time and place: Fri 04 May, 2018 in Weatherburn LT

Abstract: Derangement action digraphs are closely related to group action digraphs, which were introduced by Annexstein, Baumslag and (...)

Speaker: Daniel Harvey (University of Western Australia)

Title: A cycle of maximum order in a graph of high minimum degree has a chord

Time and place: 4pm 11 May 2018, Weatherburn LT

Abstract: A long standing conjecture of Thomassen states that every cycle of (...)

Abstract: There is a striking connection between the zeroes of the Riemann zeta-function and the distribution of the primes. In this talk I shall mention some analytic properties of the zeta-function that when known explicitly enable one to estimate, very accurately, the size of the n-th prime (...)

Speaker: Carmen Amarra (University of Western Australia and University of the Philippines)

Title: Quotient-complete arc-transitive latin square graphs

Time and place: 4pm 18 May 2018, Weatherburn LT

Abstract: This talk deals with an open problem in my PhD thesis (...)

Speaker: Emilio Pierro (University of Western Australia)

Title: Finite simple quotients of mapping class groups

Time and place: 4pm Friday 25 May 2018, Weatherburn LT

Abstract: A natural approach to studying an infinite group is to try to understand its finite (...)

Speaker: Luke Morgan (Univ. of Western Australia)

Title: The Distinguishing Number of Finite Permutation Groups

Time and place: 4pm Friday 15 Jun 2018, Robert Street LT (note unusual venue)

Abstract: The distinguishing number of a permutation group G acting on a set (...)

Speaker: Gabriel Verret (Univ. of Auckland)

Title: Compatible local actions in arc-transitive digraphs

Time and place: 4pm Friday 22 Jun 2018, Blakers LT

Abstract: Given a G-arc-transitive graph, the local action is the permutation group induced by a vertex-stabilise (...)

Speaker: John Sheekey (University College Dublin)

Title: Subspaces of Matrices over Finite Fields with Restricted Rank

Time and place: 4pm Friday 20 Jul 2018, Weatherburn LT

Abstract: Rank-metric codes are codes consisting of matrices over a finite field, with the (...)

Speaker: Phill Schultz (University of Western Australia)

Title: The curious incident of the Leningrad mathematicians

Time and place: 4pm Friday 27 Jul 2018, Weatherburn LT

Abstract: The solution of a famous Sherlock Holmes mystery hinges on the fact that none of the (...)

Speaker: Gordon Royle (University of Western Australia)

Title: Online Collaborative LaTeX Authoring with Overleaf

Time and place: 4pm Friday 03 Aug 2018, Weatherburn LT

Abstract: This seminar is in the (very) occasional CMSC Technical Seminar Series covering useful (...)

Graphs (also called networks) with a high degree of symmetry are particularly nice objects to study mathematically. When studying the symmetries of a graph it is often useful to look at the local symmetries, that is, those that fix a particular vertex.  An important question then becomes whether (...)

Speaker: Jesse Lansdown (University of Western Australia/RWTH Aachen)

Title: Hemisystems in Finite Geometries

Time and place: 4pm Friday 17 Aug 2018, Weatherburn LT

Abstract: Given an incidence geometry Γ with elements P called points, and elements L (...)

Speaker: Cheryl E Praeger (University of Western Australia)

Title: Structures invariant under maximal subgroups of symmetric groups: a more geometrical O’Nan-Scott Theorem

Time and place: 4pm Friday 24 Jul 2018, Weatherburn LT

Abstract: Maximal intransitive and (...)

The fractional Laplacian is a nonlocal operator naturally arising in several branches of pure and applied mathematics. It presents intriguing features and possesses a great flexibility to a number of applications in physics, biology, numerics and finance. After briefly discussing the basics of this (...)

Speaker: Peter Vandendriessche (Ghent University)

Title: Classification of hyperovals and KM-arcs in small projective planes

Time and place: 4pm Friday 21 Sep 2018, Weatherburn LT

Abstract: Hyperovals (resp. KM-arcs) are point sets in PG(2,q) (resp. in AG(2,q)^D) (...)