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Displaying from Friday, September 14, 2018
 September 2018
Friday 21
16:00 - SEMINAR - Groups and Combinatorics Seminar: Peter Vandendriessche, 4pm Sep 21 in Weatherburn LT More Information
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) (...)
Friday 28
16:00 - SEMINAR - Groups and Combinatorics Seminar: Barbara Baumeister, 4pm Sep 28 in Weatherburn LT More Information
Speaker: Barbara Baumeister (Universität Bielefeld)

Title: Non-crossing partitions in Coxeter and Artin groups

Time and place: 4pm Friday 28 Sep 2018, Weatherburn LT

Abstract: The talk will start with an introduction to non-crossing partitions, Coxeter and braid or (...)

 October 2018
Friday 05
16:00 - SEMINAR - Groups and Combinatorics Seminar: Carlisle King, 4pm Oct 5 in Weatherburn LT More Information
Speaker: Carlisle King (University of Western Australia)

Title: Generation of finite simple groups

Time and place: 4pm Friday 5 Oct 2018, Weatherburn LT

Abstract: Let G be a finite simple group. It is well-known that G is generated by a pair of elements – we say G (...)
Thursday 11
16:00 - SEMINAR - Mathematics and Statistics colloquium : Interface dynamics: new mechanisms of stabilization and destabilization and structure of flow fields More Information
Interfacial mixing and transport are non-equilibrium processes coupling kinetic to macroscopic scales. They occur in fluids, plasmas and materials, over celestial events to atoms. Grasping their fundamentals can advance a broad range of disciplines in science, mathematics, and engineering. This (...)
Friday 19
16:00 - SEMINAR - Groups and Combinatorics Seminar: Saul Freedman, 4pm Oct 19 in Weatherburn LT More Information
Speaker: Saul Freedman (University of Western Australia)

Title: p-groups related to exceptional Chevalley groups

Time and place: 4pm Friday 19 Oct 2018, Weatherburn LT

Abstract: In 1978, Bryant and Kovács proved that if H is a subgroup of the general linear group GL( (...)

 November 2018
Thursday 01
16:00 - SEMINAR - Mathematics and Statistics colloquium : Generalisations and variations of the Monty Hall Problem More Information
The Monty Hall problem is a probability puzzle based on an American television game show. Some generalisations of the original problem are considered here: - The probability distribution is generalised from equal likelihood to an arbitrary known prior distribution, with the number of doors changed (...)
Friday 02
16:00 - SEMINAR - Groups and Combinatorics Seminar: Kyle Rosa, 4pm Nov 02 in Weatherburn LT More Information
Speaker: Kyle Rosa (University of Western Australia)

Title: Bounds for Semiprimitive Permutation Groups

Time and place: 4pm Friday 2 Nov 2018, Weatherburn LT

Abstract: Semiprimitive groups are permutation groups for which every normal subgroup is either transitive (...)
Thursday 22
16:00 - SEMINAR - Mathematics and Statistics colloquium : Nonlocal equations, atom dislocation dynamics in crystals, and chaotic orbits More Information
In this talk, we introduce some basics of nonlocal equations, with some applications in mind coming from physics and material sciences. In particular, the equation taken into account comes from a model, developed by Rudolf Peierls and Frank Nabarro, that describes the edge dislocation of atoms in (...)
Friday 23
16:00 - SEMINAR - Groups and Combinatorics Seminar: Marvin Krings, 4pm Nov 23 in Robert Street LT More Information
Speaker: Marvin Krings (RWTH, Aachen)

Title: The p-part of the order of an almost simple group of Lie type

Time and place: 4pm Friday 23 Nov 2018, Robert Street LT (not Weatherburn LT)

Abstract: Primitive permutation groups are fundamental building blocks in the (...)

 February 2019
Friday 01
16:00 - SEMINAR - Groups and Combinatorics Seminar: Cai Heng Li, 4pm Feb 01 More Information
Speaker: Cai Heng Li (Southern University of Science and Technology, Shenzhen, PRC)

Title: Erdös-Ko-Rado Problem for Permutation Groups

Time and place: 4pm Friday 01 Feb 2019, Weatherburn LT

Abstract: A classical result of Erdös-Ko-Rado in extremal set theory is (...)
Tuesday 12
16:00 - SEMINAR - Groups and Combinatorics Seminar: Mariagrazia Bianchi, 4pm Feb 12 More Information
Speaker: Mariagrazia Bianchi (Università degli Studi di Milano)

Title: Conjugacy class sizes in finite groups: variations on the theme

Time and place: 4pm Tuesday 12 Feb 2019, Weatherburn LT

Abstract: The study of conjugacy class sizes goes back to the beginning of (...)
Friday 15
16:00 - SEMINAR - Groups and Combinatorics Seminar: Gabriel Verret, 4pm Feb 15 More Information
Speaker: Gabriel Verret (University of Auckland)

Title: An update on the Polycirculant Conjecture

Time and place: 4pm Friday 15 Feb 2019, Robert Street LT

Abstract: One version of the Polycirculant Conjecture is that every finite vertex-transitive digraphs admits a (...)
Thursday 21
16:00 - SEMINAR - Mathematics and Statistics colloquium : Particle modelling applied to industrial and biophysical problems More Information
Particle methods have capabilities that particularly suit numerical simulation of complex phenomena involved in industrial and biophysical application domains. The two core methods used in this talk are DEM (Discrete Element Method) and SPH (Smoothed Particle Hydrodynamics). Coupling of these (...)

 March 2019
Friday 08
16:00 - SEMINAR - Groups and Combinatorics Seminar: Calin Borceanu, 4pm March 08 in Weatherburn LT More Information
Speaker: Calin Borceanu (UWA)

Title: Searching for partial congruence partitions in groups of order p^8

Time and Place: 4pm Friday 08 Mar 2019, Weatherburn LT

Abstract: A partial congruence partition (or PCP) of a group is defined simply as a set of pairwise (...)
Tuesday 12
16:00 - SEMINAR - Groups and Combinatorics Seminar: Sabina Pannek, 4pm March 12 More Information
Speaker: Sabina Pannek

Title: Elements with large irreducible submodules contained in maximal subgroups of the general linear group

Time and place: 4pm Tuesday 12 Mar 2019, Blakers LT

Abstract: We refer to an element of the finite general linear group GL(V) as being (...)

 April 2019
Friday 12
16:00 - SEMINAR - Groups and Combinatorics Seminar: Michael Giudici, 4pm Apr 12 in Weatherburn LT More Information
Speaker: Michael Giudici (University of Western Australia)

Title: Arc-transitive bicirculants

Time and place: 4pm Friday 12 Apr 2019, Weatherburn LT

Abstract: A graph on 2n vertices is a bicirculant if it admits an automorphism that is a permutation with two cycles (...)
Wednesday 17
16:00 - SEMINAR - Groups and Combinatorics Seminar: Martin Liebeck, 4pm Apr 17 in Woolnough LT More Information
Speaker: Martin Liebeck (Imperial College London)

Title: Girth, words and diameters of Cayley graphs

Time and place: 4pm Wednesday 17 Apr 2019, Woolnough LT

Abstract: The girth of a graph is the minimal length of a cycle in the graph. Finding regular graphs with (...)

 May 2019
Friday 03
16:00 - EVENT - Groups and Combinatorics Seminar: Emilio Pierro, 4pm May 3 in Weatherburn LT More Information
Speaker: Emilio Pierro (University of Western Australia)

Title: The 2-transitive permutation representation of the small Ree groups

Time and place: 4pm Friday 03 May 2019, Weatherburn LT

Abstract: Given a group G, the question of which subsets S of G generate G is (...)
Friday 10
16:00 - SEMINAR - Groups and Combinatorics Seminar: Gordon Royle, 4pm May 10 in Weatherburn LT More Information
Speaker: Gordon Royle (University of Western Australia)

Title: From Lehman Matrices To (Im)Perfect Graphs

Time and place: 4pm Friday 10 May 2019, Weatherburn LT

Abstract: A pair (A,B) of square 0/1 matrices is called a Lehman pair if AB^T = J + k I where J is the (...)
Friday 17
16:00 - SEMINAR - Groups and Combinatorics Seminar: Cheryl Praeger, 4pm May 17 in Weatherburn LT More Information
Speaker: Cheryl E Praeger (University of Western Australia)

Title: Limited geodesic transitivity for finite regular graphs

Time and place: 4pm Friday 17 May 2019, Weatherburn LT

Abstract: Joint work with Wei Jin.

For vertex transitive graphs, transitivity (...)


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