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Displaying from Wednesday, November 21, 2018
 November 2018
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 (...)
Friday 24
16:30 - SEMINAR - Groups and Combinatorics Seminar: Alex Bors, 4pm May 24 in Weatherburn LT More Information
Speaker: Alex Bors (University of Western Australia)

Title: Words, permutations, and the nonsolvable length of a finite group

Time and place: 4pm Friday 24 May 2019, Weatherburn LT

Abstract: In group theory, the term “word” denotes any concatenation of variables and (...)

 June 2019
Thursday 20
16:00 - VISITING SPEAKER - Mathematics and Statistics Colloquium : Penalizing control volatility in nonlinear optimal control More Information
Abstract: Change is necessary in any dynamic environment, but there is always a cost incurred when implementing change; one of the most obvious is wear and tear on the physical components in a system. In the optimal control field, the cost of change is almost always ignored, and this can lead to “op (...)

 July 2019
Thursday 18
16:00 - SEMINAR - Mathematics and Statistics colloquium : Hyperspheres in hyperspace More Information
What would a beach look like in a different universe? How would sand flow in 4 or 5 dimensions? At the crossroad of mathematics, physics, and engineering, this talk will develop the numerical and technological tools required to answer those questions. Following the Discrete Element Method, widely (...)

 August 2019
Friday 02
16:00 - SEMINAR - Groups and Combinatorics Seminar: Phill Schultz, 4pm Aug 2 in Weatherburn LT More Information
Speaker: Phill Schultz (University of Western Australia)

Title: Actions of Aut(V) on linearly independent subsets of a vector space V

Time and place: 4pm Friday 02 Aug 2019, Weatherburn LT

Abstract: Let V be a finite dimensional rational vector space. The action of (...)
Thursday 22
16:00 - SEMINAR - Mathematics and Statistics colloquium : Convex surfaces of constant Gauss curvature and partially free boundaries More Information
Consider a pair of parallel planes in and a strictly convex closed curve laying on one of the planes. Is there a convex hypersurface of constant Gauss curvature such that it is trapped between the planes, the curve is on its boundary, and the surface strikes the other plane at given constant (...)
Friday 23
16:00 - SEMINAR - Groups and Combinatorics Seminar: Hassan Alavi, 4pm Aug 23 in Weatherburn LT More Information
Speaker: Hassan Alavi (Buali Sina University, Iran)

Title: On transitive automorphism groups of 2-designs

Time and place: 4pm Friday 23 Aug 2019, Weatherburn LT

Abstract: A 2-design with parameters (v,k,lambda) is an incidence structure consisting of a set of v (...)
Friday 30
16:00 - SEMINAR - Groups and Combinatorics Seminar: Carlisle King, 4pm Aug 30 in Weatherburn LT More Information
Speaker: Carlisle King (University of Western Australia)

Title: Edge-primitive 3-arc-transitive graphs

Time and place: 4pm Friday 30 Aug 2019, Weatherburn LT

Abstract: Let Gamma be a finite simple graph with G = Aut(Gamma). We say that Gamma is edge-primitive if G (...)


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