
Displaying from Friday, July 20, 2018

July 2018

Friday 20 
16:00  SEMINAR  Groups and Combinatorics Seminar: John Sheekey, 4pm Friday 20 July in Weatherburn LT

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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: Rankmetric codes are codes consisting of matrices over a finite field, with the (...)

Friday 27 
16:00  SEMINAR  Groups and Combinatorics Seminar: Phill Schultz, 4pm Friday 27 July in Weatherburn LT

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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 (...)


August 2018

Friday 03 
16:00  EVENT  Groups and Combinatorics Seminar: Gordon Royle, 4pm Aug 3 in Weatherburn LT

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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 (...)

Thursday 16 
16:00  SEMINAR  Mathematics and Statistics colloquium : Bounding the number of symmetries of a graph

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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 or (...)

Friday 17 
16:00  SEMINAR  Groups and Combinatorics Seminar: Jesse Lansdown, 4pm Aug 17 in Weatherburn LT

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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 (...)

Friday 24 
16:00  SEMINAR  Groups and Combinatorics Seminar: Cheryl Praeger, 4pm Aug 24 in Weatherburn LT

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Speaker: Cheryl E Praeger (University of Western Australia)
Title: Structures invariant under maximal subgroups of symmetric groups: a more geometrical O’NanScott Theorem
Time and place: 4pm Friday 24 Jul 2018, Weatherburn LT
Abstract: Maximal intransitive and (...)

Thursday 30 
16:00  SEMINAR  Mathematics and Statistics colloquium : From the fractional Laplacian to the nonlocal minimal surfaces

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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 (...)


September 2018

Friday 21 
16:00  SEMINAR  Groups and Combinatorics Seminar: Peter Vandendriessche, 4pm Sep 21 in Weatherburn LT

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Speaker: Peter Vandendriessche (Ghent University)
Title: Classification of hyperovals and KMarcs in small projective planes
Time and place: 4pm Friday 21 Sep 2018, Weatherburn LT
Abstract: Hyperovals (resp. KMarcs) 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

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Speaker: Barbara Baumeister (Universität Bielefeld)
Title: Noncrossing 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 noncrossing partitions, Coxeter and braid or (...)


October 2018

Friday 05 
16:00  SEMINAR  Groups and Combinatorics Seminar: Carlisle King, 4pm Oct 5 in Weatherburn LT

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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 wellknown 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

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Interfacial mixing and transport are nonequilibrium 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

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Speaker: Saul Freedman (University of Western Australia)
Title: pgroups 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

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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

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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

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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

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Speaker: Marvin Krings (RWTH, Aachen)
Title: The ppart 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

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Speaker: Cai Heng Li (Southern University of Science and Technology, Shenzhen, PRC)
Title: ErdösKoRado Problem for Permutation Groups
Time and place: 4pm Friday 01 Feb 2019, Weatherburn LT
Abstract: A classical result of ErdösKoRado in extremal set theory is (...)

Tuesday 12 
16:00  SEMINAR  Groups and Combinatorics Seminar: Mariagrazia Bianchi, 4pm Feb 12

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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

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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 vertextransitive digraphs admits a (...)

Thursday 21 
16:00  SEMINAR  Mathematics and Statistics colloquium : Particle modelling applied to industrial and biophysical problems

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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 (...)


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