
Displaying from Thursday, May 17, 2018

May 2018

Thursday 17 
16:00  TALK  Mathematics and Statistics Colloquium : How big is the nth prime?

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

Friday 18 
16:00  SEMINAR  Groups and Combinatorics Seminar: Carmen Amarra, 4pm Friday 18 May 2018 in Weatherburn LT

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Speaker: Carmen Amarra (University of Western Australia and University of the Philippines)
Title: Quotientcomplete arctransitive latin square graphs
Time and place: 4pm 18 May 2018, Weatherburn LT
Abstract: This talk deals with an open problem in my PhD thesis (...)

Friday 25 
16:00  SEMINAR  Groups and Combinatorics Seminar: Emilio Pierro, 4pm Friday 25 May 2018, Weatherburn

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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 (...)


June 2018

Friday 15 
16:00  SEMINAR  Groups and Combinatorics Seminar: Luke Morgan, 4pm Friday 15 June in Robert Street LT

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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 (...)

Friday 22 
16:00  SEMINAR  Groups and Combinatorics Seminar: Gabriel Verret, 4pm Friday 22 June in Blakers LT

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Speaker: Gabriel Verret (Univ. of Auckland)
Title: Compatible local actions in arctransitive digraphs
Time and place: 4pm Friday 22 Jun 2018, Blakers LT
Abstract: Given a Garctransitive graph, the local action is the permutation group induced by a vertexstabilise (...)


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 (...)


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