
Displaying from Sunday, September 01, 2013

September 2013

Friday 06 
15:00  SEMINAR  Groups and Combinatorics Seminar, Connections between Graph Theory & Combinatorics on Words

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Abstract:
A string or word is usually thought of as a sequence of letters drawn from some alphabet. Applications to bioinformatics and other areas suggest the utility of defining strings on subsets of the alphabet instead  socalled "indeterminate" strings. I describe (...)

Friday 13 
15:00  SEMINAR  Groups and Combinatorics Seminar, On The Noncommuting Graph

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Abstract:
In this talk, we will consider the noncommuting graph of a nonabelian finite group G; its vertex set is the set of noncentral elements of G, and two distinct vertices x and y are joined by an edge if they do not commute together. Actually, we study some properties of the (...)

Wednesday 18 
'Becoming an Engineer with UWA' info evening: Prospective students and their parents are invited to attend one of our info sessions to learn more about how to achieve an engineering career with UWA.
Please RSVP via https://www.ecm.uwa.edu.au/community/engineeringinfoevenings

Thursday 19 
Mathematica exhibits a comprehensive set of stateoftheart image processing and analysis functions for two and threedimensional image composition, segmentation, feature detection, transformation, alignment, and restoration. The talk will touch several image processing application areas and (...)

Friday 20 
15:00  SEMINAR  Groups and Combinatorics Seminar, Generalised quadrangles constructed from groups

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Abstract:
This is just a survey talk of various ways to construct all of the known finite generalised quadrangles starting with a group and a configuration of subgroups of that group. In particular, the speaker will give a summary of where one of the "retreat" problems is at.

Wednesday 25 
11:00  SEMINAR  Mathematics Colloquium: The CohenLenstra heuristics: from arithmetic to topology and back again

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Akshay Venkatesh (Stanford) Mahler Lecturer and IAS ProfessoratLarge
will speak on
The CohenLenstra heuristics: from arithmetic to topology and back again.
at 11am in the Science Library Access Grid room.
I will discuss some models of (...)
The 2013 Mahler Lecture by Akshay Venkatesh, Professor of Mathematics at Stanford University.
Surprisingly, there have been fundamental new discoveries about prime numbers in the last decade, most recently by Yitang Zhang a few months ago. In this lecture, Professor Venkatesh will survey (...)

Friday 27 
15:00  SEMINAR  Groups and Combinatorics Seminar, Straightline programs with memory and applications to computational group theory

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Abstract:
Straightline programs offer a method for encoding group computations in a "black box" sense, namely without using specifics of the group's representation or how the group operations are performed. We advocate that straightline programs designed for group (...)


October 2013

Friday 11 
15:00  SEMINAR  Groups and Combinatorics Seminar, Multiply tiling Euclidean space by translating a convex object

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Abstract:
We study the problem of covering Euclidean space R^d by possibly overlapping translates of a convex body P, such that almost every point is covered exactly k times, for a fixed integer k. Such a covering of Euclidean space by translations is called a ktiling. We will first (...)

Friday 18 
15:00  SEMINAR  Groups and Combinatorics Seminar, Regular orbits of Sym(n) and Alt(n) on irreducible representations

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Abstract:
Given a finite group G and a faithful irreducible FGmodule V where F is a field of prime order, we can ask whether G has a regular orbit on the vectors of V. This problem is related to determining which primitive permutation groups of affine type have a base of size 2, as well (...)

Thursday 24 
18:00  LECTURE  27th Dr George Hondros Memorial Lecture : Unique designs — the power of multidisciplinary collaboration. Delivered by Tristram Carfrae AwardWinning Structural Engineer, Director and Arup Fellow.

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Tristram Carfrae is responsible for the design of an impressive array of awardwinning buildings and is regarded internationally as a leading designer of light weight longspan structures.
In collaborating with some of the world’s best architects, he has a reputation for challenging the (...)

Friday 25 
15:00  SEMINAR  Groups and Combinatorics Seminar, Coprime actions of finite linear groups

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Abstract:
Let H be a finite linear group acting completely reducibly on a finite vector space V. Gabriel Navarro asked: if the Horbits containing vectors a and b have coprime lengths m and n, is there an Horbit of length mn?
We answered, by showing that the Horbit containing a + b (...)


November 2013

Friday 01 
15:00  SEMINAR  Groups and Combinatorics Seminar, Algebraic geometry codes

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Abstract:
Codes arising from algebraic geometry, first introduced by Goppa, gained attention when Tsfasman–Vladut–Zink used them to improve the GilbertVarshamow bound. We will give a gentle introduction to some of the beautiful ideas from algebraic geometry used to build these codes (...)

Tuesday 12 
R is a free and extremely powerful language and software environment for statistical computing, data analysis, and graphics. The course is designed for those who have no experience with R, but have a basic understanding of statistics. The course will include:
Introduction to R: How to install R on (...)

Wednesday 13 
Professor Tilling main areas of expertise are in methods for
analysing exposures and outcomes across the lifecourse, and in methods for dealing with missing data. She has a mathematical background, an MSc in Applied Statistics and a PhD in Epidemiology, together with more than 15 years’ experience (...)

Thursday 14 
The course will cover material ranging from a review of simple oneway ANOVA, to more complex designs and analyses including crossed and nested factors with fixed and random effects.The emphasis throughout will be placed on applications rather than theory. The statistical package R and R Commander (...)

Friday 15 
15:00  SEMINAR  Groups and Combinatorics Seminar, A miscellany of topics related to semiregular graph automorphisms

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Abstract :
I will discuss a few things, all related to semiregular graph automorphisms : the polycirculant conjecture, the abelian normal quotient method, an interesting class of graphs...

Monday 18 
12:00  SEMINAR  Confronting the killer: epidemiology and prevention of pneumonia in Papua New Guinean children

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The Lung Institute of WA invites you to a free seminar on: "Confronting the killer: epidemiology and prevention of pneumonia in Papua New Guinean children" by Associate Professor Deborah Lehmann. A light lunch will be served from 12.00pm with a 12.30pm – 1.30pm presentation.
In 1950’s Fermi, motivated by fundamental questions of statistical mechanics, started a numerical experiment in collaboration with Pasta and Ulam to test the ergodic properties of nonlinear dynamical systems. The chosen socalled FPU system was a one dimensional chain of N nonlinear coupled (...)

Friday 22 
Selfavoiding walks (SAWs) are widely studied as a problem in algebraic combinatorics by mathematicians, as a problem in algorithm design by computer scientists, as a model of phase transitions by mathematical physicists and as a model of polymers in dilute solution by chemists.
More (...)


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