Day 2: Thursday 13 December 2007 AFTERNOON 
13:45 
Plenary Speaker: Assaf Naor MCLT103 Chair: Ruth Charney
The Story of the Sparsest Cut Problem


Group Theory, Actions & Computation 1 (MCLT103) Chair: R Blyth 
Matroids, Graphs, and Complexity 2 (MCLT102) Chair: J Oxley 
Water Wave Scattering Focusing on WaveIce Interactions 1 (COLT122) Chair: M Meylan 
Geometric Numerical Integration 1 (CO118) Chair: R Quispel 
University Mathematics Education 2 (CO119) Chair: 
InfiniteDimensional Groups & Their Actions 1 (CO216) Chair:A Dooley/S Morris 
General Contributions 4 (CO228) Chair: R Beatson 
14:50 
Ruth Charney
Partially symmetric automorphisms of free groups 
Henry Crapo
Simplicial maps, and the generic rigidity matroid 
Alison Kohout
An elastic plate model for wave scattering in the marginal ice zone 
Laurent O. Jay
Butcher trees and curve search in nonlinear optimization 
William McCallum
Secondary mathematics from an advanced standpoint 
Sidney A. Morris
The structure of connected proLie groups 
Michael Tuite
Vertex operator algebras on genus two Riemann surfaces 
15:15 
Gareth L. Vaughan
Scattering and damping of ice coupled waves 
John Butcher
Gsymplectic general linear methods 
Christopher Atkin
Isometries of infinitedimensional Riemannian manifolds 
V.Lakshmana Gomathi Nayagam
Fuzzy translation invariant topological spaces 
15:40 
Afternoon Tea: Maclaurin foyer 
16:00 
Gerhard Rosenberger
The Tits alternative for sherical generalized tetrahedron groups 
Rhiannon Hall
Chaintype and splittertype theorems for cocircuits and hyperplanes in 3connected matroids 
Malte A. Peter
Timedependent water waves incident on a vertical elastic plate 
Yousaf Habib
Symplectic methods with transformations 
G. Arthur Mihram
Three attributes of tertiarylevel mathematical education to one's society and its advancement of science 
Hendrik Grundling
On group algebras for nonlocally compact groups 
Andrew Percy
Cohomology crosscap products 
16:25 
Benjamin Fine
On some finiteness properties in infinite groups 
Thomas Britz
Matroids applied to coding theory 
Luke Bennetts
Wave scattering by a periodic line array of axisymmetric ice floes 
Dion O'Neale
Geometric integration, high oscillation and resonance 
Bill Barton
Revisiting Felix Klein's “Elementary Mathematics from an Advanced Standpoint” 
Stefano Ferri
Groups acting on Banach spaces 
Driss Drissi
On bounded sequences and applications to invariant subspace
problem
Postponed: new time TBA 
16:50 
Gunter Steinke
Old and new on the universal covering group of SL(2, R) 
Peter Humphries
A basis exchange property for matroids 
Michael Meylan
Simulation of neartrapping timedependent water wave problem 
Klas Modin
On explicit adaptive symplectic integration of separable Hamiltonian systems 
Round Table Discussion What mathematics studies are essential for secondary level mathematics teachers?

Christian Rosendal
Generic representations of finitely generated groups 
Jacek Krawczyk
A viability theory approach to a twostage optimal control problem 
17:1517:40 
Early evening break 
Robert McLachlan
Achieving Brouwer's law of roundoff error 
Vladimir Pestov
A footnote to the property (FH) 
Early evening break 
17:4018:15 
Early evening break 