Wed, 31 May 2006
16:00
16:00
L3
Tue, 30 May 2006
17:00
17:00
L1
Graded Hecke algebras and deformations of crossed products
Dr. Sarah Witherspoon
(Texas A&M / Munich)
Tue, 30 May 2006
17:00
17:00
L3
Tue, 30 May 2006
14:30
14:30
L1
Higher Dimensional Black Holes, and Einstein-Sasaki Spaces
Chris Pope
(Texas A&M)
Abstract
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Tue, 30 May 2006
14:00 -
15:00
Comlab
Numerical integration in high dimensions: lifting the curse of dimensionality
Prof Ian Sloan
(University of New South Wales)
Mon, 29 May 2006
17:00
17:00
L3
Minimizers with a topological singularity in 2D elasticity.
Jon Bevan
(Oxford)
Abstract
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Mon, 29 May 2006
15:45
15:45
L3
Mon, 29 May 2006
14:15
14:15
DH 3rd floor SR
Random rewards, Fractional Brownian local times and stable self-similar processes
Prof Serge Cohen
(Université de Toulouse)
Mon, 29 May 2006
14:15
14:15
L3
Mon, 29 May 2006
12:00
12:00
L3
Mon, 29 May 2006
10:30
10:30
L3
Fri, 26 May 2006
14:00
14:00
L3
Predicting disease-associated SNPs : site-specific evolutionary models approach
Miss Anna Chernova
(Imperial College, London)
Fri, 26 May 2006
11:45
11:45
DH 3rd floor SR
Observations and Modelling of Droplets on Fibres
Ben Mullins and Roger Braddock
(Universitt Karlsruhe, Germany; and Griffith University, Australia)
Fri, 26 May 2006
10:00
10:00
DH 3rd floor SR
What can we learn about mitochondrial nucleoid division from Pico Green?
Helen Mardon and Joanne Poulton
(Nuffield Dept. of Obstetrics and Gynaecology)
Thu, 25 May 2006
16:30
16:30
DH 1st floor SR
Thu, 25 May 2006
14:00 -
15:00
Rutherford Appleton Laboratory, nr Didcot
Algebraic updates of preconditioners for solving similar algebraic linear systems
Dr Mirek Tuma
(Institute of Computer Sciences)
Abstract
We consider the solution of sequences of linear systems by preconditioned iterative methods. Such systems arise, for example, in applications such as CFD and structural mechanics. In some cases it is important to avoid the recomputation of preconditioners for subsequent systems. We propose an algebraic strategy that replaces new preconditioners by old preconditioners with simple updates. Efficiency of the new strategy, which generalizes the approach of Benzi and Bertaccini, is demonstrated using numerical experiments.
This talk presents results of joint work with Jurjen Duintjer Tebbens.