Forthcoming Seminars
|
Mon, 25/04/2005 11:00 |
Graeme Segal (Oxford) |
Topology Advanced Classes  |
L3 |
|
Mon, 25/04/2005 14:15 |
Jose Seade (Cuernavaca) |
Geometry and Analysis Seminar |
L3 |
|
Mon, 25/04/2005 14:15 |
Dr Keisuke Hara (Ritsumeikan University Japan) |
Stochastic Analysis Seminar |
DH 3rd floor SR |
| I will show rough path estimates for smooth L^p functions whose derivatives are in L^q. The application part related to (linear or nonlinear) Fourier analysis will be also discussed. | |||
|
Mon, 25/04/2005 15:45 |
Professor Francesco Russo (Université de Paris 13) |
Stochastic Analysis Seminar |
DH 3rd floor SR |
| We aim at presenting some aspects of stochastic calculus via regularization in relation with integrator processes which are generally not semimartingales. Significant examples of those processes are Dirichlet processes, Lyons-Zheng processes and fractional (resp. bifractional) Brownian motion. A Dirichlet process X is the sum of a local martingale M and a zero quadratic variation process A. We will put the emphasis on a generalization of Dirichlet processes. A weak Dirichlet process is the sum of local martingale M and a process A such that [A,N] = 0 where N is any martingale with respect to an underlying filtration. Obviously a Dirichlet process is a weak Dirichlet process. We will illustrate partly the following application fields. Analysis of stochastic integrals related to fluidodynamical models considered for instance by A. Chorin, F. Flandoli and coauthors... Stochastic differential equations with distributional drift and related stochastic control theory. The talk will partially cover joint works with M. Errami, F. Flandoli, F. Gozzi, G. Trutnau. | |||
|
Mon, 25/04/2005 15:45 |
Jon Berrick (Singapore and Oxford) |
Topology Seminar |
L3 |
|
Mon, 25/04/2005 17:00 |
Christof Melcher (Humboldt University, Berlin) |
Applied Analysis and Mechanics Seminar |
L1 |
|
Mon, 25/04/2005 17:00 |
Chris Good (Birmingham) |
Analytic Topology in Mathematics and Computer Science |
L3 |
|
Tue, 26/04/2005 12:00 |
Paul de Medeiros (Michigan) |
Quantum Field Theory Seminar |
L3 |
|
Tue, 26/04/2005 15:00 |
James Oxley (LSU and Oxford) |
Combinatorial Theory Seminar |
L3 |
|
Tue, 26/04/2005 17:00 |
Dr. M.J. Collins (Oxford) |
Algebra Seminar |
L1 |
|
Tue, 26/04/2005 17:00 |
Markus Haase (Ulm and Pisa) |
Functional Analysis Seminar |
L3 |
|
Wed, 27/04/2005 17:00 |
Nirmalendu Chaudhuri (Australian National University) |
Applied Analysis and Mechanics Seminar |
L1 |
|
Wed, 27/04/2005 17:00 |
Yuri Tomilov (Torun and Warsaw) |
Functional Analysis Seminar |
SR1 |
|
Thu, 28/04/2005 14:00 |
Prof Beresford Parlett (UC Berkeley) |
Computational Mathematics and Applications |
Comlab |
|
Abstract 1 Another Orthogonal Matrix
A householder reflection and a suitable product of Givens rotations are two well known examples of an
orthogonal matrix with given first column. We present another way to produce such a matrix and apply
it to produce a "fast Givens" method to compute the R factor of A, A = QR. This approach avoids the danger
of under/overflow. Abstract 2 An application of Pfaff's Theorem (on skew-symmetric matrices)
There are no constraints on the eigenvalues of a product of two real symmetric matrices but what about the
product of two real skew-symmetric matrices? |
|||
|
Thu, 28/04/2005 14:30 |
Karin Erdmann (Oxford) |
Representation Theory Seminar |
L3 |
|
Thu, 28/04/2005 16:30 |
Mark McGuiness (University of Wellington, NZ) |
Differential Equations and Applications Seminar |
DH Common Room |
| We develop a nonlinear delay-differential equation for the human cardiovascular control system, and use it to explore blood pressure and heart rate variability under short-term baroreflex control. The model incorporates an intrinsically stable heart rate in the absence of nervous control, and features baroreflex influence on both heart rate and peripheral resistance. Analytical simplications of the model allow a general investigation of the r\^{o}les played by gain and delay, and the effects of ageing. View diagram: Download PDF | |||
|
Thu, 28/04/2005 16:30 |
Lloyd Kilford (Oxford) |
Number Theory Seminar |
L3 |
|
Fri, 29/04/2005 14:15 |
Mr Najl Valeyev (Dept. of Biochemistry, Univ. of Oxford) |
Mathematical Biology and Ecology Seminar |
DH 3rd floor SR |
|
Fri, 29/04/2005 15:15 |
A Khovanskii (Toronto) |
Logic Seminar |
L3 |
|
Fri, 29/04/2005 16:30 |
Mr Ranga Yogeshwar (WDR German TV - Germany) |
Colloquia |
L2 |
| Most people acquire their | |||
