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Image of Prof. Andrew Wathen

Prof. Andrew Wathen

BA, PhD
Status
Academic Faculty

Professor of Computational Mathematics, Fellow of New College.

Contact form
+44 1865 615316
ORCID iD
https://orcid.org/0000-0001-9992-5588
Research groups
  • Numerical Analysis

Address
Mathematical Institute
University of Oxford
Andrew Wiles Building
Radcliffe Observatory Quarter
Woodstock Road
Oxford
OX2 6GG

Highlighted books
Finite Elements and Fast Iterative Solvers With Applications in Incompressible Fluid Dynamics Elman, H Silvester, D Wathen, A (2014)
Highlighted publications
Preconditioning
Wathen, A Acta Numerica volume 24 329-376 (27 Apr 2015)
A Preconditioned MINRES method for nonsymmetric Toeplitz matrices
Pestana, J Wathen, A SIAM Journal on Matrix Analysis and Applications volume 36 issue 1 273-288 (19 Mar 2015)
OPTIMAL SOLVERS FOR PDE-CONSTRAINED OPTIMIZATION
Rees, T Dollar, H Wathen, A SIAM JOURNAL ON SCIENTIFIC COMPUTING volume 32 issue 1 271-298 (2010) http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000277837000016&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=4fd6f7d59a501f9b8bac2be37914c43e
COMBINATION PRECONDITIONING AND THE BRAMBLE-PASCIAK+ PRECONDITIONER
Stoll, M Wathen, A SIAM JOURNAL ON MATRIX ANALYSIS AND APPLICATIONS volume 30 issue 2 582-608 (2008) http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000259955600010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=4fd6f7d59a501f9b8bac2be37914c43e
CHEBYSHEV SEMI-ITERATION IN PRECONDITIONING FOR PROBLEMS INCLUDING THE MASS MATRIX
Wathen, A Rees, T ELECTRONIC TRANSACTIONS ON NUMERICAL ANALYSIS volume 34 125-135 (2008) http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000273123000012&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=4fd6f7d59a501f9b8bac2be37914c43e
Research interests

Numerical Analysis, Numerical Linear Algebra and the Numerical Solution of Partial Differential Equations

Recent books
Finite Elements and Fast Iterative Solvers Elman, H Silvester, D Wathen, A (2005)
Recent publications
Some comments on preconditioning for normal equations and least squares
Wathen, A SIAM Review volume 64 issue 3 640-649 (04 Aug 2022)
Space-time block preconditioning for incompressible flow
Danieli, F Southworth, B Wathen, A SIAM Journal on Scientific Computing volume 44 issue 1 A337-A363 (08 Feb 2022)
Band-Toeplitz preconditioners for ill-conditioned Toeplitz systems
Hon, S Serra-Capizzano, S Wathen, A BIT Numerical Mathematics volume 62 issue 2 465-491 (09 Aug 2021)
Some observations on preconditioning for non-self-adjoint and time-dependent problems
Wathen, A Computers and Mathematics with Applications (11 Jun 2021)
All‐at‐once solution of linear wave equations
Danieli, F Wathen, A Numerical Linear Algebra with Applications volume 28 issue 6 (03 May 2021)
Major / recent publications

My papers are visible through Google Scholar or MathSciNet, but several colleagues have told me that they have had difficulty viewing my review paper on preconditioning, so here is a link

A. J. Wathen (2015). Preconditioning. Acta Numerica, 24, pp 329-376

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