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Personal profile

Research interests

Qualifications: BSc (1st Class Hons, Edinburgh, 1970), MSc (Oxford, 1971), DPhil (Oxford, 1974)

My main research is in Numerical Analysis and Scientific Computing, including both analysis of numerical algorithms and applications.

More specifically, at the moment, my main interests are:

  1. `Large Sparse Matrix Computations and Eigenvalue Problems', with, for example, application to stability of compressible and incompressible fluid flows;
  2. `Analysis of Networks and their Applications', with applications in Bioinformatics, including understanding how data errors affect algorithms for clustering;
  3. `Iterative methods for the Neutron Transport equation', including the analyisis of preconditioners within a diffusive regime.

More details can be found on my web page.

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Projects

  • Numerical Linear Algebra

    Spence, A.

    The Royal Society

    1/06/086/06/08

    Project: Research council

    Research Output

    Open Access
    File
    106 Downloads (Pure)

    Calculating the $H_{\infty}$-norm Using the Implicit Determinant Method

    Freitag, M. A., Spence, A. & Van Dooren, P., 31 Dec 2014, In : SIAM Journal On Matrix Analysis and Applications (SIMAX). 35, 2, p. 619-635 17 p.

    Research output: Contribution to journalArticle

    Open Access
    File
  • 10 Citations (Scopus)
    128 Downloads (Pure)
    File
  • 145 Downloads (Pure)

    The calculation of the distance to a nearby defective matrix

    Akinola, R. O., Freitag, M. A. & Spence, A., May 2014, In : Numerical Linear Algebra with Applications. 21, 3, p. 403-414

    Research output: Contribution to journalArticle

  • 5 Citations (Scopus)

    The computation of Jordan blocks in parameter-dependent matrices

    Akinola, R. O., Freitag, M. A. & Spence, A., Jul 2014, In : IMA Journal of Numerical Analysis. 34, 3, p. 955-976 22 p.

    Research output: Contribution to journalArticle

    Open Access
    File
  • 7 Citations (Scopus)
    129 Downloads (Pure)