Dr Jennifer Pestana


Mathematics and Statistics

Personal statement

My primary research interests are numerical linear algebra and its application to problems in scientific computing. Most of my work has focused on understanding the convergence behaviour of Krylov subspace methods for solving linear systems, and on developing preconditioners for specific applications. I have also been involved in projects that apply ideas from tropical algebra to problems in numerical linear algebra, such as pre-scaling matrices before solving linear systems. Current projects include developing fast solvers for problems from fractional diffusion, and analysing problems in broadband signal processing. 

I have been a lecturer in the Department of Mathematics and Statistics since 2015. Prior to this I held postdoctoral positions at The University of Manchester and the University of Oxford. I obtained my DPhil from the University of Oxford in 2012.

I am a member of SIAM, and am an editor of the SIAM Fundamentals of Algorithms book series. I am also a member of the Edinburgh Mathematical Society, the London Mathematical Society and am a Fellow of the Institute for Mathematics and its Applications. 

My personal webpage can be found here.


Support estimation of a sample space-time covariance matrix
Delaosa Connor, Pestana Jennifer, Goddard Nicholas J, Somasundaram Samuel D, Weiss Stephan
Sensor Signal Processing for Defence 2019 (2019)
Max-balanced Hungarian scalings
Hook James, Pestana Jennifer, Tisseur Francoise, Hogg Jonathan
SIAM Journal on Matrix Analysis and Applications Vol 40, pp. 320-346 (2019)
Iterative approximation of analytic eigenvalues of a parahermitian matrix EVD
Weiss Stephan, Proudler Ian K, Coutts Fraser K, Pestana Jennifer
2019 International Conference on Acoustics, Speech, and Signal Processing (2019)
Sample space-time covariance matrix estimation
Delaosa Connor, Pestana Jennifer, Goddard Nicholas J, Somasundaram Samuel, Weiss Stephan
2019 International Conference on Acoustics, Speech, and Signal Processing (2019)
Correction to "On the existence and uniqueness of the eigenvalue decomposition of a parahermitian matrix"
Weiss Stephan, Pestana Jennifer, Proudler Ian K, Coutts Fraser K
IEEE Transactions on Signal Processing Vol 66, pp. 6325-6327 (2018)
Spectral properties of flipped Toeplitz matrices and related preconditioning
Mazza M, Pestana J
BIT Numerical Mathematics (2018)

more publications


Mathematics and Statistics
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