Alex Townsend

2.1k total citations
50 papers, 1.0k citations indexed

About

Alex Townsend is a scholar working on Computational Theory and Mathematics, Computational Mechanics and Statistical and Nonlinear Physics. According to data from OpenAlex, Alex Townsend has authored 50 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Computational Theory and Mathematics, 17 papers in Computational Mechanics and 13 papers in Statistical and Nonlinear Physics. Recurrent topics in Alex Townsend's work include Matrix Theory and Algorithms (13 papers), Electromagnetic Scattering and Analysis (10 papers) and Model Reduction and Neural Networks (9 papers). Alex Townsend is often cited by papers focused on Matrix Theory and Algorithms (13 papers), Electromagnetic Scattering and Analysis (10 papers) and Model Reduction and Neural Networks (9 papers). Alex Townsend collaborates with scholars based in United States, United Kingdom and Australia. Alex Townsend's co-authors include Sheehan Olver, Nicholas Hale, Lloyd N. Trefethen, Madeleine Udell, Grady B. Wright, Yuji Nakatsukasa, Matthew J. Colbrook, Vanni Noferini, Christopher Earls and Bernhard Beckermann and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Physical Review Letters and Journal of Fluid Mechanics.

In The Last Decade

Alex Townsend

46 papers receiving 941 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Alex Townsend United States 18 270 243 238 189 175 50 1.0k
Marco Caliari Italy 18 286 1.1× 413 1.7× 357 1.5× 154 0.8× 194 1.1× 54 989
Michela Redivo‐Zaglia Italy 17 462 1.7× 401 1.7× 198 0.8× 186 1.0× 300 1.7× 58 1.1k
Marco Vianello Italy 18 364 1.3× 374 1.5× 498 2.1× 100 0.5× 486 2.8× 110 1.2k
K. Jbilou France 19 783 2.9× 510 2.1× 296 1.2× 271 1.4× 133 0.8× 68 1.2k
J. C. Mason United Kingdom 12 178 0.7× 288 1.2× 161 0.7× 205 1.1× 311 1.8× 42 1.3k
Sheehan Olver United Kingdom 19 181 0.7× 309 1.3× 95 0.4× 194 1.0× 475 2.7× 45 999
E. E. Tyrtyshnikov Russia 18 706 2.6× 152 0.6× 355 1.5× 153 0.8× 158 0.9× 43 1.3k
Tzon‐Tzer Lu Taiwan 14 185 0.7× 228 0.9× 323 1.4× 73 0.4× 82 0.5× 36 986
Е. Е. Тыртышников Russia 16 460 1.7× 109 0.4× 325 1.4× 160 0.8× 80 0.5× 69 1.1k
Folkmar Bornemann Germany 23 367 1.4× 293 1.2× 620 2.6× 196 1.0× 119 0.7× 60 1.7k

Countries citing papers authored by Alex Townsend

Since Specialization
Citations

This map shows the geographic impact of Alex Townsend's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Alex Townsend with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Alex Townsend more than expected).

Fields of papers citing papers by Alex Townsend

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Alex Townsend. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Alex Townsend. The network helps show where Alex Townsend may publish in the future.

Co-authorship network of co-authors of Alex Townsend

This figure shows the co-authorship network connecting the top 25 collaborators of Alex Townsend. A scholar is included among the top collaborators of Alex Townsend based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Alex Townsend. Alex Townsend is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Townsend, Alex, et al.. (2025). ContHutch++: Stochastic Trace Estimation For Implicit Integral Operators. SIAM Journal on Numerical Analysis. 63(1). 334–359. 1 indexed citations
2.
Colbrook, Matthew J. & Alex Townsend. (2025). Avoiding Discretization Issues for Nonlinear Eigenvalue Problems. SIAM Journal on Matrix Analysis and Applications. 46(1). 648–675.
3.
Townsend, Alex, et al.. (2025). Numerical instability of algebraic rootfinders. Linear Algebra and its Applications. 729. 308–336.
4.
Townsend, Alex, et al.. (2024). Leveraging the Hankel norm approximation and data‐driven algorithms in reduced order modeling. Numerical Linear Algebra with Applications. 31(4). 1 indexed citations
5.
Colbrook, Matthew J., Qin Li, Ryan V. Raut, & Alex Townsend. (2023). Beyond expectations: residual dynamic mode decomposition and variance for stochastic dynamical systems. Nonlinear Dynamics. 112(3). 2037–2061. 11 indexed citations
6.
Townsend, Alex, et al.. (2023). On the stability of unevenly spaced samples for interpolation and quadrature. BIT Numerical Mathematics. 63(2). 3 indexed citations
7.
Townsend, Alex, et al.. (2023). Elliptic PDE learning is provably data-efficient. Proceedings of the National Academy of Sciences. 120(39). e2303904120–e2303904120. 9 indexed citations
8.
Damle, Anil, et al.. (2022). Data-Driven Algorithms for Signal Processing with Trigonometric Rational Functions. SIAM Journal on Scientific Computing. 44(3). C185–C209. 10 indexed citations
9.
Earls, Christopher, et al.. (2022). Data-driven discovery of Green’s functions with human-understandable deep learning. Scientific Reports. 12(1). 4824–4824. 26 indexed citations
10.
Townsend, Alex, et al.. (2022). Bounding Zolotarev Numbers Using Faber Rational Functions. Constructive Approximation. 56(2). 207–232. 1 indexed citations
11.
Li, Gaojin, Alex Townsend, Lynden A. Archer, & Donald L. Koch. (2021). Electroconvection near an ion-selective surface with Butler–Volmer kinetics. Journal of Fluid Mechanics. 930. 11 indexed citations
12.
Li, Gaojin, Alex Townsend, Lynden A. Archer, & Donald L. Koch. (2021). Suppression of electroconvective and morphological instabilities by an imposed cross flow of the electrolyte. Physical Review Fluids. 6(3). 10 indexed citations
13.
Yang, Yunan, Alex Townsend, & Daniel Appelö. (2021). Anderson acceleration based on the H − s Sobolev norm for contractive and noncontractive fixed-point operators. Journal of Computational and Applied Mathematics. 403. 113844–113844. 4 indexed citations
14.
Yang, Yunan, Alex Townsend, & Daniel Appelö. (2020). Anderson Acceleration Using the H -s Norm.. arXiv (Cornell University). 1 indexed citations
15.
Udell, Madeleine & Alex Townsend. (2019). Why Are Big Data Matrices Approximately Low Rank?. SIAM Journal on Mathematics of Data Science. 1(1). 144–160. 93 indexed citations
16.
Townsend, Alex, et al.. (2019). Chebyshev Approximation and the Global Geometry of Model Predictions. Physical Review Letters. 122(15). 158302–158302. 10 indexed citations
17.
Driscoll, Tobin A., Alex Townsend, Jean‐Paul Berrut, et al.. (2016). New Directions in Numerical Computation. Notices of the American Mathematical Society. 63(4). 398–400.
18.
Townsend, Alex & Lloyd N. Trefethen. (2013). An Extension of Chebfun to Two Dimensions. SIAM Journal on Scientific Computing. 35(6). C495–C518. 72 indexed citations
19.
Hale, Nicholas & Alex Townsend. (2013). Fast and Accurate Computation of Gauss--Legendre and Gauss--Jacobi Quadrature Nodes and Weights. SIAM Journal on Scientific Computing. 35(2). A652–A674. 136 indexed citations
20.
Townsend, Alex & Lloyd N. Trefethen. (2013). Gaussian elimination as an iterative algorithm. Oxford University Research Archive (ORA) (University of Oxford). 7 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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2026