Fruzsina J. Agocs

Assistant Professor in Computer Science at the University of Colorado Boulder

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Eng. Center ECOT 614

University of Colorado Boulder

I’m a Tenure-track Assistant Professor at the Department of Computer Science at the University of Colorado, Boulder, and the PI of the Computational Tools for Science and Engineering (CompTools) lab.

My research blends scientific computing with numerical analysis and computational physics, and is guided by physics and engineering applications. My work includes developing high-order accurate, efficient numerical methods for challenging ordinary and partial differential equations (ODEs and PDEs), and inference of early-universe physics.

Between 2021-2024, I worked as a research fellow at the Center for Computational Mathematics within the Flatiron Insitute, within the numerical analysis group led by Alex Barnett. Before that, I earned my PhD in Cosmology from the University of Cambridge (UK), where I was advised by Anthony Lasenby, Mike Hobson, and Will Handley. Even before then, I did an MSci + BA in Natural Sciences (Physics).

I am a topics editor for JOSS, the Journal of Open Source Software.

news

Oct 08, 2026 For prospective PhD students
Jul 31, 2026 Congratulations to Jorge Lopez Leon for being awarded the best poster prize in the category “Computing, Robotics, and Engineering Systems” at the summer undergraduate research symposium!
Apr 16, 2026 Congratulations to Andy Gusty for earning an NSF Graduate Research Fellowship!
Apr 10, 2026 Congratulations to Andy Gusty for being awarded the College of Engineering and Applied Science Research Award for graduating students!

latest posts

Dec 18, 2019 Python wrapper for C++ projects

selected publications

  1. BIEs
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    Complex scaling for the junction of semi-infinite gratings
    Fruzsina J Agocs, Tristan Goodwill, and Jeremy Hoskins
    arXiv preprint arXiv:2509.02951, 2025
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    3 Google Scholar citations
  2. BIEs
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    An efficient boundary integral equation solution technique for solving aperiodic scattering problems from two-dimensional, periodic boundaries
    Riley Fisher, Fruzsina Agocs, and Adrianna Gillman
    arXiv preprint arXiv:2511.04424, 2025
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    1 Google Scholar citations
  3. BIEs
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    Integral equations for flexural scattering problems with periodic boundaries
    Fruzsina Agocs, Tristan Goodwill, Jeremy G Hoskins, and 1 more author
    arXiv preprint arXiv:2603.00366, 2026
    0 Google Scholar citations
  4. BIEs
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    Trapped acoustic waves and raindrops: high-order accurate integral equation method for localized excitation of a periodic staircase
    Fruzsina J Agocs and Alex H Barnett
    Journal of Computational Physics, 2024
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    6 Google Scholar citations
  5. ML/AI, BIEs
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    The well: a large-scale collection of diverse physics simulations for machine learning
    Ruben Ohana, Michael McCabe, Lucas Meyer, and 8 more authors
    Advances in Neural Information Processing Systems, 2024
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    215 Google Scholar citations
  6. ODEs
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    Efficient method for solving highly oscillatory ordinary differential equations with applications to physical systems
    Fruzsina Julia Agocs, WJ Handley, Anthony N Lasenby, and 1 more author
    Physical Review Research, 2020
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    46 Google Scholar citations
  7. cosmology
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    Quantum initial conditions for inflation and canonical invariance
    FJ Agocs, LT Hergt, WJ Handley, and 2 more authors
    Physical Review D, 2020
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    19 Google Scholar citations
  8. software
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    (py) oscode: Fast solutions of oscillatory ODEs
    Fruzsina Julia Agocs
    Journal of Open Source Software, 2020
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    4 Google Scholar citations
  9. cosmology
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    Finite inflation in curved space
    Lukas T Hergt, Fruzsina J Agocs, Will J Handley, and 2 more authors
    Physical Review D, 2022
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    28 Google Scholar citations
  10. cosmology
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    Quantum initial conditions for curved inflating universes
    Mary I Letey, Zakhar Shumaylov, Fruzsina J Agocs, and 3 more authors
    Physical Review D, 2024
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    14 Google Scholar citations
  11. BIEs
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    An adaptive spectral method for oscillatory second-order linear ODEs with frequency-independent cost
    Fruzsina J Agocs and Alex H Barnett
    SIAM Journal on Numerical Analysis, 2024
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    11 Google Scholar citations
  12. software
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    riccati: an adaptive, spectral solver for oscillatory ODEs
    Fruzsina J Agocs and Alex H Barnett
    Journal of Open Source Software, 2023
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    2 Google Scholar citations