Amir Sagiv

I am a Term Assistant Professor at the Department of Applied Physics and Applied Mathematics in Columbia University, working under the mentorship of Michael Weinstein.

In 2019, I completed my Ph.D. in Applied Mathematics in Tel Aviv University's School of Mathematical Sciences, under the supervision of Gadi Fibich and Adi Ditkowski. I obtained my M.Sc. in Mathematics at Tel Aviv University, and my B.Sc. in Mathematics and Physics at the Hebrew University of Jerusalem.

I am interested in two main areas - (1) Waves and modelling of optical phenomena, and (2) Uncertainty quantification and statistical problems in physical systems.

See my CV here.

500 W 120th Street,
Engineering Terrace 284A (access via Mudd Building)


  1. Spectral convergence of probability densities
    arxiv 2101.07395.

  2. (with Ofir Lindenbaum, Gal Mishne, and Ronen Talmon)
    Kernel-based parameter estimation of dynamical systems with unknown observation functions
    arxiv 2009.04142.

  3. (with Stefan Steinerberger)
    Transport and interface: an uncertainty principle for the Wasserstein distance.
    SIAM Journal on Mathematical Analysis, 52, 3039-3051, 2020. arxiv.

  4. (with Gadi Fibich, Adi Ditkowski, and Roy Goodman)
    Loss of physical reversibility in reversible systems.
    Physica D, 410, 132515, 2020. arxiv.

  5. The Wasserstein distances between pushed-forward measures with applications to uncertainty quantification.
    Communications in Mathematical Sciences, 18, 707-724, 2020. arxiv.

  6. (with Gadi Fibich and Adi Ditkowski)
    Density estimation in uncertainty propagation problems using a surrogate model
    SIAM/ASA Journal on Uncertainty Quantification, 8, 261-300, 2020. arxiv.

  7. (with Patwardhan, Gao, Dutt, Ginsberg, Fibich, Ditkowski, and Gaeta)
    Loss of polarization of elliptically polarized collapsing beams
    Physical Review A 99, 033824, 2019. arxiv

  8. (with Gadi Fibich and Adi Ditkowski)
    Loss of phase and universality of stochastic interactions between laser beam
    Optics Express 25, 24387-24399, 2017. arxiv

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