Amir Sagiv

I am currently an Instructor (starting a termed assistant professorship on July 2020) at the Department of Applied Physics and Applied Mathematics in Columbia University.

Before that, I was an Applied Mathematics Ph.D. student 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 differential equations, dynamical systems, optics and wave phenomena, uncertainty quantification, and mathematical analysis in general.

See my CV here.

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


  1. (with Stefan Steinerberger)
    Transport and interface: an uncertainty principle for the Wasserstein distance. (2019, submitted)

  2. (with Gadi Fibich, Adi Ditkowski, and Roy Goodman)
    Loss of physical reversibility in reversible systems. (2019, submitted)

  3. The Wasserstein distances between pushed-forward measures with applications to uncertainty quantification.
    Communications in Mathematical Sciences, accepted.

  4. (with Gadi Fibich and Adi Ditkowski)
    Density estimation in uncertainty propagation problems using a surrogate model.
    SIAM/ASA Journal on Uncertainty Quantification, accepted.

  5. (with Gauri Patwardhan, Xiaohui Gao, Avik Dutt, Jared Ginsberg, Gadi Fibich, Adi Ditkowski, and Alexander Gaeta)
    Loss of polarization of elliptically polarized collapsing beams
    Physical Review A 99, 033824, 2019. arxiv

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

Upcoming Talks and Conferences

  1. Caltech CMX Seminar, Pasadena CA, 2/26/20.

  2. North Carolina State University joint Probability and Differential Equations seminar, Raleigh NC, 04/20/20.

  3. Duke University Applied Mathematics Seminar, Durham NC, 04/21/20.

  4. University of Massachusetts Analysis and PDE Seminar, Amherst MA, 04/29/20.