## Amir Sagiv

I am currently a Chu Assistant Professor in the Department of Applied Physics and Applied Mathematics at 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 am interested in differential equations, dynamical systems, optics and wave phenomena, uncertainty quantification, and mathematical analysis in general.

See my CV here.

**Contact:**

initials6011@columbia.edu

+1-212-854-1640

500 W 120th Street,

Engineering Terrace 284A (access via Mudd Building)

Papers

- (with Stefan Steinerberger)

Transport and interface: an uncertainty principle for the Wasserstein distance. (2019, submitted) - (with Gadi Fibich, Adi Ditkowski, and Roy Goodman)

Loss of physical reversibility in reversible systems. (2019, submitted) - The Wasserstein distances between pushed-forward
measures with applications to uncertainty quantification.

**Communications in Mathematical Sciences**, accepted. - (with Gadi Fibich and Adi Ditkowski)

Density estimation in uncertainty propagation problems using a surrogate model.

**SIAM/ASA Journal on Uncertainty Quantification,**accepted. - (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 - (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

- Flatiron Institute Numerical Analysis/CCM seminar, New York, NY, 12/04/19.
- Dynamics Days 2020, Hartford, CT, 1/3/20-1/5/20.
- UC Berkeley/LBL Applied Mathematics Seminar, Berkeley, CA, 01/15/20.
- Duke University Applied Mathematics Seminar, Durham, NC, 04/21/20.