A. Sagiv

activity

20042023

most citedRelativistic Radiation Mediated Shocks

95 citations · 156 across the 13 of their papers we have counts for

collaborators

Showing 2021Show all

3 papers · 1 filter

math.CA2021

Minimizing optimal transport for functions with fixed-size nodal sets

Qiang Du, Amir Sagiv

Consider the class of zero-mean functions with fixed $L^{\infty}$ and $L^{1}$ norms and exactly $N \in N$ nodal points. Which functions $f$ minimize $W_{p} (f_{+}, f_{-})$ , the Wasse…

math.AP2021

Effective gaps in continuous Floquet Hamiltonians

Amir Sagiv, Michael I. Weinstein

We consider two-dimensional Schroedinger equations with honeycomb potentials and slow time-periodic forcing of the form: $$iψ_t (t,x) = H^\varepsilon(t)ψ=\left(H^0+2i\varepsilon A…

math.NA2021

Spectral convergence of probability densities for forward problems in uncertainty quantification

Amir Sagiv

The estimation of probability density functions (PDF) using approximate maps is a fundamental building block in computational probability. We consider forward problems in uncertain…