M. Christ

activity

20022026

most citedIll-posedness for nonlinear Schrodinger and wave equations

119 citations · 317 across the 29 of their papers we have counts for

collaborators

Showing 2015Show all

2 papers · 1 filter

math.CA2015★ 3 cited

Near equality in the Riesz-Sobolev inequality in higher dimensions

Michael Christ

The Riesz-Sobolev inequality provides an upper bound for a trilinear expression involving convolution of indicator functions of sets. It is known that equality holds only for homot…

math.CA2015★ 1 cited

On nearly radial product functions

Michael Christ

If $f \in L^{2} (R^{d})$ and if the function $f (x) f (y)$ is close in $L^{2} (R^{2 d})$ norm to a radially symmetric function of $(x, y)$ then $f$ is close in $L^{2}$ norm to a centered Gaussian…