Steve Hofmann

activity

20072026

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math.CA2021

Parabolic Singular Integrals with Nonhomogeneous Kernels

Simon Bortz, John Hoffman, Steve Hofmann +2

We establish $L^{2}$ boundedness of all "nice" parabolic singular integrals on "Good Parabolic Graphs", aka {\em regular} Lip(1,1/2) graphs. The novelty here is that we include non-h…

math.CA2007

Dahlberg's bilinear estimate for solutions of divergence form complex elliptic equations

S. Hofmann

We consider divergence form elliptic operators $L=-\dv A(x)\nabla$, defined in $R^{n + 1} = {(x, t) \in R^{n} \times R}, n \geq 2$ , where the $L^{\infty}$ coeff…