Adam S. Sikora

activity

19972026

most citedGaussian heat kernel upper bounds via Phragmén-Lindelöf theorem

181 citations · 551 across the 67 of their papers we have counts for

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Showing 2008 · math.APShow all

2 papers · 2 filters

math.AP2008★ 2 cited

Multivariable spectral multipliers and quasielliptic operators

Adam Sikora

We study multivariable spectral multipliers $F (L_{1}, L_{2})$ acting on Cartesian product of ambient spaces of two self-adjoint operators $L_{1}$ and $L_{2}$ . We prove that if $F$ satisfies…

math.AP2008

Ellipticity and Ergodicity

Derek W. Robinson, Adam Sikora

Let $S = {S_{t}}_{t \geq 0}$ be the submarkovian semigroup on $L_2(\Ri^d)$ generated by a self-adjoint, second-order, divergence-form, elliptic operator $H$ with Lipschitz continuous c…