4 papers · 1 filter
On the Interplay Between Hodge Projections and Bounded Harmonic Functions on Manifolds with Ends
Dangyang He, Adam Sikora
We investigate the -boundedness of the Hodge projection in the setting of manifolds with ends. We examine its relationship to the Riesz transform and the space of bounded harm…
Regularity and Separation for -Laplace operators
Daniel Hauer, Adam Sikora
We analyze -Laplace operators with degenerate elliptic coefficients. This investigation includes Grušin type -Laplace operators. We describe a \emph{separation phenomenon} in…
Riesz transforms on a class of non-doubling manifolds II
Andrew Hassell, Daniel Nix, Adam Sikora
We consider a class of manifolds obtained by taking the connected sum of a finite number of -dimensional Riemannian manifolds of the form $(\mathbb{R}^{n_i}, δ) \t…
Second-order operators with degenerate coefficients
A. F. M. ter Elst, Derek W. Robinson, Adam Sikora +1
We consider properties of second-order operators on $\Ri^d$ with bounded real symmetric measurable coefficients. We assume…