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Generalized Hörmander conditions and weighted endpoint estimates

100%

Lorente M., Martell J., Pérez C., Riveros M.

Studia Mathematica

2009

tom 195

nr 2

157-192

We consider two-weight estimates for singular integral operators and their commutators with bounded mean oscillation functions. Hörmander type conditions in the scale of Orlicz spaces are assumed on the kernels. We prove weighted weak-type estimates for pairs of weights (u,Su) where u is an arbitrary nonnegative function and S is a maximal operator depending on the smoothness of the kernel. We also obtain sufficient conditions on a pair of weights (u,v) for the operators to be bounded from $L^{p}(v)$ to $L^{p,∞}(u)$. One-sided singular integrals, like the differential transform operator, are considered as well. We also provide applications to Fourier multipliers and homogeneous singular integrals.

Weighted estimates for commutators of linear operators

100%

Alvarez J., Bagby R. J., Kurtz D. S., Pérez C.

Studia Mathematica

1993

tom 104

nr 2

195-209

We study boundedness properties of commutators of general linear operators with real-valued BMO functions on weighted $L^p$ spaces. We then derive applications to particular important operators, such as Calderón-Zygmund type operators, pseudo-differential operators, multipliers, rough singular integrals and maximal type operators.

Ograniczanie wyników

2 Studia Mathematica

2 Pérez C.

1 Alvarez J.

1 Bagby R. J.

1 Kurtz D. S.

1 Lorente M.

1 Martell J.

1 Riveros M.

1 2009

1 1993

Wyniki wyszukiwania

Generalized Hörmander conditions and weighted endpoint estimates

Weighted estimates for commutators of linear operators