Algebras of Singular Integral Operators with Kernels Controlled by Multiple Norms 1

Vetenskap & teknik

Algebras of Singular Integral Operators with Kernels Controlled by Multiple Norms

Alexander Nagel • Fulvio Ricci • Elias M Stein • Stephen Wainger

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141 sidor
2019

The authors study algebras of singular integral operators on $\mathbb R^n$ and nilpotent Lie groups that arise when considering the composition of Calderon-Zygmund operators with different homogeneities, such as operators occuring in sub-elliptic problems and those arising in elliptic problems. These algebras are characterized in a number of different but equivalent ways: in terms of kernel estimates and cancellation conditions, in terms of estimates of the symbol, and in terms of decompositions into dyadic sums of dilates of bump functions. The resulting operators are pseudo-local and bounded on $L^p$ for $1 \lt p \lt \infty $. While the usual class of Calderon-Zygmund operators is invariant under a one-parameter family of dilations, the operators studied here fall outside this class, and reflect a multi-parameter structure.

Författare: Alexander Nagel, Fulvio Ricci, Elias M Stein, Stephen Wainger
Format: Pocket/Paperback
ISBN: 9781470434380
Språk: Engelska
Antal sidor: 141
Utgivningsdatum: 2019-01-30
Förlag: American Mathematical Society