Multivariable spectral multipliers and quasielliptic operators

Details Multivariable spectral multipliers and quasielliptic operators Multivariable spectral multipliers and quasielliptic operators

2008-07-28

arxiv.org/abs/0807.4348v1

Mathematics

Analysis of PDEs

Scientific paper

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 H\"ormander type differentiability condition then the operator $F(L_1,L_2)$ is of Calder\'on-Zygmund type. We apply obtained results to the analysis of quasielliptic operators acting on product of some fractal spaces. The existence and surprising properties of quasielliptic operators have been recently observed in works of Bockelman, Drenning and Strichartz. This paper demonstrates that Riesz type operators corresponding to quasielliptic operators are continuous on $L^p$ spaces.

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