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We consider an abstract non-negative self-adjoint operator L acting on L²(X) which satisfies Davies-Gaffney estimates. Let (p > 0) be the Hardy spaces associated to the operator L. We assume that the doubling condition holds for the metric measure space X. We show that a sharp Hörmander-type spectral multiplier theorem on follows from restriction-type estimates and Davies-Gaffney estimates. We also establish a sharp result for the boundedness of Bochner-Riesz means on .
@article{PengChen2013, abstract = {We consider an abstract non-negative self-adjoint operator L acting on L²(X) which satisfies Davies-Gaffney estimates. Let $H^\{p\}_\{L\}(X)$ (p > 0) be the Hardy spaces associated to the operator L. We assume that the doubling condition holds for the metric measure space X. We show that a sharp Hörmander-type spectral multiplier theorem on $H^\{p\}_\{L\}(X)$ follows from restriction-type estimates and Davies-Gaffney estimates. We also establish a sharp result for the boundedness of Bochner-Riesz means on $H^\{p\}_\{L\}(X)$.}, author = {Peng Chen}, journal = {Colloquium Mathematicae}, keywords = {Hardy spaces; spectral multipliers; non-negative self-adjoint operator; Davies-Gaffney estimates; restriction type estimate; Bochner-Riesz means; metric measure space}, language = {eng}, number = {1}, pages = {51-65}, title = {Sharp spectral multipliers for Hardy spaces associated to non-negative self-adjoint operators satisfying Davies-Gaffney estimates}, url = {http://eudml.org/doc/286325}, volume = {133}, year = {2013}, }
TY - JOUR AU - Peng Chen TI - Sharp spectral multipliers for Hardy spaces associated to non-negative self-adjoint operators satisfying Davies-Gaffney estimates JO - Colloquium Mathematicae PY - 2013 VL - 133 IS - 1 SP - 51 EP - 65 AB - We consider an abstract non-negative self-adjoint operator L acting on L²(X) which satisfies Davies-Gaffney estimates. Let $H^{p}_{L}(X)$ (p > 0) be the Hardy spaces associated to the operator L. We assume that the doubling condition holds for the metric measure space X. We show that a sharp Hörmander-type spectral multiplier theorem on $H^{p}_{L}(X)$ follows from restriction-type estimates and Davies-Gaffney estimates. We also establish a sharp result for the boundedness of Bochner-Riesz means on $H^{p}_{L}(X)$. LA - eng KW - Hardy spaces; spectral multipliers; non-negative self-adjoint operator; Davies-Gaffney estimates; restriction type estimate; Bochner-Riesz means; metric measure space UR - http://eudml.org/doc/286325 ER -