Pointwise convergence of fractional powers of Hermite type operators

  1. Guillermo Flores 1
  2. Gustavo Garrigós 2
  3. Teresa Signes 2
  4. Beatriz Viviani 3
  1. 1 Universidad Nacional de Córdoba, Argentina
  2. 2 Universidad de Murcia, España
  3. 3 Universidad Nacional del Litoral, Argentina
Zeitschrift:
Revista de la Unión Matemática Argentina

ISSN: 1669-9637 0041-6932

Datum der Publikation: 2023

Ausgabe: 66

Nummer: 1

Seiten: 187-205

Art: Artikel

DOI: 10.33044/REVUMA.4357 DIALNET GOOGLE SCHOLAR lock_openOpen Access editor

Andere Publikationen in: Revista de la Unión Matemática Argentina

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Zusammenfassung

When L is the Hermite or the Ornstein–Uhlenbeck operator, we find minimal integrability and smoothness conditions on a function f so that the fractional power Lσf(x0) is well-defined at a given point x0. We illustrate the optimality of the conditions with various examples. Finally, we obtain similar results for the fractional operators (−∆ + R) σ, with R > 0.