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math.AP2022
Pointwise convergence of fractional powers of Hermite type operators
Guillermo Flores, Gustavo Garrigos, Teresa Signes +1
When is the Hermite or the Ornstein-Uhlenbeck operator, we find minimal integrability and smoothness conditions on a function so that the fractional power is we…
math.AP2015
A.e. convergence and 2-weight inequalities for Poisson-Laguerre semigroups
Gustavo Garrigos, Silvia Hartzstein, Teresa Signes +1
We find optimal decay estimates for the Poisson kernels associated with various Laguerre-type operators L. From these, we solve two problems about the Poisson semigroup $e^{-t\sqrt…