6 citations · 11 across the 6 of their papers we have counts for
Showing 2021Show all
3 papers · 1 filter
math.CA2021★ 1 cited
Variation inequalities for Riesz transforms and Poisson semigroups associated with Laguerre polynomial expansions
Jorge J. Betancor, Marta De León-Contreras
In this paper we establish -boundedness properties for variation, oscillation and jump operators associated with Riesz transforms and Poisson semigroups related to Laguerre po…
math.CA2021
Variation operators for semigroups associated with Fourier-Bessel expansions
Jorge J. Betancor, Alejandro J. Castro, Marta De León-Contreras
In this paper we establish -boundedness properties for variation operators defined by semigroups associated with Fourier-Bessel expansions.
math.FA2021★ 6 cited
The quasi-static plasmonic problem for polyhedra
Marta de León-Contreras, Karl-Mikael Perfekt
We characterize the essential spectrum of the plasmonic problem for polyhedra in . The description is particularly simple for convex polyhedra and permittivities $ε<…