2 papers
math.FA2025
Rearrangement-invariant norms commuting with dilations
Santiago Boza, Martin Křepela, Javier Soria
We study rearrangement-invariant spaces over for which there exists a function such that \[ \|D_rf\|_X = h(r)\|f\|_X \] for all $f\in…
math.FA2021
Lorentz and Gale-Ryser theorems on general measure spaces
Santiago Boza, Martin Křepela, Javier Soria
Based on the Gale-Ryser theorem for the existence of suitable -matrices for different partitions of a natural number, we revisit the classical result of G. G. Lorentz regard…