%0 Journal Article %A Hughes, Kevin %T $\ell ^p$-improving for discrete spherical averages %J Annales Henri Lebesgue %D 2020 %P 959-980 %V 3 %I ÉNS Rennes %U http://www.numdam.org/articles/10.5802/ahl.50/ %R 10.5802/ahl.50 %G en %F AHL_2020__3__959_0