TY - JOUR AU - Assaf Naor TI - Discrete Riesz transforms and sharp metric $X_p$ inequalities JO - Annals of mathematics PY - 2016 SP - 991 EP - 1016 VL - 184 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4007/annals.2016.184.3.9/ DO - 10.4007/annals.2016.184.3.9 LA - en ID - 10_4007_annals_2016_184_3_9 ER -