Kv. Runovskii et Hj. Schmeisser, ON MARCINKIEWICZ-ZYGMUND TYPE INEQUALITIES FOR IRREGULAR KNOTS IN L-P-SPACES, 0-LESS-THAN-P-LESS-THAN-OR-EQUAL-TO+INFINITY, Mathematische Nachrichten, 189, 1998, pp. 209-220
An equivalence of a discrete norm and a continuous norm of a trigonome
tric polynomial is proved for the case of irregular knots in L-p-space
s, where 0 < p less than or equal to + infinity.