数学物理学报(英文版) ›› 1998, Vol. 18 ›› Issue (4): 427-434.
陈守银, 李落清
Chen Shouyin, Li Luoqing
摘要: The Peetre K-modulus and the generalized. Riesz summability operators on the sphere are introduced. The convergence and boundedness of the Riesz operators are discussed. The strong and weak equivalence relationships of the K-moduli and the Riesz operators are presented. The Riesz operators can serve as a realization of the corresponding K-modulus.