Littlewood—Paley算子及Marcinkiewicz积分在Campanato空间εa,p上的有界性

我们证明了下述结果:若f∈ε^a,p,则适当限制参数值时,有g(f)(x)(S(f)(x),g_λ^*(f)(x),μ(f)(x))<∞a.e.,或者g(f)(x)(S(f)(x),g_λ^*(f)(x),μ(f)(x))<∞a.e.;并且在前者成立时,有g(f)(S(f),g_λ^*(f),μ(f))∈ε^a,p,以及‖g(f)‖_a,p     

Boundedness of the Littlewood—Paley Operator,the Function g（f）,on BMO（T）

Littlewood-Paley operator,the function g(f),is considered as an operator on BMO(T).It is proved that if f∈BMO(T),then g(f)∈BMO(T) and there is a constant C that is independent of f such that ||g(f)||*≤C||f||*.Moreover,we have got the further results.     

Littlewood—Paley算子及Marcinkiewicz积分在Campanato空间ε~(a,p)上的有界性(英文)

我们证明了下述结果:若f∈ε~(a,p),则适当限制参数值时,有g(f)(x)(S(f)(x),g_λ~*(f)(x),μ(f)(x))<∞a.e.,或者g(f)(x)(S(f)(x),g_λ~*(f)(x),μ(f)(x))<∞a.e.;并且在前者成立时,有g(f)(S(f),g_λ~*(f),μ(f)∈ε~(a,p),以及,其中C为不依赖于f的常数.     

加权BMO函数空间上的Littlewood-Paley算子

Littlewood—Paley算子(g—函数,s—函数与_λ^*—函数,λ>3)作为BMO_w或(BMO)_w上的算子都是“有界的”,确切地说,我们证明了:若f∈BMO_w或(BMO)_w且|{x:Tf(x)≠∞}|>0,则Tf也属于BMO_w或(BMO)_w并且存在与f无关的常数C使‖Tf‖_BMOw<