Acta mathematica scientia,Series A ›› 2009, Vol. 29 ›› Issue (3): 584-592.

• Articles • Previous Articles     Next Articles

Atomic Decompositions of B -valued Quasi-martingales with Respect to Complex Measures

  

  1. (1. School of Mathematics and Statistics, Wuhan University, Wuhan 430072|2. Department of Mathematics,Xinxiang University, Henan Xinxiang 453000)
  • Received:2007-03-11 Revised:2008-12-30 Online:2009-06-25 Published:2009-06-25
  • Supported by:

    国家自然科学基金(10371093)资助

Abstract:

 Let  P be a probability measure, ψ  a  complex valued integrable function and  dμ=ψd a  complex valued measure. Two theorems of atomic decompositions for the space Dα(X)  and pQα(X) of X-valued quasi-martingales with respect to the complex measure μ are obtained  when ψ ∈a1 ∩ b+  and the Banach space X  has suitable convexity and smoothness.  As the applications of atomic decompositions  two inequalities are proved for X-valued quasi-martingales respect to the complex measures μ by using atomic decompositions in the case of   0< α ≤ 1.

Key words: Complex measure,  , Vector-valued quasi-martingale,  , Atomic decomposition

CLC Number: 

  • 60G46
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