On some inequalities for Doob decompositions in Banach function spaces
On some inequalities for Doob decompositions in Banach function spaces
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DOI:
10.1007/s00209-009-0546-3
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发表时间:
2010-08
影响因子:
0.8
通讯作者:
M. Kikuchi
中科院分区:
文献类型:
--
作者:
M. Kikuchi
Letbe a Young function and letbe a martingale such thatfor all. Then the processcan be uniquely decomposed as, whereis a martingale andis a predictable nondecreasing process such thath0= 0 almost surely. The main results characterize those Banach function spacesXsuch that the inequalityis valid, and thoseXsuch that the inequalityis valid, whereMfandSfdenote the maximal function and the square function off, respectively.