AN EQUIVALENT CHARACTERIZATION OF WEAK BMO MARTINGALE
SPACES
Dejian Zhou
Weiwei Li
Yong Jiao
Abstract: In this paper, we give an equivalent characterization of weak BMO martingale spaces
due to Ferenc Weisz (1998).
2010 AMS Mathematics Subject Classification: Primary: 60G42; Secondary:
60G46.
Keywords and phrases: Weak BMO space, martingale, John–Nirenberg inequality.