Li, Libo; Rutkowski, Marek - In: Stochastic Processes and their Applications 122 (2012) 5, pp. 2053-2077
The present research is motivated by the recent results of Jeanblanc and Song (2011) [10,11]. Our aim is to demonstrate, with the help of multiplicative systems introduced in Meyer (1979) [21], that for any given positive F-submartingale F such that F∞=1, there exists a random time τ on some...