Skip to main content
3 of 3
added 6 characters in body
ABIM
  • 5.4k
  • 3
  • 19
  • 41

Conditions for existence of a semi-martingale representing a system of probability measures

Let $(\nu_t)_{t \in [0,1]}$ be Borel probability measures on a stochastic basis $(\Omega,\mathcal{F},(\mathcal{F}_{t \in [0,1]})_t,\mathbb{P})$.

Does there exist a semi-martingale $(X_t)_{t\in[0,1]}$ on this stochastic basis, such that $X_t\sim \nu_t$ for everty $t \in [0,1]$? If not, what conditions are needed on the measures $\nu_{\cdot}$ for this to be possible?

ABIM
  • 5.4k
  • 3
  • 19
  • 41