XIII: 17, 216-226, LNM 721 (1979) LETTA, Giorgio Quasimartingales et formes linéaires associées (General theory of processes, Martingale theory) This paper gives a definition of a quasimartingale $X$ different from the usual one using the stochastic variation: the linear functional $E[\int_0^{\infty} H_s dX_s]$ should be relatively bounded on the vector lattice (Riesz space) of elementary previsible processes. Many classical theorems have simple proofs or elegant interpretations in this language Keywords: Quasimartingales, Riesz spaces Nature: Original Retrieve article from Numdam