This monograph is an introduction to some aspects of stochastic analysis
in the framework of normal martingales, in both discrete and continuous
time. The text is mostly self-contained, except for Section 5.7 that
requires some background in geometry, and should be accessible to
graduate students and researchers having already received a basic
training in probability. Prereq- sites are mostly limited to a knowledge
of measure theory and probability, namely?-algebras, expectations,
andconditionalexpectations.Ashortint- duction to stochastic calculus for
continuous and jump processes is given in Chapter 2 using normal
martingales, whose predictable quadratic variation is the Lebesgue
measure. There already exists several books devoted to stochastic
analysis for c- tinuous di?usion processes on Gaussian and Wiener
spaces, cf. e.g. [51], [63], [65], [72], [83], [84], [92],
[128], [134], [143], [146], [147]. The particular f- ture of
this text is to simultaneously consider continuous processes and jump
processes in the uni?ed framework of normal martingale