In this section we are going to introduce statistical objects that shall be used for the description of the wave systems, PDF's and a generating functional.

- Probability Distribution Function.
- Definition of an ideal RPA field
- Definition of an essentially RPA field
- Why 's and not 's?
- Wavefields with long spatial correlations.
- Generating functional.
- One-mode statistics

Dr Yuri V Lvov 2007-01-23