ABSTRACT
The main purpose of Chapter 1 is to fix the notation used throughout this course; most of the notation is classic, but some is probably unusual, e.g., the notation P https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780203758540/6d885673-f289-4121-8af1-b07f3a2f9acf/content/eq1.tif"/> for the space of C ∞ functions with polynomial growths at infinity. This is why a quick reading is recommended, even if the student is already aware of the topics presented here.
