The slides below are for a series of six lectures on scattering theory, given in July 2021 as part of the Montréal Séminaire de Mathématiques Supérieures Microlocal Analysis Summer School.
Part 1: Free Waves. Annotated version.
Part 2: Perturbed Waves and Resonances. Annotated version. (The annotated version is missing a few pages at the end.)
Part 3: Stronger Perturbations. Annotated version. (The annotated version is missing a few pages at the end.)
Part 4: Complex Scaling and Resonance Free Regions. Annotated version.
Exercise solutions and a Desmos discussion of semiclassical rescaling in C by Perry Kleinhenz.