AGITTOC pseudolecture 1 (welcome; philosophy; some category theory)

AGITTOC pseudolecture 4: geometric spaces as ringed spaces; sheaves; towards varieties/schemes.See more

AGITTOC pseudolecture 2. Introduction to (pre)sheaves. A little bit about abelian categories.See more

AGITTOC pseudolecture 13/14See more

AGITTOC pseudolectures 11/14See more

AGITTOC pseudolecture 3: geometric spaces, defined. Spectra. More on sheaves.See more