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This is an extremely basic (and surely amateurish) question that might be about derived geometry. In usual algebraic geometry, if we have a flat projective morphism $f:X \to S$ with $S$ integral, and ...

I know the question "how to study math" has been asked dozens of times before in many variations, but (I hope) this one is different. My goal is to study derived algebraic geometry, where derived ...

Context: I'm giving an informal seminar/reading group collection of talks on derived categories, following on from earlier talks giving the abstract definition. I am starting to talk about $\mathcal{...