Miscellaneous

There is no requirement for the notes below to contain anything nontrivial.

Twists for cohomological Hall algebras, February 19th, 2025
Base-change map and dualizing sheaf, September 29th, 2024
Morphisms between quotient stacks, April 17th, 2024
Dualizing sheaf of a nodal singularity, March 22nd, 2022
Local complete intersection morphisms, May 23rd, 2023

To install SageMath on Ubuntu, the procedure is easy and explained at this link.