Here you find some notes on fundamental theorems of the arithmetic of elliptic curves as well as Syzygies.
Syzygies on modules: computational and homological perspectives
Here you can find some notes for descent on torsors.
Descent on Torsors
Here are some notes that I prepared in numerics, linear algebra and optimal control, for a course during my undergraduate studies. Probably, they contain tons of mistakes as well as some mathematical immaturity, so use on your own risk!
Finite Element Method
Gateaux derivatives
Pontryagin maximum principle
Norms