Useful Links
Here are some links I found quite useful.
Mathematics
- q.uiver.app, a commutative diagram editor.
- π-Base, where you can search (counter-)example topological spaces by properties.
- MacTutor, biographies of mathematicians.
- Ravi Vakil’s advice for potential PhD students.
- Terence Tao’s advice for young mathematicians.
Some enjoyable webpage to read:
Some useful lecture notes:
- Eric Wei’s Homological algebra notes based on the course at Oxford. While you are at it, check out his dissertation on synthetic homotopy theory.