I know that there already has been a thread here on Mathematics StackExchange roughly on the same topic: Best Sets of Lecture Notes and Articles (among others), but even there, I have not found the right sets of notes that work for me. In particular, I am looking for some adequate online maths notes which are written in English and touch upon ANY of the following topics (and not necessarily ALL):
- Analysis (real, complex, functional, metric/normed vector/topological spaces and measure theory)
- Algebra (abstract algebra, linear algebra and number theory)
- Geometry (differential geometry of curves and surfaces and topology)
In particular, I am looking for some online notes which meet the following criteria:
- Formal writing style: In particular, written in a formal Definition-Example-Result-Proof-Remark style, without any long verbose paragraphs in between, and definitely NOT written in the informal first-person conversational style.
- Rigorous reasoning: In particular, does not skip too many steps in proofs or calculations. Also, clear and unambiguous notation is used.
- Lively visual presentation: In particular, exposes the material in a visually distinct manner that is not hard on the eye (e.g. with reasonable spacing, coloured boxes and clear diagrams).
I have found many excellent sets of online math notes written in French which meet the above criteria right on the mark and I am satisfied with them, but as of yet I have found none written in English. It's fine if they don't meet the above criteria perfectly, but only as long as they do so adequately. If for reference, you are interested in the French online math notes that I have found and am satisfied with, then the following links may be useful:
- Mickaël Prost's website
- Jérôme Von Buhren's website
- David Blottière's website
- Simon Coste's website
- Alain Soyeur's website
I request your help.