I learn and produce mathematics. In that process, I had to read quite a number of research articles.

Question :

What are some efficient ways to keep a note of results of a research article in mathematics?

I keep a note of definitions (in detail) and results (with out proofs) for each paper I read.

Are there any other efficient methods to keep track of what results does a paper contain?

Reading introduction or abstract of a paper does not count as they are written in cryptic manner.