AoPS Wiki:Naming conventions
The follow page creates guidelines for the systematic names of articles.
The search engine is case-sensitive. Like in normal English usage, all proper nouns should be capitalized.
- Capitalize all theorems, lemmata, postulates, axioms, etc.
- Nothing else but proper nouns should be capitalized.
- If in doubt, contact a sysop.
More discussion here
For contest pages, the year should go before the contest name. If there is a compilation sheet of all of the problems, it should be located at YYYY Contest Problems. All of the solutions go to subpages at YYYY Contest Problems/Problem #. The answer key goes to YYYY Contest Answer Key.
Every non-trivial word in a section header should be capitalized without exception, like the title of a book.