I think that there should be a list of frequently asked math questions. Let a question be called a sub-duplicate of another question if it is that other question or it is closed as a duplicate of a sub-duplicate of that question (This definition is inductive.) We should have a list of questions together with their number of sub-duplicates with questions with high numbers of sub-duplicates at the top, so that new users know what questions are frequently asked. I think that this might reduce the number of duplicate questions on this site.

  • 8
    $\begingroup$ Relatively similar: List of Generalisations of Common Questions and Coping with abstract duplicate questions.. $\endgroup$ Commented Dec 3, 2022 at 0:08
  • 3
    $\begingroup$ New users don't search, either the whole site, or lists of common questions. I've been here seven years, and i can barely search the site. If you want to spend some effort on reducing duplicate questions, I'd say the best thing you can do is get familiar with the resources @martinsleziak lists below, and start using them to close duplicate questions. $\endgroup$
    – JonathanZ
    Commented Dec 3, 2022 at 13:38
  • 1
    $\begingroup$ This is a feature request, whereas the proposed duplicate is a discussion. $\endgroup$
    – mathlander
    Commented Dec 13, 2022 at 19:44
  • $\begingroup$ mathlander Your questions are natural for a user on this site who's been here six months, enough time to develop ideas to suggest for improvement. I appreciate your instinct to want to improve this site. But some of us have been on this ten, fifteen, even twenty times longer than you, and a lot of us have filled math meta with such suggestions. I encourage you to search first, and if your question isn't answered, only then ask. $\endgroup$
    – amWhy
    Commented Dec 13, 2022 at 19:45
  • 1
    $\begingroup$ Using a different tag doesn't make it any less of a duplicate, wrt the question you asked, mathlander. $\endgroup$
    – amWhy
    Commented Dec 13, 2022 at 19:46

1 Answer 1


I'll at least mention what already is available if you look only at the direct duplicates (rather than recursive duplicates). And let me mention various other lists that exist.

Here are some examples of such queries - they only count "direct" duplicates not "recursive duplicates". They are from this answer on Meta Stack Overflow: Most frequent questions for a tag combination - but the linked queries run on MSE rather than SO. You can use parameters of those queries to change whether you look at duplicates or links.

Creating a similar query with looking at all "recursive duplicates" in SEDE might be difficult. It goes beyond my knowledge of SQL. (Moreover, a query trying to do so for all posts at the same time would likely time out.)

Here you can find a query which looks at a single question and finds the linked posts: Get all interlinked questions. I have modified the query to look only at duplicates - and not all links. You can change the parameter Level to increase the depth of the search.


Not the answer you're looking for? Browse other questions tagged .