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EnglishHow Questions Are Organized on MathOverflow
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MathOverflow organizes its questions primarily by mathematical subject tags, then lets you re-sort the same pool by activity, bounty, hotness, and time window. If you want to find work in your own field, the fastest route is to open a tag such as ag.algebraic-geometry or nt.number-theory; if you want to see what the community is currently engaging with, use the Active, Bountied, or Hot views. The site is a Stack Overflow community for professional mathematicians, and the question list is the main entry point for browsing.
The main question list
The homepage presents a single feed of questions under the heading "Explore our questions." Each entry shows the score, number of answers, view count, tags, the asker's reputation, and when it was last modified. For example, a recent listing showed a gn.general-topology question with 3 votes, 8 answers, and about 3,080 views, modified 54 minutes earlier. This compact format lets you judge at a glance whether a thread is worth opening.
Above the feed, the Ask Question button is the entry point for posting. Alongside it are navigation links to Questions, Unanswered, Tags, Chat, and Users.
Browsing by tag
Tags are the core classification mechanism. The tag row on the question page lists the most prominent areas, including:
ag.algebraic-geometrynt.number-theoryreference-requestco.combinatoricsfa.functional-analysispr.probabilitydg.differential-geometryat.algebraic-topologygr.group-theoryrt.representation-theory
A "more tags" link opens the fuller tag list. Questions can carry several tags at once — a recent example combined gn.general-topology, boolean-algebras, and homogeneous-spaces — so a single question can surface in more than one subject feed. The Tags page is where you browse or search the full taxonomy.
Sorting the same questions
The feed offers several sort modes that change which questions you see and in what order, without changing the underlying content:
| View | What it surfaces |
|---|---|
| Active | Questions with the most recent activity (answers, edits, comments) |
| Bountied | Questions with an open reputation bounty |
| Hot | Questions currently drawing the most attention |
| Week / Month | Questions ranked within that time window |
| Score | Questions ranked by vote score |
The "Active 2 Bountied Hot Week Month" row in the page evidence shows these as tabs on the same list. Use Active to follow live discussions, Bountied to find questions where someone is explicitly asking for help, and Score or Month to find well-regarded older threads.
Unanswered questions and other entry points
The Unanswered link filters to questions with no accepted or upvoted answer — useful if you want to contribute an answer rather than read one. The Users page lists community members with reputation scores, which helps when you want to see who works in a given area. Chat provides a less formal space for discussion.
Personalizing what you follow
Signing up or logging in lets you customize your list of followed tags and communities, so the feed reflects your interests rather than the site-wide default. The page evidence shows the "Sign up or log in to customize your list" prompt in the community switcher; the specific mechanics of following tags are handled through that account flow.
A practical routine
- Open the Tags page and locate your field (for example,
nt.number-theory). - Browse that tag's questions, then switch to Active to see current discussion or Bountied to find open requests.
- Check Unanswered within your area if you want to write an answer.
- Log in and follow your core tags so future visits start from your own list.
The main pitfall is treating the homepage feed as the whole site: it is only the default sort of a much larger, tag-partitioned collection. Going through tags first is what makes the site usable for a specific research area.