Help center

Welcome to MathOverflow! Founded in 2009, we are a community of mathematicians focused on asking and answeringmathematical questions related to current research in mathematics.

For guidance on asking questions and online etiquette on MathOverflow, seehere.

Since 2013, MathOverflow is a nonprofit corporation hosted on the StackExchange network, as explainedhere.

Asking

• What types of questions should I avoid asking?
• What does it mean if a question is "closed"?
• What topics can I ask about here?
• What should I do if no one answers my question?
• I've thought better of my question; can I delete it?

Our model

• Code of Conduct
• How do I use tags to find topics I'm interested in?
• What is "meta"? How does it work?
• How do I delete all my contributions?
• What is this site’s policy on content generated by generative artificial intelligence tools?

Reputation & Moderation

• Who are the site moderators, and what is their role here?
• Why is voting important?
• What is reputation? How do I earn (and lose) it?
• Why do I have a reputation change on my reputation page that says "User was removed"?
• What are declined flags, and what should I do about them?

Answering

• How do I write a good answer?
• What does it mean when an answer is "accepted"?
• How to reference material written by others
• Why are answers no longer being accepted from my account?
• Can I answer my own question?

My Account

• I accidentally created two accounts; how do I merge them?
• How do I add or remove login credentials from my account?
• I lost my password; how do I reset it?
• How do I delete my account?
• How do I opt out of experiments on Stack Overflow?

Review Queues

• What are review queues?
• Why was I issued a review warning?
• Why was I suspended from reviewing?
• How do I use the First answers queue?
• How do I use the Close votes queue?