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Search options not deleted user 4961

The question you're asking is designed to solicit opinions or best-practices on a particular topic, with the goal of reaching community consensus.

5 votes
2 answers
365 views

What to do about question which are inappropriately migrated from MSE to MO?

This question has been migrated from MSE by a moderator as well as closed for being off-topic. As I recall, MSE consider to have in principle a scope that encompasses the scope of MO (i.e. all math qu …
Benoît Kloeckner's user avatar
5 votes

MO-Hard Questions

This question from Riemannian geometry: Consider a two-dimensional sphere with a Riemannian metric of total area $4\pi$. Does there exist a subset whose area equals $2\pi$ and whose boundary has l …
6 votes

MO-Hard Questions

This question is a relative to the well-known question of the chromatic number of unit-distance graphs (so, thematically speaking, it lies between geometry and combinatorics with a Ramsey flavor). The …
32 votes

MO-Hard Questions

This question is a very nice topological one, a cousin of Brouwer's fixed point theorem and related to several questions in the literature: Suppose that $f$ and $g$ are two commuting continuous ma …
14 votes

Elementary questions

The reason for answers like "Too elementary/trivial", "Not research level" and so forth have been given in comment: they are meant to keep MO focused on its goal of connecting professional mathematici …
Benoît Kloeckner's user avatar
14 votes

Easy research-related questions, and closure reasons again

It seems to me that many borderline questions can plausibly be asked to itself by a professional mathematician, but look like no effort was put in it. I feel like I can ask a colleague possibly trivia …
Benoît Kloeckner's user avatar
10 votes

What is needed to succeed in keeping up the level of the site and retaining the good contrib...

I would like to answer on the closing policy, which in my opinion is a crucial point. I truly feel we are too permissive to allow MO to truly fulfill what I believe is its main goal: have a place wher …
Benoît Kloeckner's user avatar