63 votes

Welcoming new user: on a recent question about connections

I just want to comment, I think at this point, fighting and unpleasantness about whether questions are appropriate is a much bigger problem for the site than the presence of less-advanced questions on ...
Ben Webster's user avatar
  • 43.8k
53 votes

A StackExchange website aimed at graduate students?

I believe it is impossible in general to distinguish questions asked by a graduate student and those asked by a mathematician in a domain in which they are not specialist. Since the latter are ...
Gro-Tsen's user avatar
  • 29.7k
35 votes

Welcoming new user: on a recent question about connections

I want to distinguish two different things that were said in the first comment: that the question was not research level and that the question should be migrated to math stackexchange. It is not ...
Will Sawin's user avatar
  • 133k
25 votes
Accepted

Can I ask a question on MathOverflow and also on another site?

Cross-posting is discouraged in general, because it can lead to duplication of effort by people answering on different sites. However, it is appropriate under some circumstances. Most of the advice ...
Tim Campion's user avatar
  • 60.2k
18 votes

If I can't get an answer on math.stackexchange.com or dsp.stackexchange.com, when should I post here?

Waiting a week would usually be considered reasonable.
Chris Godsil's user avatar
18 votes

Welcoming new user: on a recent question about connections

I note that frequently users complain about unexplained downvotes and anonymous downvotes. Discouraging comments from users who indeed make a comment of this nature ("this is off-topic") ...
YCor's user avatar
  • 60k
17 votes

How can we visually differentiate MathOverflow from MathStackExchange within the constraints of the new design themes?

EDIT: Some more information from Catija: This screen element is not currently customizable, so if we wanted it customized, SE would have to implement a new feature. Here Catija indicates that the ...
Tim Campion's user avatar
  • 60.2k
17 votes

How can we visually differentiate MathOverflow from MathStackExchange within the constraints of the new design themes?

As a data point for our Stack Exchange overlords, I have twice now tried to migrate a question from math.SE to math.SE because I didn't realize it was already there. I'd really like to get a striking ...
David E Speyer's user avatar
15 votes
Accepted

Mathematics and MathOverflow relationship

There is no formal connection. You may often see the same question on both sites because a lot of people cross-post (manually), a practice which is generally frowned upon, especially when the same ...
Todd Trimble's user avatar
  • 52.2k
14 votes

A StackExchange website aimed at graduate students?

It is doubtful that SE would allow another "mathematical" mathematics site to open. In fact some time ago (2012, so even prior to MO's move to the SE network) there was an Area 51 proposal for a "...
user642796's user avatar
12 votes

A StackExchange website aimed at graduate students?

Personal opinion: I think that the current system of having several of separate sites for different math-related topics (apart from MO and MSE, there are also related ones like scientific computing, ...
Federico Poloni's user avatar
12 votes

Questions seemingly/apparently/ostensibly too elementary for overlfow

The judgment of whether a question is considered on-topic or not for MO is made by individual MO users. If a question is closed but other users disagree with the reasons for closure, the latter may ...
Todd Trimble's user avatar
  • 52.2k
12 votes
Accepted

Type of content to be posted on MO and differences with MathSE

It makes sense to talk about the core communities of each forum, so that it becomes easier to understand the scope and the differences. Not being active on the mathematics forum, I will give my ...
Gerhard Paseman's user avatar
10 votes
Accepted

Is my question suitable for MO?

You have the makings of a good question. To make it acceptable, keep it brief, provide links, and do not add much that is not pertinent. I will use some of my questions as examples of what to avoid....
Gerhard Paseman's user avatar
10 votes

Any other site besides mathoverflow and mathematics stackexchange?

The reddit website has several forums dedicated to mathematics. The main math forum has a large audience but there are several others subs such as /r/learnmath, /r/homeworkhelp, /r/cheatatmathhomework,...
coudy's user avatar
  • 18.5k
8 votes
Accepted

Asking the same (subjective) question on Math.SE and MO

In general, cross-posting is frowned upon. And rightly so, it feels like an unnecessary duplication of effort, especially when the two communities intersect on a non-trivial subset of their users. To ...
Asaf Karagila's user avatar
  • 37.9k
7 votes
Accepted

If I can't get an answer on math.stackexchange.com or dsp.stackexchange.com, when should I post here?

The reason to wait a week or so before crossposting is to avoid having someone spend a lot of time trying to answer on one site, without realizing that it's already answered on the other. After a ...
Nate Eldredge's user avatar
7 votes

How can we visually differentiate MathOverflow from MathStackExchange within the constraints of the new design themes?

I suggest that we leave the job to Stack Exchange's design team. I'm not sure why we are supposed to come up with a solution ourselves; we are not professionals, and surely SE has someone on staff ...
Federico Poloni's user avatar
6 votes

Migration of a detailed answer on MathOverflow Meta to Math.SE

You can't migrate an answer without migrating the entire thread, which is entirely inappropriate at this point. You can encourage Joel to take his question to Math.SE, and if there is no suitable ...
Asaf Karagila's user avatar
  • 37.9k
6 votes

How can we visually differentiate MathOverflow from MathStackExchange within the constraints of the new design themes?

According to the post on Meta Stack Exchange1 (and the stuff I was told in chat) it seems that color of tags can be changed. (To be more specific, Catija mentioned as an example of a site which ...
Martin Sleziak's user avatar
6 votes

A StackExchange website aimed at graduate students?

After carefully reading all your thoughts, I conclude that MO is a perfectly acceptable place for graduate students to post well-thought through questions. Yet, many graduate students (and even ...
R. van Dobben de Bruyn's user avatar
6 votes

Comment template for questions more appropriate for MSE

Recommending Math.SE - but with caveat This is an attempt to expand a bit the suggestion in the question, by adding some links saying what a question at Math.SE should look like. MathOverflow is a ...
6 votes

Appropriateness of question on delay differential equations

IMO, yes, that's definitely a graduate-level topic, and so appropriate for MO in that respect. (And I say that as a grad student who's studied delay equations a little.) AFAIK, cross-posting should ...
Ilmari Karonen's user avatar
5 votes
Accepted

Is this question migratable to MO?

I don't think the question would be good at MO. I would vote to close it as off-topic, and believe so would many others. I see no particular research angle to the question, and I would not consider it ...
Joonas Ilmavirta's user avatar
5 votes

Interesting (and not sufficiently answered) questions on math.SE

Another user suggested that I should advertise this question in MO also, so here comes. It is just a number theoretic curiosity spawned by an earlier question where small cases were handled by a ...
Jyrki Lahtonen's user avatar
5 votes

Interesting (and not sufficiently answered) questions on math.SE

Would someone who knows cyclotomic fields, or algebraic number theory more generally, please take a look at $A_4$ extension of $\mathbb{Q}$ ramified at one prime? The question asserts that an $A_4$ ...
David E Speyer's user avatar
5 votes

How can we visually differentiate MathOverflow from MathStackExchange within the constraints of the new design themes?

We could consider some kind of background theme. I think MSE's graph paper looks pretty good. Of course, the goal would be to come up with something good which contrasts to the MSE graph paper. If we ...
Tim Campion's user avatar
  • 60.2k
5 votes
Accepted

Undelete a post

While we can easily undelete the question, actually migrating it would be impossible. We can only migrate questions which are younger than 60 days. Given that the post had been automatically deleted ...
Asaf Karagila's user avatar
  • 37.9k
4 votes
Accepted

How often are questions "successfully" migrated to MSE?

As mentioned in the migration tag-info, users with sufficient reputation have access to some statistics about recent migrations (in the last 90 days). In the same place you can find a list of ...
Martin Sleziak's user avatar
4 votes

How often are questions "successfully" migrated to MSE?

From the moderator tools I can reveal that in the past 90 days there had been 61 migration attempts from MathOverflow to MSE and only 14% were sent back, which should be about 9 (I'm not sure about ...
Asaf Karagila's user avatar
  • 37.9k

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