As far as I'm aware, the set of things that are on-topic at MO is a proper subset of the set of things that are on topic here.
For this reason I think questions should not be migrated to MO at all -- a question that MO would accept is one we should not reject in the first place. An exception to this can be made if the asker changes his mind and explicitly ...
While I did not handle that flag let me still comment on this (more generally).
First, yes, the post is off-topic here, yes, in principle something like this is on-topic on SO, thus one in principle one might consider migration.
However, please keep the following in mind.
A question that is migrated and then gets put on hold afterwards is something ...
Disclaimer: I am a MathOverflow moderator. I haven't had time to carefully read through all the opinions in this lengthy debate, but I thought it would be useful to add my perspective.
First, and I don't think anyone is denying this, there are valid reasons to migrate some questions from MSE to MO. Whether and when to do this is the question, and this is ...
The number of migration targets available for users is restricted, mostly to avoid incorrect migrations, as such migrations are difficult to undo and also impact another community.
Moderators can migrate to any site in the network. If you want to migrate somewhere else flag for moderator attention (flag, other) and suggest it.
The exact targets available ...
What I am suggesting is basically an elaboration of Asaf's answer, designed to clarify a few things--especially about when questions should not be migrated, except--possibly--at the explicit request of the OP.
A question that is receiving good answers on MSE should not be migrated. In particular, questions should not be migrated because the MO crowd wants ...
While such questions may be on topic on Mathematics Educators, remember that MathEd.SE is a very young public beta site. Generally migrating questions to beta sites is at least slightly discouraged. In the words of Anna Lear:
Migrating to beta sites isn't something we encourage because beta should be all about a site figuring out its own voice rather ...
Overall there are very few migrations.
Over the last 90 days there were only 8 migrations to Cross Validated (the statistics site) and also 8 to Physics (one of them rejected). Moreover there were 2 to our own meta site.
As regards incoming migrations there were about 30 from each of MathOverflow and Physics, and about 10 from each of Cross Validated and ...
Because there's no need to migrate it. It's a question that's perfectly good here and had answers that were interesting and relevant to this community.
If you want a canonical version on MSO for the site-wide FAQ (though I'm not sure there's a point - it's not exactly frequently asked), you can ask it again.
Grace Note is adding this part here, as another ...
... having asked it here, where it is not getting any attention?
In such a situation (MO-level post not getting any action at MSE), you, the question owner, can request migration to MO by flagging your post for moderator's attention.
The above situation is largely unrelated to the question of whether there should be an established migration path to MO. ...
Let's at least implement this for very popular arXiv-style tags (ag.algebraic-geometry and such) — it's useful both for migration and for (admittedly rare) visitors from MO asking questions here.
On the other hand, creating synonyms for numerous small tags (like recurrences used for less than 50 questions on MO) seems (to me) to be an overkill.
I'll take this time to remind everyone of the golden rule of migrations:
Don't. Migrate. Crap.
That question would not have survived on mathematica.SE, so there's no point trying to migrate it there. (Incidentally, the question has been asked on mathematica.SE, and doesn't appear to be doing so well right now.)
Onto the other issue. Adding a migration path ...
Just trying to give an alternative answer to that of Henning:
We should recommend a migration if the question is in a rather narrow field and there are only a few not-very-active experts on MSE, while on MO there is a better chance for an answer.
We should, however, wait a day or two before migrating in case someone does answer on MSE.
That can certainly be frustrating, and is a risk any time you offer a bounty. I don't know what your background is, but please note that MathOverflow is intended primarily for professional mathematicians and graduate students doing cutting-edge research. A sufficiently interesting question from outside that community will sometimes get a useful answer, but ...
Here's a step-by-step:
Wait a sufficient number of days. (At least one week.) This is just in case someone on Math.SE can answer your question.
Flag for moderator attention. Request the moderators to move the question to MathOverflow.
At this point, one of two things may happen (though it may take a few days).
One of the Math.SE mods with some expertise ...
I'd suggest closing as duplicate with a generic Q/A, which
makes clear that any continuation is possible
shows how to find continuations for simple cases (e.g., method of repeated diffferences for polynomial sequences)
informs how look for sequences on OEIS.org
At this time, I will have to decline this. In the last 90 days, there have been 10 migrations to Mathematica (with a 30% rejection rate), and 2 to Computational Science (with a 50% rejection rate).
As noted by Mad Scientist in the comments, we only open migration paths to new sites when there's a demonstrated need for the migration path due to high ...
Game theory questions
Out of the 11 questions tagged as game-theory, I believe the following could be on topic here:
Game-theory strategies to overcome holdout problem? (Migrated to cogsci.SE.)
What are the relevant properties of cardinal utility functions for defining a notion of expected utility for mixed strategies in games?
Markov Perfect Equilibrium ...
This is an important issue to get right.
The two math sites are clearly different and are aimed quite
deliberately at different but overlapping populations of users,
questions and answers. The same question, were it to be posted on
both sites, would receive very different kinds of answers and
levels of attention at the two sites. It seems to me that we ...
No and yes. Questions with open bounties cannot be closed for any reason, and this includes migration. In order for a question with a bounty to be migrated, the bounty would first have to be removed. Moderators can remove bounties (and refund the reputation in the process), but we only do this on a case-by-case basis. (See the MSO FAQ.)
User-driven migration will not be enabled until Academia.SE graduates. It's a SE policy to not enable user-driven migration to beta sites.
But moderators can migrate questions anywhere on the SE network. The tricky part is bringing the question to their attention. It is natural to flag for moderator's attention simultaneously with voting to close as off-...
If your question is overlapping the two disciplines, it may be best to split it into two distinct parts, and post these parts separately in the respective exchanges. Saying this, it is my opinion that the example in your meta post on the TeX exchange belonged solely here and not there, since no part of the question is about how to use LaTeX to get what you ...
I mostly agree that it'd be unusual for MSE questions to be migrated to MO.
Let me give one example of a question that I think should have been migrated. This question only received an answer because there was a post at meta.mathoverflow.net asking people to have a look at it. Migrating is a better way of achieving the same goal that cross-posting did.
If you truly think the question does not fit in on math.se and would be a perfect fit for scicomp.se, you can flag about it, but this occurs infrequently enough on math.se that including it in the related sites would not be practical. There are a number of other sites which we also don't include in the related list for the same reason.