# Questions tagged [discussion]

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

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questions with no upvoted or accepted answers

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### Deprecating an old link

This question comes from this list of edits: https://mathoverflow.net/posts/86827/revisions
An old answer included a link to a now-deprecated website (which has been taken over by a porn website); a ...

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### Recent question considered off-topic?

I recently posted this question, which was flagged as off-topic:
How to approach the stigma of not having a math degree?
I'm not sure why it was flagged. MO asks for questions about research-level ...

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### On a question previously posted on Math .SE

Some days ago I have asked this question but I got no response. Will it be ok if I post this question in this site (I am asking this because crossposting isn't generally welcomed in this site)? Also ...

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### I think I solved an old problem, can someone please check it for me?

Sorry if this is inappropriate to ask on meta, but back in April I updated an old answer of mine that is over two years old here, on the existence of a zero sum subset problem. I suspect due to how ...

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### Would this M.SE question that has received no answers be appropriate for MO? (or could it be tweaked into being appropriate?)

https://math.stackexchange.com/questions/667830/modern-research-into-grassmans-theory-of-forms
When I first posted it on MO, it received a downvote, so I figured there might be something wrong with ...

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### Why was this question (sorting a countable infinite set) deleted?

A recent question on the complexity of sorting a countable infinite set (Sorting of countabe set) was apparently deleted. I'm curious why.
(Certainly, the question was poorly written, with no ...

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### A mathjax issue with stars in super/subscripts

I encountered Topos associated to a category with glowing-red \*s in it. When trying to edit them out I discovered that whenever I try to replace an ...

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### Can I ask this question on Math Overflow? (Advice on how to get started)

I am thinking of applying for a maths PhD programme. I have more or less an idea of the subfield I'd like to research, but not much more than that. I'm looking for suggestions on how to properly ...

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### 1000 Questions by Dominic van der Zypen!

Amazing milestone! Our first $1000$-question user.
Question # $1000$:
"Edge sets on 𝜔 maximal with respect to chromatic number".

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### Is this soft question acceptable?

Edited version: What are great examples of comprehensively archived mathematical correspondence (including both handwritten and electronic items)?
Previous version : How should mathematicians archive ...

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### Criteria for Top question?

I posed a question on Mathoverflow which got no votes, but it made it to Top question.
I supplied an answer, while nobody else proposed an answer.
How come it made it to Top question?

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### Questions on the mathoverflow newsletter

Good morning, everyone...
I have a little question about the mathoverflow newsletter.
Ever since I subscribed to it, I used to find it every Tuesday in my gmail inbox, but I have not received the ...

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### Question on topic for Mathoverflow?

My question, asked months ago, was well received. Now...
I'm wondering if this question is on-topic for MathOverflow:
Consider a semi-Riemannian manifold $\zeta^{2,2}$ with metric, $g=\frac{dxdy}{xy}+...

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### How should questions about (various meanings of) coverings be tagged?

The word covering has various meanings in mathematics. Quite often choosing a tag-name which has several unrelated meanings can lead to problems - typically bunch of rather unrelated questions end up ...

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### Thread for asking about suitability of math.SE question on MO?

Often there are questions of the type: "I have posted this question on math.SE. No satisfactory answer so far. Would this question be suitable for MathOverflow?"
People ask this in various places:
...

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### Border line MO-Math Stackexchange

Occasionally there are questions that are beyond the level of Math Stackexchange(they get few views and no responds) but also for whatever reason the consensus on MO is that such questions don't quite ...

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### What is the best time of the year to ask a question?

I wonder if there is any data on whether questions receive more attention in some months, while less in some others.
Is it better to ask during Christmas or the summer break, at the beginning or at ...

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### My question is flagged as being potentially subjective and therefore liable to be closed. Opinions please

I have a 'soft' question as follows:
'How did you first become interested in becoming a mathematician?'
The sort of answers I'm seeking are factual rather than subjective,
e.g.
I first ...

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### Migrating question from Math SE

I posted this question on Math SE a month ago but it has had no responses even though I also placed a bounty on it.
Whilst it is at graduate level, I'm unsure whether to ask it here since the ...

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### Is this measure theory question suitable for MO?

A moderator at Mathematics StackExchange asks if this question would be suitable for migration to MO: https://math.stackexchange.com/questions/1331258/using-a-sequence-of-measures-to-create-simple-...

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### I want to post a question on MathOverflow, but is it suitable?

I posted a question "A question on the remainders of integer division" on Mathematics one week ago. There is not any answer until now.
I do not think it is a question of professional level, but it ...

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### What has been the problem with the question?

I have some questions relating to this post. Actually I can't seem to figure out what has gone wrong with the question.
In my view, it was not off-topic. Perhaps my representation may be vague. In ...

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### Vote to reopen question regarding connected and total domination on the queen's graph

[Note: Now reopened!]
The question concerns the limit as $n\to\infty$ of $\gamma_t(Q_n)/n$. It is known to be between $\frac{4}{7}$ and $\frac{2}{3}$.
As connected and total domination the queen'...

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### Closing one's own question

Sometimes I ask a question and a helpful commenter points out that the question is ill-founded. This seems like a straight-up case for closing the question, but unfortunately the best I can do is vote ...

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### Non-research level question

I just gave an answer to the following question:
https://mathoverflow.net/questions/153157/a-lemma-on-the-growth-of-the-number-of-certain-edge-paths-for-a-given-train-trac/153170
but I think the ...

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### What happened to my MathOverflow account?

I posted this question from my account two days ago. Now suddenly, I saw I don't have an account any longer. I tried to log in and Overflow created a new account. Can someone please shed some light on ...

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### Planar geometry on MO

"Planar geometry" here is 2-dimensional Euclidean geometry, usually used as Olympiad geometry problem, its objects just be a bunch of lines and circles, it has no Combinatoric aspect and not ...

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### Would this question be appropriate on the main site?

I would like to ask a "big list" style question on the main site.
The question would be "How do we pronounce the names of famous mathematicians?".
Each answer would be an audio ...

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### A case when the closure reason might be unclear to the OP (and possibly others)

There is this question I have read about the 3x+1 conjecture so I am thinking of 3x-1 instead closed as not research level.
It is about replacing $3n+1$ with $3n-1$ in the Collatz conjecture.
OP shows ...

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### Efficacy of bounties by reward amount

Is there any data available on how often bountied questions receive answers? Can we stratify by bounty amount, to see if we're actually 'getting more bang for our buck' when we bounty higher amounts?
...

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### Clicking question author username sends to revision history

This happens with Every mathematician has only a few tricks: the link with the author username leads to the revision history. I checked several other questions, including some cw (this one is cw), ...

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### About votes by 101 users

Related: this
So I have just run a query at SEDE, and get the following data:
Upvotes cast by rep 101 users: 66626
Upvotes cast by all users: 1777003
Hence by simple calculation, we get $$\frac {...

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### What if I posted a (perhaps...) nice answer, but to the wrong question?

First of all, I apologize for asking this question if the topic has already been debated on the MO.meta, but I did not succeed in finding anything similar: and now the question.
Nearly a year ago I ...

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### Not a duplicate, but

Just encountered two questions,
ADE type Dynkin diagrams
and
Is there a common genesis for ADE classifications?
IMO, they are very-very similar, but this is not really a duplicate case, rather, ...

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### A tribute to the owners of the set-theory golden tag

In this slightly unusual and relaxed post,
I would like to express my admiration for
our all-time top rep user Joel David Hamkins,
in the spirit of the jon-skeet-facts post
from the sibling ...

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### How to tag questions about databases of mathematical objects?

On MO there were several questions regarding databases of (some type of) mathematical objects. You can see the list of questions I was able to find here.
What would be correct tag for such questions? ...

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### Migrated question and email notification

It seems that a migrated question does not appear in the email notifications of its tags.
Question: Should it appear?
By migrated question I mean a question migrated on mathoverflow, and by e-mail ...

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### Is this ("Is this a good research question?") a good MathOverflow question?

I apologize if this has been covered before. A cursory search of meta.mathoverflow does not reveal it.
There are reasons not to make research topics public. (I have some topics that I am not ready ...

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### Advice to young mathematicians question on Mathematics Stack Exchange

(I don't know if this is on-topic on MathOverflow-meta. In case it is not, please, let me know.)
I see that many active users of MathOverflow are not as active on Math Stack Exchange; for this reason,...

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### How to change the direction of an answer thread

I asked this question, with the hopes someone might help me with the algebraic proof I was working on towards the stated conjecture. Based on this meta thread, my original question got changed — for ...

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### Tag excerpt/wiki for computational topology

On MSE I am working on a tag excerpt/wiki for a currently non-existing computational topology tag. Please see this post on MSE Meta:
https://math.meta.stackexchange.com/questions/13511/tag-creation-...

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### Bumping of obviously offtopic questions

Today, https://mathoverflow.net/questions/28487/is-there-a-concept-equivalent-to-factorial-that-uses-addition-rather-than-multip was on the front page. I was about to flag the question, only to ...

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### What subject specific tags could replace the tag 'divisors'?

A few names are used in different subjects in mathematics with completely distinct meanings. A couple of common examples are "spectrum" and "regular". Sometimes, this creates ...

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### Why are the number of profile views displayed?

Is there a reason why the number of profile views is displayed when I go to my profile? I don't think it is a bad thing, I just don't see the purpose.

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### Why was 'How to Discover Counterexamples and Required Objects' put on hold?

Please forgive me if I did not post this correctly. I'm writing following https://mathoverflow.net/help/reopen-questions. I would like to ask for my question to be reopened: https://mathoverflow.net/...

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### Announcement: A stacks project for category theory

I'm releasing today The Clowder Project, a tag-based wiki and reference for category theory powered by Gerby.
I plan to eventually make it into a comprehensive resource for category theory, in the ...

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### Should community wiki answers be eligible for bounties?

I posted an answer to this question Kepler conjecture: Are there only two most efficient packings or could there be more than two? summarizing various points made in the comments into a coherent ...

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### A super easy way to speed up MathJax loading with LocalCDN add-on

I found a very neat way to speed up MathJax execution times and I thought about sharing it with everyone here. Typically whenever I start my browser I have to load up all of these MathJax resources ...

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### Asking whether this question will be suitable and hence answered by people on MO ? ( I will use career and advice tag)

I am thinking of asking this question on the MO website which is due to the fact that how should I write/ explain the gap in my CV while applying for PHD programs in 2022.
Very brief of the situations ...

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### Is asking about name of a curve a research level question?

In my opinion this post is not a research level topic but surprisingly it has been received 22 votes.
Is the linked post a research level question and appropriate for MO?
I think it is more ...