# 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.

1,071
questions

**19**

votes

**3**answers

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### Is it time to replace links to the UCDavis arXiv frontend?

This question from March 2020 points out that many questions/answers link to papers at the http://front.math.ucdavis.edu/ frontend instead of at the arXiv itself, but that the frontend had been down a ...

**9**

votes

**0**answers

221 views

### New Stack Exchange site for proof assistants and automatic theorem provers

Stack Exchange will soon create the Private Beta site for Proof Assistants and Automatic Theorem Provers. If you want to see what a Stack Exchange site is like in its initial beginnings, want to help ...

**21**

votes

**1**answer

417 views

### Viewing reputation and badges is now opt-in

This announcement is a little late (see the discussion here), but in response to discussions over many years, we (the moderators and board) have implemented a change to the site where by default, ...

**13**

votes

**0**answers

208 views

### 2021: a year in moderation

As we say goodbye to the old year and welcome the new one, we have a tradition of sharing moderation stats for the preceding calendar year.
As most of you here are aware, sites on the Stack Exchange ...

**-2**

votes

**1**answer

124 views

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

I asked a question a couple of years ago on MathStackexchange which was quite popular. I would like to ask it on MathOverflow as well, since I'd be interested in the answers there. But I'm never ...

**26**

votes

**4**answers

1k views

### Should users be shown some basic information before posting the first question? [duplicate]

In an answer to another question discussing possibilities how to decrease the number of off-topic questions1 it was mentioned that: Perhaps we should force a person to read the rules before posting ...

**51**

votes

**34**answers

24k views

### News of potential interest to the MO community

Occasionally, there has been a suggestion to start a meta question to collect information that might be of interest to the MO community. This is an attempt to start such a thread.
Is there any news ...

**10**

votes

**1**answer

907 views

### About if questions in Research papers can be asked on MathOverflow

I am new to MathOverflow.
I am a master of mathematics student. I wanted to ask if questions in research papers ( regarding what I am not able to understand in the paper ) can be asked on ...

**11**

votes

**2**answers

597 views

### How to make welcoming comments on "homework-like" posts that will be closed?

We get posts here that are phrased as if from a textbook or homework; the one I have in mind is Find the recurrence relation, but my question is more general. Such posts will certainly be closed.
A ...

**7**

votes

**1**answer

317 views

### Top-voted questions for the year?

This link shows the top-voted questions:
https://mathoverflow.net/questions?tab=Votes
In a New Year's spirit,
how can I restrict this query to top-voted ...

**-3**

votes

**0**answers

142 views

### Is it possible to transfer a question from math stack exchange despite being temporarily suspended there?

I would like to transfer my question How do we find the structure of a set with the most equidistribution using entropy? to math overflow despite being temporarily suspended for one year due to ...

**22**

votes

**4**answers

707 views

### Customize the modal window for the first-time askers [duplicate]

When a user asks their very first question on a Stack Exchange site, they are shown a modal window with a short advice. The content can be either a generic message or it can be customized for a ...

**36**

votes

**3**answers

1k views

### Welcoming new user: on a recent question about connections

I think that the history of this question about connections is unfortunate. I would like to discuss (respectfully, without throwing blame around) whether/how a better outcome might have been achieved....

**0**

votes

**0**answers

93 views

### Hinting votes for CW contributions

I would like to learn about opinions about visually indicating votes for contributions to community wiki; what I have in mind is something analogous to the green button in the "menue-line" ...

**2**

votes

**1**answer

265 views

### What if I'm not sure about what area of math a problem lies?

One student asked me how to solve a problem and the only way of solving it that came to me seems hopeless to find an answers. It occurred to me that I may using a wrong approach to it. How could I ask ...

**0**

votes

**0**answers

116 views

### Is this partial differential equation on topic for Mathoverflow?

I came across this differential equation. I'm not sure if it's research level, but I think it might be:
$$u\frac{\partial}{\partial u}\left(u\frac{\partial f}{\partial u}\right) + v\frac{\partial}{\...

**14**

votes

**0**answers

1k views

### Why is the question about SO(4) embedding into SU(3) attracting so many troll answers

This question: Is SO(4) a subgroup of SU(3)? has already attracted 5 rude spam answers (most of which have been deleted by the time I posted this, but if you have enough reputation you can see them). ...

**8**

votes

**1**answer

390 views

### Two traffic observations and questions

The MathOverflow traffic (page views, visits, new visits) shows steady and possibly increasing activity
over the last $2+$ yrs. The chart below runs from 2019-Jul-07 on the left and 2021-Nov-04 on the ...

**123**

votes

**55**answers

17k views

### Best of MathOverflow, or papers inspired by MathOverflow

This is a place to collect MathOverflow success stories!
Was some of your research inspired by something on MathOverflow? Do you know questions & answers that led to interesting research? ...

**0**

votes

**0**answers

225 views

### "overestimates topoi" and research level

I wonder now and then, why this question is still open
Did Grothendieck overestimate topoi?
Usually, MO's members tend to be very strict about what is and what isn't a good question.
But why is this ...

**2**

votes

**0**answers

308 views

### 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 ...

**61**

votes

**1**answer

8k views

### PhysicsOverflow just [in 2014] went live [closed]

The new site is now up and running (outside the SE network) here
https://www.physicsoverflow.org/
PhysicsOverflow is meant to be some kind of a rebirth of the untimely passed away Theoretical Physics ...

**25**

votes

**2**answers

932 views

### Request from PRIMES to keep an eye out for their problems

On m.SE last year there was a problem with someone cheating on the entrance problem set for the PRIMES high school research program at MIT. Selection for PRIMES for this year has begun, and they're ...

**14**

votes

**0**answers

585 views

### To which extent can one modify another's question?

One highly off-topic question of real analysis was asked in the main site by a new user. One user sent, 1 hour later, a long answer going far beyond the the question, and then, 12 hours later, edited ...

**2**

votes

**1**answer

148 views

### I can not find one question I have already asked

I had already asked a question as follows:
"Is there a one dimensional foliation of a two dimensional manifold whose foliation groupoid is diffeomorphic to a 3 sphere with two north pole. The ...

**24**

votes

**2**answers

3k views

### Asking a question you know the answer to, but not answering

There has been an apparent case where the question poster asked a question that had been answered in their own paper from about 10 years before the question. This would not be a problem if the ...

**4**

votes

**0**answers

289 views

### 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?

**4**

votes

**0**answers

169 views

### How to find out why a post was deleted

It would help to know why a post was deleted, I believe in this case automatically by a MO monitoring robot. I am not judging the decision, but would like to know why, to avoid asking such questions ...

**17**

votes

**4**answers

870 views

### Should we blacklist or delete the "research" tag?

Should we blacklist or delete the research tag?
This site is about mathematical research, so I don't see how the "research" tag is helpful, any more than a "mathematics" tag would be helpful.
Of the ...

**3**

votes

**1**answer

163 views

### Answer converted to comment, then reverted to answer

Earlier today, this answer to this question was converted to a comment by a moderator. The same moderator subsequently reconverted the comment back into an answer an hour or so later. One of the ...

**-7**

votes

**2**answers

444 views

### Why was my probability question closed?

Why was my question closed here? Probability every team successfully presents a solution
At a summer math program a contest is held for $n$ teams. Each team, composed of $n$ individuals, is given the ...

**4**

votes

**0**answers

373 views

### 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 ...

**18**

votes

**0**answers

725 views

### Why is the "last seen 96 years ago" feature gone?

User homepages used to display the information "last seen ... (min/days/...) ago". It appears this feature is gone now.
I found it useful, and while it does divulge some otherwise ...

**3**

votes

**0**answers

194 views

### 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 ...

**-3**

votes

**1**answer

285 views

### A fuller story of up/down-voting

MO-participants should appreciate the difference between information about +1 vote and +4 vs -3 votes. This is especially the case of closed questions.
I hope that MO will implement the more ...

**7**

votes

**2**answers

417 views

### What are the exact mechanics of the vote for MO moderators?

The election for moderators is currently going on. Three new moderators will be elected.
On the election page you are allowed to rank your choices of the candidates. It is a little unclear whether you ...

**5**

votes

**0**answers

260 views

### Help center text references a thread but doesn't indicate which one

In the "What about open problems?" section of https://mathoverflow.net/help, the last line says "To join the discussion about how MathOverflow should deal with open problems, go to this ...

**8**

votes

**1**answer

429 views

### Why is Math Overflow a .net website unlike all the other sites which are .com websites?

As stated in the title, MathOverflow is a .net website, unlike every other site I've seen in the SE network, which are all .com sites. Why is MathOverflow the sole .net site of Stack Exchange?

**2**

votes

**1**answer

419 views

### Rationale for moderator deletion of a non-spammy, off-topic question

The Euler quote question "Why are people hanged if they talked" has been deleted by a moderator. I have the impression this is a new practice (correct me if I'm wrong), that deletions of off-...

**2**

votes

**0**answers

172 views

### 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 ...

**5**

votes

**1**answer

815 views

### Rationale for migration to MSE of a well-received question on MO

I was a bit surprised (annoyed?) by the migration of this question from MO to MSE. Yes, the question could have been asked on MSE, but it was asked on MO, received much attention there, with a high-...

**18**

votes

**2**answers

796 views

### Using MathOverflow to help with referee work

Suppose I am refereeing a paper and wish to remain anonymous as referee. Suppose I had trouble understanding some of the proofs in the paper and made a post on MathOverflow and received a very helpful ...

**1**

vote

**0**answers

151 views

### Self advertising and posting a candidate constructive proof

I would like to learn about appropriateness of posting a candidate constructive proof that decides a conjecture or open question and asking for counter examples that render the proof incorrect.
The ...

**2**

votes

**1**answer

211 views

### My question is removed

Recently my question entitled "Non existence of a parametrically compatible metric to a complete geodesible vector field on $\mathbb{R}^2\setminus\{p,q\}$" is removed. What is the reason?

**2**

votes

**2**answers

301 views

### unaccepting an answer, and then accepting own similar answer

Happened to me recently, and I wonder whether this is acceptable kind of behaviour, and not basically stealing ideas to get points.
In that particular case the person who asked the question appears to ...

**14**

votes

**1**answer

531 views

### How to @ a user with non-Latin characters?

When typing comments, it's useful to use the "@" system to alert a user to a comment (and also to make it clear to a 3rd party who you are addressing a comment to, as comments have no "...

**1**

vote

**0**answers

197 views

### What is the correct action if the OP finds an answer incorrect (with a recent example)?

While I certainly think that the OP of the question Non trivial zeros of Riemann zeta function definitely abuses MO in a couple of ways, still I believe it is a good example for the question in the ...

**15**

votes

**5**answers

595 views

### What should the modal window for first-time askers say?

When a user asks their very first question on a Stack Exchange site, they are shown a modal window with some introductory advice. As explained in the March 2020 announcement of this feature, there is ...

**28**

votes

**1**answer

957 views

### Prosus' acquisition and its effect on MathOverflow

Just saw the PROSUS acquisition news of StackOverflow. Does it have any effect on MathOverflow? In what way would it help or not help MO? Thanks beforehand.

**21**

votes

**2**answers

713 views

### How do off-topic question askers find MO?

Apologies if this has been addressed on Meta before (it's a little hard to know the right keywords to search for Meta questions with).
Question: Has there been any systematic attempt to try to figure ...