# 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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### Subquestion of Original Post

On this question, I asked broadly about computing the Gauss Legendre quadrature for large N. However, I've mentioned there in the "edit" section an algorithm I've found on the web, which theoretically ...

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### Is asking for good review papers a good question?

I think that generally speaking asking for papers might be a non-research issue. If it's merely a google issue, then it shouldn't be in MO.
What about Survey/Review papers? Obviously those are hard ...

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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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### Algebraic Geometry Chat Room

At the request of Denis Nardin, I have started an MO algebraic geometry chat room at http://chat.stackexchange.com/rooms/23540/algebraic-geometry. For now I am the room owner, but I am happy to let ...

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### Migrating a manifold learning question from CS theory to MO overflow

I just opened the following question:
Are there any learning algorithms with any provable guarantees for manifold learning or manifold regularization?
the question is mainly about algorithms and ...

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### Can we bring back the question about Gauss-Legendre nodes and weights?

The question
Computing Gauss Legendre Quadrature for Large N
was voluntarily removed by its author, after I implied (with a link to Wikipedia) that the answer was trivial and well-known. I have ...

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### Should we try to re-start manual deletions or is the situation fine anyway?

On MO 1.0 we had, after some discussions and conflicts but still, what I think was a quite smoothly and efficiently working process of deleting "bad" content.
It seems with the move to MO 2.0 this ...

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### Is there any way I can get a moderator removed for misconduct?

One of my posts that answered a question (for those who can see them now, they are at Is there some known way to create the Mandelbrot set (the boundary), with an iterated function system?) was ...

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### a spate of deletions by "Community"

18 minutes ago (at time of writing) a whole swathe of questions appear to have been deleted, some of which seemed not to be obviously sub-par or off-topic, and some of which had a net rep scoire of 0 (...

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### Probability question migrated to stats.stackexchange

What has happened to the following question?: https://mathoverflow.net/posts/202242/revisions
Firstly, it looks like a reasonable question to me (although the notation could be improved). Why was it ...

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### Editing etiquette

What are some general guidelines for editing a MathOverflow post? Are there some "do"s and "don't"s I should know about?
(The material that was previously in this question box has been moved to an ...

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### Statistics showing that more reputation for questions leads to better questions

One of the more controversial aspects of the transition to MO2.0, for myself at least, was the reduction in the reputation added for upvotes on questions asked from +10 to +5, while retaining the ...

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### Is there a way to find which MO questions/answers point to which others?

Every once in a while, an old question of mine (e.g., "$C^1$ isometric embedding of flat torus into $\mathbb{R}^3$"—approaching 5 yrs old) sees a minor flurry of votes. I presume this is because ...

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### Should I add a hypothetic solution of a partial problem in my answer or ask a separate question whether this hypothese holds?

In the MO-question on a lacunary series I wrote an answer (really: a comment) having the hypothese about an interesting fact (the function $d(x)$ as difference between the OP's function $f(x)$ and ...

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### Should I edit this question or make a new question?

Should the Grothendieck ring of varieties be K_0 of numerical motives?
I want to change it to:
1) Asking about after tensoring with $\Qb$
2) Asking if there is a map in some direction and if ...

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### Is MathOverflow saturated?

I am playing with the Stack Exchange Data Explorer to compare some MathOverflow stats to arXiv stats. I was surprised to see, that in the last 4 years there was almost constant activity (measured by ...

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### Is it appropriate to ask why a textbook on nonlinear algebra not well known?

I am wondering if it would be worthwhile to ask why a certain textbook and/or its authors (Dolotin and Morozov) are not well known.
From the description of the book:
This unique text presents the ...

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### Legitimate questions put on hold with no comments, no notification, and no chance to improve

My question was put on hold as unclear. I see a number of issues in this:
No intent was made to clarify the question via comments: it was just shut up. I consider it rude and unhelpful.
No reason was ...

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### Privacy of software-generated links to questions and answers

Recently I noticed that the software inserts the id
of the currently logged in user in the “share” link
of any MathOverflow question or answer.
When one is logged out, the “share” link comes out ...

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### How should we react to the existence of Math Educators SE?

As was previously announced at meta, there is now an SE site for mathematics education (MESE).
My broad questions is this: Should we react to this somehow?
(More specific questions are below.)
Does ...

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2
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### Illustrating posts of others

This issue arose in connection to the question Is this a $C^0$ foliation of $\mathbb{R}^2$? where a foliation is described formally. I thought it would help to have a picture of it. Initially I wanted ...

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### Proposed question: In the math history books of the future, what will be written about the years 1960-2010?

I was reading Stillwell's book, Mathematics and its History, and it got me thinking about how research developments in the last two decades (i.e. history for us too, except recent) would be "narrated"....

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### Why is "what is the difference between mathoverflow and math.stackexchange?" not prominently displayed?

It is a truth not-quite-universally acknowledged that a newish Stack Exchange user in possession of the knowledge that there are two sites named "Math Overflow" and "Math.StackExchange" will be in ...

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### Should there be a "statute of limitations" for closable questions?

Ever more frequently I find in the "close votes" review queue questions which are a few years old. Many of them already have accepted answers, and one can see that they were well received at the time ...

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### An interactive graph of MathOverflow tags

I created a graph of tags from Stack Exchange sites (including MathOverflow), TagOverflow.
It is a continuation on my previous project - plots with static graphs and (sadly) without MO (due to API ...

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### Merge complex-analysis and cv.complex-variables?

We have distinct tags complex-analysis and cv.complex-variables, of which the latter is the arXiv standard name. They seem to mean the same thing. Should they be merged?

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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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### Why is this still 'unclear'? [closed]

I recently asked a question that was subsequently put 'on hold' for being 'unclear'. I then edited it pretty drastically, and as far as I can tell there is nothing really unclear about the new version,...

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### Off _topic question

I would appreciate if you help me to underestand why is this question counted as off_topic.
Is realy all embedding of $F_{2}$ in $SO3$ an obvious question?
Thank you.
Edit: The MO question has ...

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### Hard to notice links in comments

This is a conscious duplicate :D
There are at least two more questions about it (The color of links in comments, On the current color scheme, and why it sucks - by the way, when trying to share them ...

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### Is it appropriate to edit a question for the sole purpose of having it highlighted?

I recently asked this question on the main site; after one day it didn't receive much attention and I decided to completely restyle it to make it more appealing, it got to the top of the "Recently ...

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### Lots of non research-level questions

There seem to be lots of questions appearing posted by users that either mistake this site for math.SE or do not know what the purpose of the site is. Would it be possible and a good idea to limit ...

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### How can a nonacademic with research level questions know which questions are research level?

I am actually still in High School, but I enjoy some more advanced forms of mathematics. I asked a question, and it generated a great response, and I really enjoyed the process, so must have come of ...

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### Famous questions

I noticed this
Famous MO Question.
Its title is:
"Difference between Principal Component Analysis(PCA) and Singular Value Decomposition(SVD)?."
It has zero votes, but is one of the most "famous" MO ...

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### Encouraging student users?

I recently made the transition from student to professor, and now I have a research student of my own. She keeps coming up with wonderful ideas, and I keep feeling like "surely this has been ...

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### What needs math?

I probably do not understand the forum https://mathoverflow.net/questions
Have noticed that if someone asks how to solve any equation - then this post with a question quickly removed. Okay. Suppose ...

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### Geographic distribution of people on MathOverflow

Is there a way to answer questions like the following, either by means of the StackExchange
Date Explorer or by other means?:
How many of the regular MathOverflow users (say, e.g., those who ...

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2
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### Should we start a "PolyMathOverflow" project?

Recently polymath projects seems to have stopped.
One reason for this could be that running such a project requires a lot of effort from at least one person running it.
I was thinking if it were ...

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### Should we create an Erdős tag?

I was thinking about creating tags for some famous or important people, like Erdős (that already exists, as pointed out by Joonas: erdos), that could be used for questions related to their work.
...

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### How to respond to premature crossposts from Math.SE?

There seems to be a general feeling (if not policy) to the effect that questions should not be simultaneously posted to MathOverflow and Math StackExchange (Math.SE). (I think there may have been a ...

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### Is this question appropriate for MO? (Recognizing cohomological ideas)

About two weeks ago I asked this question on MSE: https://math.stackexchange.com/questions/1085946/when-should-i-be-doing-cohomology. (Short version: what are some ways I can tell that some sort of ...

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### It is ok to ask the following question in MO?

Intuitively it doesn't look to me that much of a research level problem but, if it's not too trivial, I think it needs a bit of careful thought to answer my question. I don't know whether the ...

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### Can a person other than the author start a bounty for a question they like?

Suppose Jack is new to MO and he posts a good question. Tim has a lot of reputations in MO and thinks the question deserves more attentions. Why not we allow Tim to offer some of his reputations to ...

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### Is it appropriate to post question asking to prove NP-completness of more than one problem?

I believe that I discovered a method to generate several NP-complete problems. The NP-completeness proof is not immediately apparent to me. I did not find any reference in complexity literature to my ...

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### Mathoverflow lecture series using chat

This was something that came up recently in the homotopy theory chat room. Even if it wasn't to homotopy theory, has MO ever considered asking active users with interesting research to host lectures ...

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### Using bounty to prevent a question from being closed

There is a recent question Which universities teach true infinitesimal calculus? , suitability of which has been questioned by several users [I personally do not see in this question anything related ...

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### Bizarre Recent Upvotes

Just in the last day or so, the following extremely low-quality posts have all received upvotes:
https://mathoverflow.net/questions/190836/how-to-calculate-math-expectation
https://mathoverflow.net/...

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### How can I avoid getting a bounty?

I've posted an incomplete answer to the question
Does a left basis imply a right basis, without AC?
which has a 50 point bounty that expires soon. My answer is basically an idea that I think (but I'...

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### Winter Bash on MO?

I noticed that the Stackexchange sites are having a Winter Bash, and one of my friends recieved a hat on MSE. Why isn't this on MO? It'll be fun to have something like that here, wouldn't it? (I ...

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### How to find out what activity activated a favorite?

I have several favorite questions and it is a great feature that every time something happens around them, they are flagged up for me. However, when I turn to them, in most cases I cannot figure out ...