# All Questions

1,877
questions

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### Migration of questions to cs.SE?

This question just got closed as off-topic. As someone else had already commented there, it is really a computer-science question and thus clearly belongs at cs.stackexchange.com. But we currently don'...

1
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0
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91
views

### Delete the tag paperjs [duplicate]

How can we delete a tag, for example the tag paperjs? I tried to go the page for paperjs, but I didn't see a suitable option.

1
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0
answers

188
views

### Troubles with math preview: preview of formulas dies on me when writing a question or an answer

In mathoverflow I avoid asking questions and giving answers because the preview of mathematical formulas does not work: in the preview the formulas are shown precisely as I type them, with dollars and ...

1
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0
answers

257
views

### Can I ask a question here whose answer I did not get at math.stackexchange?

I have asked a question about solution of heat equation at math.stackexchange but no one answered. I think may be the question is too professional to be asked from learners. As this platform is for ...

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0
answers

337
views

### Recovering just for me my deleted question (or answer)

I am sorry to ask. There was an MO Q. by me (which addressed in an elementary way the infinity axiom, actually by just providing another formulation of algebraic flavor). I have carelessly deleted my ...

1
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0
answers

295
views

### Are we ready for a MathOverflow Overlay?

As varied as my participation in MathOverflow has been, I seem to gravitate towards number-theoretic issues involving $\phi$ and $\sigma$. I am considering writing an overlay article. This would be ...

1
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0
answers

591
views

### 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 ...

1
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0
answers

274
views

### 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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0
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112
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### Same email ID, multiple mathoverflow,net IDs

I had an ID on mathoverflow, stackexchange, which changed without my knowing. I used the anonymous way to answer/question, ie with just my email ID. So now I have two user IDs with the same email ...

1
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0
answers

110
views

### Log in problem on MO

I am unable to log in, unfortunately. After I click log in on top there appears a bubble on top of the page saying "Welcome back Frode Bjørdal, You are logged in, You are being redirected", and then I ...

1
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0
answers

356
views

### Why not restoring the + 10 reputation for questions but make each negative vote also count -10 reputation?

To maintain MO alive and well, we need a regular flow of good questions, and not too many bad questions. It seems to me that one has given more weight to the latter, forgetting the former which in my ...

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0
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477
views

### Reference Requests: Good Ways and Bad Ways

I would like to know of types of bad examples of MathOverflow questions that are tantamount to reference requests. I can think of two:
a) A reference request for something that is properly outside ...

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0
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247
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### Preferred Conciseness of Contributions

This is a followup question to Appropriate Reaction to a Failed Reference Request on MO related to Reference Request for Integer factorization with LP/ILP
I'm about to prepare an answer that ...

1
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0
answers

129
views

### Is it appropriate to ask for references and point to a blog with the same question

I wonder if the community would find it appropriate if I ask a question like
"
Is this or that known? It would be interesting for this and that reason. For details see our blog "blah" where we ask ...

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0
answers

178
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### soft-question tag for discussing mathematical best-practices

I asked a question about where people could store slides for future reference. As a discussion of best-practices in the Mathematical profession, I thought it was appropriate for the soft-question tag ...

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0
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333
views

### How to merge old mathoverflow account?

I know that this question has been asked and answered here: How can I log in into my old mathoverflow account? I have e-mailed the stackoverflow admins twice, but nothing has happened for 48h now. ...

1
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0
answers

96
views

### Too large font in the question names

Previously much more questions could fit one page in the question list. Currently the font is giant and the information is much less dense.

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0
answers

103
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### A trivia question: reputation dip [duplicate]

Why did my reputation decrease by 300+ points right after the system up-grading?

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0
answers

149
views

### Old account login issue [duplicate]

Here is a link to my old account, to which I used to log on using google:
https://mathoverflow.net/users/18263/vidit-nanda
When I try to log in with the same google account, I get "user35394" ...

0
votes

1
answer

567
views

### Is it a problem if I post a lot of questions?

The fuel of MO is the research level questions in mathematics.
In most (regular) users' summary I look, there are much more answers than questions, as if the opposite position would be doubtful ...

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votes

2
answers

324
views

### Why has my question on Aristotelian Spaces been closed for being 'insufficiently focused'?

My question on Aristotelian spaces begins with a motivating preamble and ends with a specific and focused request as to a property which I say would help characterise these spaces.
I've bolded this ...

0
votes

2
answers

253
views

### Downvoted on many questions asked in less than 60 seconds

I'm not sure why but it seems I've been targeted been down voting (I think by the same user) as it happened in all the questions I've asked in less than 60 seconds. I do not think this is due to the ...

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votes

1
answer

201
views

### How to deal with answers that don't answer anything?

I'm really hesitant to put this on the table, but what should be done with answers that to do not contain anything of help related to the question?
Specifically I refer to this.
It is not the fact of ...

0
votes

2
answers

294
views

### Name of the site

This site keeps getting questions from users who have mistaken mathoverflow for a place to ask questions about elementary mathematics. This is not a problem for me, as those too-elementary questions ...

0
votes

1
answer

293
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### Paper request(s)

Can we have a thread here where one might ask for help accessing to some papers ?
E.g. If someone has access to
https://projecteuclid.org/euclid.dmj/1077468920
Pairs of commuting matrices over a ...

0
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2
answers

290
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### Using other alphabets/writing sytems for author names

The following question
Fractional-order Rellich–Kondrashov Theorem
uses the Cyrillic alphabet to write "Kondrachov", and I wanted to know what was the policy of the website concerning this vaguely "...

0
votes

2
answers

237
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### Is there bias in the parity of MO reputation (or similar random parameter)?

Background:
Possibly wrong experiments with the bias of the parity of reputation
based on 2012-11 MO dumps show there might be some bias:
...

0
votes

2
answers

1k
views

### 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 ...

0
votes

1
answer

206
views

### MathOverflow feature: facilitating collaborations (algebra & other sciences)

One of my goals as an academic is to facilitate collaborations between my field ("pure algebra") and other sciences. We can't expect administrative staff (for instance, the Dean of Science) to help ...

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votes

1
answer

222
views

### Will this question be suitable for MO?

Recently I have asked two questions in MSE regarding the simultaneous solutions of the following inequalities:
$$x+y>p_{\pi(x)}+p_{\pi(y)+1}\tag{1}$$$$x+y>p_{\pi(y)}+p_{\pi(x)+1}\tag{2}.$$
My ...

0
votes

1
answer

583
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### What about the question "Hint for the Elementary Proof of the Inequality of Prime Numbers"?

See the link https://mathoverflow.net/q/165492/48849.
I think that my question (actually it is not originally my question, it is from someone on the AoPS) might suggest us to prove the Bertrand's ...

0
votes

1
answer

335
views

### Could MO use a minus sign for negative numbers?

I just noticed that negative vote totals are recorded with a hyphen:
In general within the StackExchange network it's probably not worth fussing over, but, here on MO, maybe we could use a minus sign ...

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votes

1
answer

360
views

### How can the question ban be removed:

The question is deleted and then I'm banned on MO after I asked the following question on MO earlier ( it's first asked on MSE then after sometime with no answer; I asked on MO) : https://math....

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votes

1
answer

165
views

### Should there be another tag for vector bundles in Algebraic geometry (over schemes)?

Should there be another tag for vector bundles in Algebraic geometry (over schemes)?
Some questions about vector bundles in the sense of algebraic geometry are given the tag whose tag description ...

0
votes

1
answer

172
views

### Are questions about whether a type of work/problem/solution or (one's own) arxiv paper is publishable on topic?

This is a bit related to the question:
Are "has this been studied before" questions on topic?
If I post something in the arxiv, can I ask for an opinion as to whether: 1) it's been done ...

0
votes

1
answer

227
views

### Inconsistency in MO votes

Yesterday I sent this question to a friend of mine. He told me he upvoted my question. When I go to my notifications, I don't see the vote.
But when I go to the history of my question, it can be seen ...

0
votes

2
answers

258
views

### A question of notation: what does $x\lt y\in S$ mean? [closed]

I've seen expressions like $x\lt y\in S$ used on this site to mean "$x\lt y$ and $x\in S$ and $y\in S$." This has me worried because I sometimes use $x\lt y\in S$ to abbreviate "$x\lt y$...

0
votes

1
answer

162
views

### One number on top of another with mathjax?

Probably a simple question, but how can I write my script in mathjax to show one number on top of another and with a minus sign in the left side?
Like this:

0
votes

1
answer

280
views

### Derivative of reputation score over time is identically zero [duplicate]

I've got a smattering of upvotes on my small number of answers but my reputation has never budged. Can someone explain why this is so?

0
votes

2
answers

166
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### What to do with questions that are partially answered

I have asked a question here.
Point of question was to understand about holonomy of gerbes. I have said that at the end of the question. I did said that there is some equality which I was not able ...

0
votes

1
answer

219
views

### Why is my question on hold?

Why is this question fine, but mine is put on hold? They seem to be very similar questions? Or is there some distinction that I'm not getting?

0
votes

1
answer

355
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### Is a perhaps somewhat cervellotic but not HARD question, regarding mathematical logic, suitable for MO?

This is the question:
https://math.stackexchange.com/questions/917492/can-the-logical-equivalence-of-two-different-statements-to-the-same-proposition

0
votes

1
answer

169
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### Apparent bug in reputation calculator [duplicate]

Mine appears to be stuck at 2321 -- even though my answer here keeps getting upvoted:
What definitions were crucial to further understanding?

0
votes

1
answer

425
views

### Serial downvoting

I received 4 downvotes within a short amount of time, I suspect it has been the same person.
I think a mechanism should be installed that no user $u$ can downvote more than one post with a positive ...

0
votes

1
answer

178
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### How to get better response on a problem (specific case study) and suggestions from mathematicians?

Why not enough response for this question. I guess there is too little interest in classical Fourier analysis. I have given enough motivation, which is about proving a possibly new result in Fourier ...

0
votes

2
answers

144
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### How is it possible to format a right-aligned sequence that has single and double digits so that the alignment is correct?

I have this MathJax sequence that I want to format properly in MathOverflow:
$$S_m =
\begin{cases}
\begin{aligned}
1, \quad\text{for m=1}\\
12, \quad\text{for m=2}\\
123, \quad\text{for m= 3}\\
...

0
votes

1
answer

369
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### MathOverflow in the classroom

My belief is that it is legitimate to cite some posts of the main site MathOverflow in the classroom of some course. Under this assumption I've wondered about the following question.
I don't know ...

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2
answers

155
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### Why is my question is closed and do I get views?

I have a question about my MathOverflow post: the minimum amount of x, x(x(125x + 300) + 240) + 64 is zero, what is 5 times of x?
Why is my question is closed and do I get views?

0
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1
answer

324
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### Why was the question on the history of $y=y(x)$ put on hold?

It seems that we are still accepting questions on the history of mathematics as well as on notation. Why was this one not considered to be of research level on these two tags? I have checked the help ...

0
votes

3
answers

274
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### How long are the lines?

I know that probably my place would be in a mental institution, but I'm a stickler about formatting my questions nicely.
For example, I like to start each sentence in a new line, and I don't like if a ...