# All Questions

1,761
questions

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### Locating a question on zero-one vectors in the kernel of a matrix

I remember there was a question posted to MO about maybe two months ago or so which was, essentially, about the existence of zero-one vectors in the kernel of some matrix. Can anybody help me to ...

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182
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### The tags (transcendence) and (transcendental-number-theory)

There exist tags transcendence and transcend.-number-theory (probably shortened from transcendental number theory to fit 25 characters limit for the tag name). At the moment, the tag-info is empty ...

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0
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91
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### How to Ask Multiple Very Specific Questions About New Applications of an Old Theorem

This question is a different flavor of this one, the difference being, that I am not looking for help in understanding something.
My "problem" is, that while ramping up my knowledge about the ...

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0
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132
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### How to ask a question on an accepted answer?

I had asked a question about 6 months ago and I had got an answer to the problem. Now, I have some questions on that problem. Can I leave comments for my questions there?

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98
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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'...

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91
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### 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.

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176
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### 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 ...

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254
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### 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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293
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### 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 ...

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584
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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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274
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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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544
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### Risqué and uninformative title.

I found the previous title of
Realizing proper pure octonions as conjugates
slightly risqué and also uninformative. So in the spirit of being bold I just changed it to something mathematical. I'...

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0
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111
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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 ...

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0
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110
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### 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 ...

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355
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### 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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473
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### 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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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 ...

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129
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### 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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174
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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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332
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### 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. ...

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0
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96
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### 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
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102
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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
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### 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" ...

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2
answers

494
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### Proper protocol for edit wars

In this question, I made an edit to change the formatting because I thought it was inappropriate (related meta discussion).
The author swiftly reverted my edit to restore the original version, ...

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1
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563
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### 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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2
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305
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### 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 ...

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2
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242
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### 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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1
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199
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### 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 ...

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2
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286
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### 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 ...

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2
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281
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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 "...

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2
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236
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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:
...

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2
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1k
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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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217
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### 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 ...

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1
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582
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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 ...

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1
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190
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### 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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1
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347
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### 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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1
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160
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### 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 ...

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2
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222
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### 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 "$x\lt y$...

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1
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119
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### 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:

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2
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164
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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 ...

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1
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218
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### 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?

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1
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352
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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

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1
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168
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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?

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1
answer

177
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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 ...

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1
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459
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### MathOverflow's Facebook page

The Facebook page for MathOverflow is currently pulled from the Wikipedia article. The Twitter account has no avatar and only 90 follows. The most active is the Google+ account, which posted about ...

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1
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356
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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
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154
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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?

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1
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318
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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 ...

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2
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297
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### Not accepting answers

In my opinion, there is a moral obligation on those asking questions to do something with the answers: Either accept one, or to explain why none of the answers is satisfactory. I do not see this ...

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1
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166
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### The meaning of the badge "Sportsmanship"

I would appreciate if you explain on the meaning of the badge "Sportmanship".
It is described as below but I can not understand what does it mean. May you describe this badge in an equivalent words?...