# All Questions

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### Display of differences between revisions

Being impressed by the visualisation of differences between revisions on this site (and MSE as well) I cannot resist to ask: what javascript libraries are used for this? I know that MathJax is used to ...
• 1,207
1 vote
83 views

### Problem with "move to chat" function?

I seem to be having a problem with the "move to chat" button. In a recent question, I received the "consider moving to chat" prompt, and I clicked the proffered button; however, it didn't work. ...
• 21.9k
1 vote
204 views

### What do you see to upvote an answer?

Question is as in the title? What makes you to up vote an answer? Most of my answers are with $0$ upvotes. I am trying to understand the reason. One of the reasons could be that mathematics that I ...
• 5,293
1 vote
211 views

### Area 51 Proposal: Math Challenges

On September 1st, I started a proposal on Area 51, for users to share, discuss and answer mathematical challenges that they have. I did this because I felt that these types of problems have no place ...
1 vote
123 views

### Ability to flag for migration to other stackoverflow sites

Currently on mathoverflow, flags can be set for questions to be migrated to meta.mathoverflow, math.stackexchange, and stats.stackexchange. However, there are often questions that belong on other ...
• 4,651
1 vote
174 views

### Is MathOverflow missing a tag for ODEs?

TL;DR: Is there a tag which is intended (only) for ordinary differential equations? If not, should there be one? The situation with the tags related to ODEs seems a bit unclear to me. AFAICT there is ...
• 4,390
1 vote
112 views

### Recommending to move the question to another site

I am trying to recommend to move the question to another SE site. When I press the corresponding button, the menu pops up which offers me choices: meta, MathSE, stats. And no more choices. How can I ...
• 77.4k
1 vote
199 views

### Synonym by a moderator which needs approval?

When I look at list of tag synonyms I see there a pending synonym rsk-correspondence $\to$ robinson-schensted-knuth and François G. Dorais♦ is listed as the creator. You can also see that this synonym ...
• 4,390
1 vote
77 views

### Does it make sense to have both "surfaces" and "curves-and-surfaces" tags?

I have noticed that there currently exist tags surfaces (with description "A surface is a two-dimensional topological manifold. The term can also be used to describe a smooth surface, depending on the ...
• 4,670
1 vote
78 views

### Accepting an answer to a closed question

To my surprise I discovered that I can accept an answer to my question that has been closed. I am not sure whether it is "good" or "bad", my question is whether it is an intended feature and if yes, ...
• 16.2k
1 vote
66 views

Simple question: should the tagging of a question cover answers? Suppose I asked a question about a mathematical problem and in the answers contained for example: pointers to literature algorithms ...
• 11k
1 vote
107 views

### What should I do if I want to ask an almost duplicate question?

There already exists a question very like the one I want to ask, with a very partial answer by the OP. I want to ask the same question but restricted to a special case, for which I hope more can be ...
• 151
1 vote
66 views

### Doubled backslashes in old posts [duplicate]

There is a post from 2013 addressing what appears to be a similar issue, but it is reported as fixed, so I guess it's not exactly the same. I have noticed a few posts recently in which backslashes ...
• 7,373
1 vote
102 views

I'm so sorry, but I got logged out of my account: https://mathoverflow.net/users/10290/erin-carmody I tried to log back in but have changed my email several times... It might be an impossible task. ...
1 vote
197 views

Yesterday I asked a question seeking published references studying popular games, to start building up an undergraduate research program. Today I woke up to find it had been made community wiki. Now, ...
• 21.2k
1 vote
201 views

### Migration site list lacks entries

The question What is the integral of temperature over space called? obviously belongs elsewhere. Most probably the proper place is physics.SE, but in any case not here on meta, not on math.SE, and not ...
• 16.2k
1 vote
40 views

### Should I accept an answer to the "concrete" part of my question and ask another one about the "vague part"?

Suppose I am trying to prove a certain statement $S$ and find that a certain plausible statement $T$ implies $S$. However, I don't think that they are equivalent, and so there are possibly other ...
• 4,875
1 vote
67 views

### Can one un-(vote to close) a question without voting to reopen?

Scenario (and it actually happened): I was first to vote to close a question as too broad; OP modified the question in such way that my objection did not apply anymore; this modification resulted in ...
• 16.2k
1 vote
176 views

### Why do we need the general-mathematics tag?

I recently came across the general-mathematics tag. It has no usage guidelines, nor do I think it should exist. Do any of you know the historic reasons for its existence, or think it should stay as it ...
• 3,200
1 vote
193 views

### Is this combinatorial semigroup theory question suitable for MO?

The question is here. For convenience: Let $S=M_n(\mathbb{Z}_2)$. Let $D^{(n)}_2$ be the matrices in the rank $2$ $\mathcal{D}$-class of $S$. Find N_n=\left\lvert\left\{\begin{array} \, e &...
• 121
1 vote
91 views

### Formatting: Diacritics outside of Formulas

I recently tried to write the name of the French mathematician Gâteaux in the correct way, i.e. with a circumflex over the first 'a'. Using MathJax formatting inside inline math or in formula, that ...
• 11k
1 vote
79 views

### 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 ...
• 21.3k
1 vote
179 views

### 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 ...
• 4,390
1 vote
91 views

### 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 ...
• 11k
1 vote
132 views

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?
• 581
1 vote
98 views

### 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 vote
89 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.
• 23.2k
1 vote
172 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 ...
• 281
1 vote
253 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 ...
• 101
1 vote
291 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 ...
• 12.6k
1 vote
583 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 ...
• 2,395
1 vote
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,...
1 vote
540 views

### 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'...
• 18.6k
1 vote
111 views

### 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 ...
• 305
1 vote
110 views

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 ...
• 2,844
1 vote
352 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 ...
• 25k
1 vote
468 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 ...
• 3,161
1 vote
247 views

### 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 ...
• 11k
1 vote
126 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 ...
• 3,161
1 vote
171 views

### 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 ...
• 21.8k
1 vote
332 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. ...
• 1,971
1 vote
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.
• 8,394
1 vote
102 views

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

Why did my reputation decrease by 300+ points right after the system up-grading?
1 vote
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" ...
• 14.7k
559 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 ...
237 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 ...
196 views

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 ...
• 11k
279 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 ...
• 8,573
271 views

### 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 "...
• 1,508