All Questions

427 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
1 vote
0 answers
205 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 ...
user avatar
1 vote
0 answers
212 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 ...
user avatar
1 vote
0 answers
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 ...
user avatar
  • 4,661
1 vote
0 answers
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 ...
user avatar
1 vote
0 answers
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 ...
user avatar
1 vote
0 answers
200 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 ...
user avatar
1 vote
0 answers
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 ...
user avatar
  • 4,720
1 vote
0 answers
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, ...
user avatar
1 vote
0 answers
66 views

Tagging Answers?

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 ...
user avatar
  • 11.1k
1 vote
0 answers
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 ...
user avatar
  • 151
1 vote
0 answers
102 views

Can someone please help me login to my account

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. ...
user avatar
1 vote
0 answers
206 views

Why was this question made community wiki?

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, ...
user avatar
  • 22.3k
1 vote
0 answers
208 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 ...
user avatar
1 vote
0 answers
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 ...
user avatar
  • 4,845
1 vote
0 answers
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 ...
user avatar
1 vote
0 answers
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 ...
user avatar
  • 3,200
1 vote
0 answers
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 &...
user avatar
  • 121
1 vote
0 answers
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 ...
user avatar
  • 11.1k
1 vote
0 answers
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 ...
user avatar
  • 21.4k
1 vote
0 answers
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 ...
user avatar
1 vote
0 answers
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 ...
user avatar
  • 11.1k
1 vote
0 answers
132 views

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?
user avatar
1 vote
0 answers
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'...
user avatar
1 vote
0 answers
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 ...
user avatar
  • 281
1 vote
0 answers
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 ...
user avatar
1 vote
0 answers
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 ...
user avatar
1 vote
0 answers
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 ...
user avatar
1 vote
0 answers
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'...
user avatar
  • 19.2k
1 vote
0 answers
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 ...
user avatar
1 vote
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 ...
user avatar
  • 2,842
1 vote
0 answers
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 ...
user avatar
  • 25k
1 vote
0 answers
469 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 ...
user avatar
1 vote
0 answers
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 ...
user avatar
  • 11.1k
1 vote
0 answers
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 ...
user avatar
1 vote
0 answers
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 ...
user avatar
  • 21.8k
1 vote
0 answers
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. ...
user avatar
  • 1,971
1 vote
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.
user avatar
  • 8,464
0 votes
0 answers
96 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" ...
user avatar
  • 11.1k
0 votes
0 answers
57 views

Don't know the details to my old account, how can I find them?

My question is pretty much as in the title. I have an old account but no longer know which e-mail I used to set it up (never mind the password xD). Is there any way I can get the e-mail? I'm ...
user avatar
  • 748
0 votes
0 answers
122 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}{\...
user avatar
  • 157
0 votes
0 answers
231 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 ...
user avatar
0 votes
0 answers
124 views

Unable to delete this post

I have been wanting to delete this post for quite sometime. Unfortunately a user already answered and my reputation is so low that I can’t accept or delete it. Note my original question is nothing ...
user avatar
  • 1
0 votes
0 answers
228 views

Discouraging (Some) Upvotes

I'm tagging this as "discussion", not as a feature request, because I am quite agnostic about whether it's a good idea. That said: My subjective impression is that lately a lot of very bad/...
user avatar
0 votes
0 answers
78 views

Can I ask for advice or opinions about the choice of a variant of a theory?

Basically, I have 2 versions of a theory. This is like having two competing theories of complex numbers, one where $i^2=-1$ and the other where $j^2=1$ (hyperbolic numbers) or extending reals with $+\...
user avatar
  • 8,464
0 votes
0 answers
97 views

Please help me improve my Q&A and possibly reopen certain questions

Prepare to downvote me. But don't think of not downvoting me just because I pre-emptively self-deprecated myself to put a show of humility. Just pretend I'm as arrogant as I may be perceived to be in ...
user avatar
0 votes
0 answers
90 views

Why did my profile picture disappear?

I discovered few days ago that my profile picture is gone, had to reupload it. Did anybody else encounter this? Do you know the reason?
user avatar
0 votes
0 answers
186 views

I want to answer a closed question

Please reopen this question: A problem of an infinite number of balls and an urn I have a nice answer. (Added (DR): now re-opened. Please note there are ten deleted nonsense answers, which I imagine ...
user avatar
  • 8,464
0 votes
0 answers
106 views

Can I delete one of my posts that has been closed as off topic and received an answer with positive up-vote?

Can I delete one of my posts that has been closed as off topic and received an answer with positive up-vote? Should I delete all my posts that has been closed as off topic? (with/out answer)
user avatar
  • 3,905
0 votes
0 answers
83 views

"Voting corrected" seems incomplete

A few days ago, I was surprised to see a sudden increase in rep of 80 points in the space of a couple minutes. When looking over my profile today, I saw that I had lost 60 points, with the annotation &...
user avatar
  • 4,661
0 votes
0 answers
210 views

Would asking this question be permissible on the main site?

I have been working on a problem for days, that I previously mentioned on ComScience StackExchange. The answers were helpful. But, I need more information to develop a polynomial space algorithm. I ...
user avatar

15 30 50 per page
1
5 6 7
8
9