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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 ...
Amir Sagiv's user avatar
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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 &...
Shaun's user avatar
  • 295
1 vote
0 answers
95 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 ...
Manfred Weis's user avatar
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1 vote
0 answers
80 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 ...
Seva's user avatar
  • 22.4k
1 vote
0 answers
183 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 ...
Martin Sleziak's 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 ...
Manfred Weis's user avatar
  • 12.3k
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?
Amir Baghban's user avatar
1 vote
0 answers
100 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'...
David Loeffler's user avatar
1 vote
0 answers
184 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 ...
chizhek's user avatar
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1 vote
0 answers
255 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 ...
Ather Cheema's user avatar
1 vote
0 answers
293 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 ...
Gerhard Paseman's user avatar
1 vote
0 answers
586 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 ...
David Benjamin Lim's user avatar
1 vote
0 answers
546 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'...
Sam Nead's user avatar
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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 ...
user3483902's 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 ...
Frode Alfson Bjørdal's user avatar
1 vote
0 answers
355 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 ...
Joël's user avatar
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1 vote
0 answers
475 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 ...
Gerhard Paseman's 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 ...
Manfred Weis's user avatar
  • 12.3k
1 vote
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 ...
Christian Stump's user avatar
1 vote
0 answers
174 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 ...
john mangual's user avatar
  • 22.3k
1 vote
0 answers
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. ...
Thomas Kahle's user avatar
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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.
Anixx's user avatar
  • 9,050
0 votes
0 answers
83 views

Should the dots used in lambda-calculus notation be typographically treated the way binary relation and binary operation symbols are?

Within this question we find the notation $\lambda f . \lambda g . \lambda x.f(g\ x)$, and that causes me to wonder about a point of LaTeX and MathJax usage. The code ...
Michael Hardy's user avatar
0 votes
0 answers
102 views

Is deleting posts a good practice?

In principle, MO posts can be cited in papers; on the other hand, MO posts get deleted sometimes. There is a risk, then, of referring a MO post which no longer exists. Is deleting posts a good ...
Iman Mosleh's user avatar
0 votes
0 answers
184 views

Difference between Mathematics SE and MathOverflow

If I post a question that I invented myself on Mathematics SE, I receive comments like "did you do homework?" and, eventually, "why do you ask if you know?". Fair enough. It seems ...
FirstName LastName's user avatar
0 votes
0 answers
127 views

Gaining points for posting

How do I earn 50 points to comment if I am not allowed to comment or post? So my problem is as described as far you can see.
Buster Solomon's user avatar
0 votes
0 answers
133 views

Is this question about partition numbers too broad/vague?

Here's my proposed question (edit: now posted) (edit 2: posted version now edited): I have found an algorithm for counting partitions, and I've been able to express it into a mathematical formula, $P(...
user1113719's user avatar
0 votes
0 answers
161 views

Asking if a post about a mathematical characterization of gravitational geons can be potentially interesting for the main site MathOverflow

I would like to ask about if a question about the following subject can be potentially interesting and on topic on MathOverflow. I would like to ask on the main site of MathOverflow about the ...
user142929's user avatar
0 votes
0 answers
98 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" ...
Manfred Weis's user avatar
  • 12.3k
0 votes
0 answers
128 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}{\...
geocalc33's user avatar
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0 answers
241 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
133 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 ...
Arbuja's user avatar
  • 1
0 votes
0 answers
230 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/...
Steven Landsburg's user avatar
0 votes
0 answers
79 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 $+\...
Anixx's user avatar
  • 9,050
0 votes
0 answers
325 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?
მამუკა ჯიბლაძე's 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 ...
Anixx's user avatar
  • 9,050
0 votes
0 answers
108 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)
C.F.G's user avatar
  • 4,145
0 votes
0 answers
88 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 &...
user44191's user avatar
  • 4,881
0 votes
0 answers
213 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 ...
Travis Wells's user avatar
0 votes
0 answers
137 views

Need details or clarity

I need some help to understand what is unclear with my question A reform of logic to secure naive set theory? and also what details are missing, from other persons perspective.
Lehs's user avatar
  • 852
0 votes
0 answers
104 views

Is my question for Math Overflow?

In the first paragraph of Prove or Disprove this Darboux-like sum of a function defined on infinite limit points converges to zero, I state that I do not know whether this is a research question. Is ...
Arbuja's user avatar
  • 1
0 votes
0 answers
64 views

Potential rendering issue for formulas

when I entered the following $$\pmb{ \frac{d_+^n}{dx_+^n}}:= \left(1, \frac{d^1}{dx^1},\,\dots,\,\frac{d^{n-2}}{dx^{n-2}},\,1\right)$$ I observed that the defined fraction has an unsharp ...
Manfred Weis's user avatar
  • 12.3k
0 votes
0 answers
94 views

Setting up math Q/A site in foreign language

Now that my college shifted to online education because of the coronavirus, I would like to setup a MathOverflow style site in Hungarian where I could post exercises, and students could comment, post ...
domotorp's user avatar
  • 18.4k
0 votes
0 answers
133 views

Would this soft question be appropriate?

A few weeks back on the Math Stack Exchange, I asked this question about "interesting" PDEs. It got (no answers and) some deserved criticism, so I opened a discussion on the Meta there and made some ...
Robin Saunders's user avatar
0 votes
0 answers
119 views

A questions about "on hold" status of a question and about "closed" status

I have a question that´s been put "on hold". And I have some questions. Who can see that this question is "on hold"? Can that see all users of the site or even some people who ...
Grešnik's user avatar
  • 297
0 votes
0 answers
104 views

MO links chopped in gmail pdf viewer

Currently I am preparing the text for a paper (together with two coauthors) where we cite help from MO on two occasions. I am doing this using the cite button. It ...
მამუკა ჯიბლაძე's user avatar
0 votes
0 answers
67 views

Is it bad practice to edit my own question with details from the paper provided in the top answer?

I asked a question and received a helpful answer that showed me work that I did not know how to search for. The answer was a link to the author's paper and some context on its relevance. While I could ...
Matt Cuffaro's user avatar
0 votes
0 answers
97 views

reminder for comments/responses

Suppose a user commented on my post and due to some reason I overlooked and then forgot. As it is my question, the one who responded for my question would not care to write another comment if I do ...
Praphulla Koushik's user avatar
0 votes
0 answers
167 views

Should there be Anonymous Comments?

I currently got a downvote for my question Making a Graph Eulerian for Applying TSP Heuristics, but unfortunately the downvoter didn't leave a comment explaining what the motivation was, thus ...
Manfred Weis's user avatar
  • 12.3k
0 votes
0 answers
114 views

i can’t log in the ios app

I can’t login the ios app, how to fix this problem? Neither the overflow nor the exchange.
Yixuan Zhang's user avatar

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