All Questions
467
questions with no upvoted or accepted answers
1
vote
0
answers
184
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 ...
- 3,436
1
vote
0
answers
193
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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 &...
- 295
1
vote
0
answers
95
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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 ...
- 12.3k
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 ...
- 22.4k
1
vote
0
answers
183
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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 ...
- 4,588
1
vote
0
answers
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 ...
- 12.3k
1
vote
0
answers
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?
- 591
1
vote
0
answers
100
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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'...
- 34.9k
1
vote
0
answers
184
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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 ...
- 281
1
vote
0
answers
255
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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 ...
- 101
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 ...
- 12.8k
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 ...
- 2,495
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'...
- 23.9k
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 ...
- 315
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 ...
- 3,044
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 ...
- 25.5k
1
vote
0
answers
475
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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 ...
- 3,199
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 ...
- 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 ...
- 3,211
1
vote
0
answers
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 ...
- 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. ...
- 1,961
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.
- 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 ...
- 10.6k
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 ...
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 ...
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.
0
votes
0
answers
133
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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(...
- 13
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 ...
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" ...
- 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}{\...
- 87
0
votes
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 ...
user366545
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 ...
- 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/...
- 22.2k
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 $+\...
- 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?
- 17.1k
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 ...
- 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)
- 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 &...
- 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 ...
- 101
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.
- 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 ...
- 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 ...
- 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 ...
- 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 ...
- 3,388
0
votes
0
answers
119
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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 ...
- 297
0
votes
0
answers
104
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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 ...
- 17.1k
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 ...
- 419
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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 ...
- 5,855
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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 ...
- 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.
