# All Questions

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### Automatic comments by Community

There seem to be automatically generated comments by "Community". As an example, this question by a new user has Please clarify your specific problem or provide additional details to ...
• 55.2k
262 views

### \intertext in MathJax

MathJax, at least as used on MO, recognises many multi-line environments, like {multline}, {align}, and ...
• 9,724
171 views

### Diamond moderator symbols and old posts

This question, or rather, (vague) feature-request is not specific to MO; however I leave it to more experienced (and with better skill in writing English) users to possibly ask it elsewhere. ...
• 55.2k
685 views

### Has MO traffic decreased a bit since the invasion of Ukraine?

I check the review queues several times a day, each day. I have noticed a significant drop of posts in the queues that I am watching (First questions, First answers, LQP, Late answers). Even the ...
• 5,015
125 views

### MathJax equivalent of <strike></strike>

I recently tried to edit an old question x-th moment method that had got bumped to the front page for other reasons. The post had an equation that was meant to be, and maybe at one point was, struck ...
• 9,724
764 views

### Best way to correct "Cauchy-Schwarz" misspellings

I would like to apologize because the top questions page is currently overrun by questions I just edited. I just noticed that Cauchy-Schwarz is often incorrectly spelled Cauchy-Schwartz and so I made ...
• 18.1k
393 views

### Feature request: add short "about MathOverflow" section to the front page

Until a few years ago MathOverflow front page had a short section at the top describing what the site is for. I am not sure when it disappeared or why but I would like to see it restored. Currently ...
• 7,762
51 views

### Link not being processed

At What kind of topological invariants can you get from just Hopf algebras?, link [4] is not being processed: However, it is there in the source: ...
• 9,724
204 views

### Long display style formulae extend too much to the right with some renderers

In the following screen capture, take a look at the region delimited by the red rectangle: notice how it extends too much to the right, such that a part of it becomes hidden by the yellow page element....
• 5,015
437 views

### Is this soft question acceptable?

Edited version: What are great examples of comprehensively archived mathematical correspondence (including both handwritten and electronic items)? Previous version : How should mathematicians archive ...
• 2,821
105 views

### Some but not all LaTeX rendering correctly on tools page

Users with sufficiently high reputation have access to a "tools" page, which I like a lot. However, sometimes I find that the $\rm\TeX$ doesn't render properly. What is particularly puzzling ...
• 70.5k
269 views

### Bringing back the old front page with custom CSS: a guide

As mentioned in a recent meta question, the Stack Exchange development team pushed changes to the front page affecting how views, vote counts, and answer counts are displayed. A few hours ago, these ...
• 8,825
269 views

### Bountied question has already been answered elsewhere

This question, while somewhat old, recently had a 250 point bounty placed upon it by David E. Speyer. However, as I remarked in the comments, it has already been answered by Harry West, but in the ...
• 25.2k
107 views

### How to formulate a question for a Mathoverflow forum?

Can the following question be posted? “Where could an error be in the proposed proof of Fermat Last Theorem? Info about the author, proof and preliminary validation is at (link)”. How should the ...
304 views

### 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 ...
• 1,916
62 views

### Badges appear to have disappeared [duplicate]

It looks like badges are no longer showing on users when browsing questions/answers: The badges appear while the pages loads, but as soon as the mathjax fully loads, they disappear. Checking other SE ...
66 views

### Occasionally reproducible bug with macro definitions in a draft post affecting macro use in comments

In the course of a discussion involving using MathJax to re-define macros, I couldn't recall if MathJax obeys a \newcommand for an already-defined macro, and so ...
• 9,724
794 views

### What is the deal with changes to the front page?

It appears that today Stack Exchange has changed the appearance of the MathOverflow front page. It now looks more similar to Stack Overflow. The most noticeable change is that the counts of answers, ...
• 54k
160 views

### Reputation displays after an edit even if opted out

I mentioned this in a comment on the main announcement regarding not automatically displaying reputation, but perhaps it is worth making into a formal bug report. After I edit a post, reputation is ...
• 9,724
481 views

### New Stack Exchange site for proof assistants and automatic theorem provers

Stack Exchange will soon create the Private Beta site for Proof Assistants and Automatic Theorem Provers. If you want to see what a Stack Exchange site is like in its initial beginnings, want to help ...
• 436
2k views

### Viewing reputation and badges is now opt-in and compatible with the new front page

This announcement is a little late (see the discussion here), but in response to discussions over many years, we (the moderators and board) have implemented a change to the site where by default, ...
• 42.7k
155 views

### How does one check progress towards a (second) Socratic badge?

Not to take anything too seriously, but how does one check progress towards a (second) Socratic badge? I've seen a script for another Overflow site, but it doesn't seem to work here.
• 18.4k
330 views

### 2021: a year in moderation

As we say goodbye to the old year and welcome the new one, we have a tradition of sharing moderation stats for the preceding calendar year. As most of you here are aware, sites on the Stack Exchange ...
• 101
164 views

### Asking the same (subjective) question on Math.SE and MO

I asked a question a couple of years ago on MathStackexchange which was quite popular. I would like to ask it on MathOverflow as well, since I'd be interested in the answers there. But I'm never ...
• 988
1k views

### Reputation and badges are no longer visible next to the users' names

Right now it seems that a bug is affecting MO: reputation and badges are no longer displayed next to the users' names. This happens both on the front page: as well as on pages of individual questions:...
• 5,015
95 views

### On a MathOverflow post, the members' reputation for a question & answer shows briefly but then disappears [duplicate]

When I was just viewing the MathOverflow Improving Cauchy estimates?, this is what I see for the question & answer members' "flair" sections: Doing a refresh causes the reputations to ...
• 377
337 views

### Top-voted questions for the year?

This link shows the top-voted questions:       https://mathoverflow.net/questions?tab=Votes In a New Year's spirit, how can I restrict this query to top-voted ...
• 147k
149 views

### How can I contact a specific user

I'm new here and it was suggested to me to ask this here. There was a particular user who's answers and questions came up more than once when researching a couple math related topics and I was hoping ...
• 101
724 views

### How to make welcoming comments on "homework-like" posts that will be closed?

We get posts here that are phrased as if from a textbook or homework; the one I have in mind is Find the recurrence relation, but my question is more general. Such posts will certainly be closed. A ...
• 9,724
149 views

### Is it possible to find out why a comment was deleted?

I had a comment at How do you generate math figures for academic papers? asking whether the question was a duplicate. (Carlo Beenakker is responding to it in this comment.) Since the comment is no ...
• 9,724
97 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" ...
• 11.7k
124 views

### Are my comments searchable?

My activity page in particular contains "All actions" tab; all my comments are there. Can I search for, say, a specific word there? A wonderful answer by Martin Sleziak to my question Is it ...
• 17.1k
1k views

### Welcoming new user: on a recent question about connections

I think that the history of this question about connections is unfortunate. I would like to discuss (respectfully, without throwing blame around) whether/how a better outcome might have been achieved....
• 51.7k
299 views

### What if I'm not sure about what area of math a problem lies?

One student asked me how to solve a problem and the only way of solving it that came to me seems hopeless to find an answers. It occurred to me that I may using a wrong approach to it. How could I ask ...
• 413
124 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}{\...
1k views

### Why is the question about SO(4) embedding into SU(3) attracting so many troll answers

This question: Is SO(4) a subgroup of SU(3)? has already attracted 5 rude spam answers (most of which have been deleted by the time I posted this, but if you have enough reputation you can see them). ...
• 20.5k
220 views

### How do I recover my MathOverflow account?

I've been inactive for close to a year due to illness--and want to resume my activity as in Euclidean volume of the unit ball of matrices under the matrix norm but when I try to do so, I get treated ...
399 views

### Two traffic observations and questions

The MathOverflow traffic (page views, visits, new visits) shows steady and possibly increasing activity over the last $2+$ yrs. The chart below runs from 2019-Jul-07 on the left and 2021-Nov-04 on the ...
• 147k
107 views

### Braces are not rendered in MathJax in the preview of a question

I am using Firefox 94.0.1, with no user scripts. I have a few add-ons, which I can list if needed, but, since the behaviour does not always occur, they cannot always be interfering. My renderer is <...
• 9,724
236 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 ...
351 views

### A super easy way to speed up MathJax loading with LocalCDN add-on

I found a very neat way to speed up MathJax execution times and I thought about sharing it with everyone here. Typically whenever I start my browser I have to load up all of these MathJax resources ...
• 101
1 vote
201 views

### Why I am not allowed to answer protected questions?

I'm a new user of MathOverflow. In the privileges section, it says that I can now answer protected question. But in reality, when I visited this protected question, it says: I'm not counting the ...
589 views

### To which extent can one modify another's question?

One highly off-topic question of real analysis was asked in the main site by a new user. One user sent, 1 hour later, a long answer going far beyond the the question, and then, 12 hours later, edited ...
• 55.2k
173 views

### I can not find one question I have already asked

I had already asked a question as follows: "Is there a one dimensional foliation of a two dimensional manifold whose foliation groupoid is diffeomorphic to a 3 sphere with two north pole. The ...
• 101
240 views

### Finding previously highly active deleted users

I was fairly active on MO at the start. Then, as is the case with some early users, my participation became much more sporadic over the years. Recently, I realized that quite a few of the old accounts ...
• 30k
293 views

### Criteria for Top question?

I posed a question on Mathoverflow which got no votes, but it made it to Top question. I supplied an answer, while nobody else proposed an answer. How come it made it to Top question?
• 3,006
185 views

### How to find out why a post was deleted

It would help to know why a post was deleted, I believe in this case automatically by a MO monitoring robot. I am not judging the decision, but would like to know why, to avoid asking such questions ...
• 2,774
129 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 ...
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175 views

### Answer converted to comment, then reverted to answer

Earlier today, this answer to this question was converted to a comment by a moderator. The same moderator subsequently reconverted the comment back into an answer an hour or so later. One of the ...