# All Questions

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241 views

### Change of colors

I decided to follow up on my own thread regarding the color scheme, and test something up. Using archive.org, I loaded a copy of MathOverflow from 2011, and it turns out that the questions in one's ...
827 views

### tea.mathoverflow.net deprecated

The Stack Exchange staff have asked us to remove tea (what came before meta) from the *.mathoverflow.net domain, for security reasons. The content of tea will ...
278 views

### Please enable the AMScd package by default

We can draw diagrams using the AMScd package, and works quite nicely (see Math.SE for a working proof). However, on MathOverflow the package seems to be disabled by default, so if a user wants to use ...
419 views

### Best way to post graphics to MO

What is the best way to include graphics in a question or an answer on MO? I searched the help but could not find instructions about how to post graphics. I also looked at a couple of Joseph O'...
354 views

### Quickly Accessible MathJax Help

I recently had the problem of encoding big brackets in a formula in my question "Functions that Calculate their $L_p$ Norm" and, I could find nothing under "How to Format > MathJax equations", as the ...
784 views

### Are research questions in MSC 97 (Mathematics education) allowed on MO?

Check AMS Mathematics Subject Classification, you will find the 2 digit classification "97" for mathematics education. Thus it seems that It is allowed to ask mathematics education research questions ...
689 views

### Why this is off-topic?

I posted a question on MSE for two months and received no helpful answer. So I tried the same question on MO. I got 4 off-topic votes and so the question got migrated back to MSE. I'd like to mention ...
440 views

### Can anybody provide a clear list of design changes that are obligatory, with explanations?

With several heavily loaded questions here on meta and the StackExchange meta, - MathOverflow updated site theme is ready for testing! Responsive Design Themes - What can sites customize and how can ...
263 views

### Should tag-wiki include a source where it is taken from?

The main purpose of the tag-info (and especially the tag-excerpt) is to help with tagging. This is especially important for the tags with ambiguous name. But usually tag-info also contains some brief ...
198 views

### Is it possible to search for posts/questions of an user $X$ commented on/answered by the user $Y$?

Basically the question is in the title. Maybe it sounds not entirely healthy but, say, I want to find all instances when the user $Y$ has replied to the user $X$, is there a way to do it? Maybe more ...
405 views

In my hotel in Shanghai, I get the error message MathOverflow requires external JavaScript from another domain, which is blocked or failed to load. Is there a work around for this? Posts load very ...
144 views

### Custom closing link looks too much like it should be a migrate to MSE link

Currently, one of the custom off-topic closing reasons is: MathOverflow is for mathematicians to ask each other questions about their research. See Math.StackExchange to ask general questions ...
684 views

### Appropriate Reaction to a Failed Reference Request on MO

This follows Amir Asghari's advice concerning my comment on the answer to Answering my own question: Background of my question is, that I can envisage different reasons for reference requests on ...
511 views

### On the top-level tag ra.rings-and-algebras

I'm confused about the scope of the ra.rings-and-algebras The problem is related to the ambiguity of the word "algebra", which essentially has two (rough) meanings the meaning "ring&...
349 views

### How to contact a MathOverflow user?

Occasionally it might happen that I want to contact some user, although the thing I want to say is not directly relevant to one of their posts - which makes me think that this would be not really ...
593 views

### Some proposals for modifications of the process of closing/reopening questions

I wish to make a modest proposal on closing/reopening questions. Let me begin by noting that by far the most frequent reviews are Close votes -- almost 37,000, and looking quickly most of the close ...
1k views

### Slight downward trend in Q & A

I thought MO users might be interested in this graph constructed by Neal Young in a discussion at meta.cstheory about the more pronounced downward trend in cstheory. It shows MO Q&A activity ...
807 views

### Can the clutter of obviously off-topic questions be removed faster?

I have noticed a number of blatantly off-topic questions that hang around for a long time despite heavy down-voting and calls for removal by senior users. I found somewhere on the site (although I can'...
799 views

### Is there a consensus on whether history of mathematics questions are acceptable on MO?

I recently stumbled across an old meta discussion in which some people suggested that history of mathematics questions were off-topic for MO. This took me by surprise and I would like to ask for ...
641 views

### Proposal to more aggressively delete off-topic questions

We are going to get many more off-topic questions now. Can we agree to vote to delete on them so as not to pollute the site? It takes a few votes from users who can vote on such things and/or one ...
669 views

### Where's the old meta?

Where's the old meta.mathoverflow.net?
3k views

### Why was there pushback on a user's profile image?

The comments on the OP for the following question are disconcerting: Why is Voevodsky's motivic homotopy theory 'the right' approach? From what I can gather, the OP must have had ...
578 views

### Using bounty to prevent a question from being closed

There is a recent question Which universities teach true infinitesimal calculus? , suitability of which has been questioned by several users [I personally do not see in this question anything related ...
374 views

What is the copyright of the MathOverflow logo? Is it in the public domain? In this site they say that "most simple logos simply do not have the required level of creativity to be considered ...
642 views

### Why can't we close questions that have a bounty?

I just cast the 5th vote to close the question Was Cauchy so obstinate?, but the system said that it's impossible to close a question with an open bounty. It seems to me that this question is ...
311 views

Sometimes a lot of good things happen as the comments under an answer to your post. Though we are notified of the answers given or the comments under the body of the post, it seems that we are not ...
670 views

461 views

### In the new site design, what should the background look like on MO?

SE is giving us pretty limited options for how the site is going to look going forward. Our most popular customization request, judging either from Carlo Beenakker's original suggestion or the ...
268 views

### Broken math on some answers [duplicate]

Here is an example. Is there an automatic way for moderators to fix what I imagine are many answers that somehow now display funny, or should we do it manually, one by one? If the latter, people ...
369 views

### 2019: a year in moderation

Since the start of the new year, I've been posting questions on various sites detailing how the various moderation actions taken on these sites break down between Moderators and ordinary members of ...
270 views

### MathJax on Chat

Is there MathJax support on the chat?
207 views

### Flagging as Low Quality should add the post to the review queue

In How to handle crankery on MathOverflow 2.0? Andy Putman pointed out that he flagged a post as low quality, but it never reached the low quality review queue. I feel that in order to effectively ...
914 views

### Development of the MathOverflow community

From the Stack Exchange Data Explorer one can obtain the following data: Number of people who joined MO in the last 4 years and have collected at least 10000 points: 96 Number of people who joined ...
981 views

### 2013 Moderator Election Q&A - Question Collection

The purpose of this thread was to collect questions for the questionnaire. The questionnaire is now live, and you may find it here. In connection with the moderator elections, we will be holding a Q&...
1k views

### Why is my question apparently not research-level?

I just posted this question a few hours ago, and it's already had two votes to close for being off-topic (i.e., not of "research-level mathematics"). Considering it's ultimately a question about ...
142 views

### Braces don't render in preview

When I type braces in math mode in a post, like $\{1,2,3\}$, they don't show up in the preview. See the following screen shot. I tried all the different Math ...
222 views

### Where is the off switch for the concurrent preview now?

I feel like an idiot but I cannot find it. Meanwhile, if the post is long and has a lot of LaTeX formulae in it, and the connection is imperfect, the wysiwyg regime is a non-stop fight. I figured out ...
413 views

Another time recently, an user has asked a question which is very far from research level, and has been reprimanded for not reading the FAQ. However, I realize that there might be a problem in the ...
568 views

606 views

### Is bounties period sufficient?

I edit the quesion according to the comment of professor Edgar Is it reasonable to suggest to MO to extend the bountiess period from 7 days to 3 or 4 weeks? Can mo be an exception, according to ...
204 views

### 'Tag-removed' tags where they possibly shouldn't be

See Why is differentiating mechanics and integration art? Which functions of one variable are derivatives ? both of which are tagged [tag-removed]. Also, both of these seem to have had these tags ...
424 views

As a typical scenario, assume I ask for examples of some mathematical phenomenon and somebody answers my question and provides 2 families of examples. After several months, I figure a third family of ...
433 views

### What to do with useful answers to questions closed as duplicates (or by some other reasons)?

Before the question Intuitive explanation of concentration of the measure for spheres has been marked as duplicate (correctly I believe), it has got an answer which might provide additional useful ...
493 views

### why the extra step in registering?

On other stackexchange sites, when an unregistered user logs in we can enter a name and password into an Open ID page, and once that is accepted we are taken to the front page for that stackexchange ...
406 views

I like to hang out in the homotopy theory chatroom. I used to navigate to this and other chatrooms using a link on the main site. This seems to have disappeared. Is there a reason for this change? I ...
4k views

### LaTeX style accents in regular text

LaTeX has some handy macros that allow the insertion of diacritics and other special characters in text mode. Relevant tables from the Comprehensive LaTeX Symbol List: These are handy since they don'...
249 views

### where is the Tips and Tricks list from MO 1.0?

I asked a question at why the extra step in registering? whose solution by Shog9 I think would be worth placing in the Tips and Tricks list. But I don't see the Tips and Tricks anymore in the right ...
921 views

I'm slowly going through some topos theory papers by Lawvere. In almost every paper, there are many small sayings and sometimes entire sentences which I do not understand and have never explicitly ...