# All Questions

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496 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 ...
598 views

In the following image, depicting a piece of a comment on MO.se the words «this link» are a link to some URL, yet the styling makes it quite not apparent; the only styling I can see is a ...
269 views

### migration versus on-hold

Several questions have been migrated to m.se of late, and several others have been put "on hold" as off-topic, and I'm having trouble seeing how the distinction is made between the two courses of ...
340 views

### Minimum character of an edit

I just wanted to fix the latex of a question. It took me exacly 2 characters to change, which caused a large formula to display incorrectly. The software, however, asked me to make some further ...
578 views

### More precisely defining the scope of mathoverflow's subject matter

A few months back someone asked about the difference between questions appropriate for mathoverflow.net and those appropriate for math.stackexchange.com. And someone answered, saying something along ...
173 views

### How do I login to my old MathOverflow account?

I realise that this question has been asked in various forms already, but I still have a problem. I have an old MathOverflow account https://mathoverflow.net/users/6827/konstantin-ardakov and a ...
282 views

### MathJax \newcommand appears persistent across the whole page

Probably this is known. MathJax \newcommand appears to be persistent across the whole page, including the question + all answers. This potentially might cause ...
120 views

Today I came across this question, and noticed that the link given in the first answer was broken in a funny way. The link was given as plain text, and the system automatically converted it to a ...
1k views

### Has the switch to SE 2.0 increased the rate of low-level / inappropriate questions?

I would be curious to know whether, now that links to MO appear in the footer of every SE 2.0 site, and in the "hot questions" list of the Stack Exchange button, the rate of inappropriate questions ...
351 views

### What does “serial upvoting reversed” mean?

In my reputation history I see that I lost 75 points of reputation because of "serial upvoting reversed." What does that mean? It seems that this question was asked in passing in this discussion and ...
213 views

### I am not being notified when my question is answered

I have opted to be notified when my question is responded to even if not a full answer but I have received not such notification??
122 views

### Minor graphic glitch

Every time I see this I cringe a little: For comparison, the corresponding thingie in math.se always has the numbers centered in the circle.
325 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. ...
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'...
791 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 ...
358 views

### Disappearing post to meta

About 30 hours ago, I posted an item on meta that was not here 12 hours later. What's going on?
94 views

### The bit about parent user and the netwok not realizing I am on MO. Or network [duplicate]

Alright, I am going to ask this about myself, then I will go read the other one about MO not being available as a chat parent. That turned out to be Math Overflow not available as a chat parent user ...
1k views

### Opting out of reputation

[Disclaimer. I'm making this feature request not because I want it nor because I think it's a good idea, but because I heard it so often that there is need to discuss it. Please don't shoot the ...
491 views

### Trackbacks are no longer being generated for the arXiv

(Although this is a bug report, I or Anton are likely the people who need to fix it; this post is a bug tracking item, not necessarily a plea for help :-) We previously been scraping the front page ...
116 views

### why can't I link in a question?

I attempted to edit the question wrapping M5-branes on a Riemann surface so that it reads as follows: (begin edit) AdS/CFT gives us a way to use geometry to study field theory! I am trying to wrap ...
3k views

### How is this site different from Mathematics Stack Exchange?

I've just spotted this site on the blogs. At least that's where I think I saw it first. How is this site different from math.stackexchange.com?
156 views

Whenever I google MO, I find that the link https://mathoverflow.net/ leads to a page that reads This site is down for maintenance This site is currently down for maintenance. Please check back in a ...
135 views

### People without math.SE profile cannot join chat?

There appears to be some problem with people who are not members at math.SE conencting to at least one chatroom (the recently created "Homotopy Theory" chat room). That is, people with MO profiles are ...
50 views

### Automatic conversion of three backslashes into two backslashes possible? [duplicate]

In arrays in MathJax I needed always three backslashes to force a new-line; that was specific for MO and not so in MSE, for instance, where one needs only two. Now that we are in the stackexchange ...
432 views

It seems it's now possible to place bounties on other people's questions. I noticed a certain user placing a lot of bounties recently, including one on a question of mine which already had an accepted ...
188 views

### Enable saving draft questions and answers

As in the title - please, enable saving drafts of questions and drafts of answers, and returning to them on my next visit to MO. I am very slow in putting my thoughts into print. I Leave them for ...
89 views

When I tried to add this image from my computer at the main site, I first got an error that the image (after uploading) couldn't be found, and then this strange image showed up (screen snapshot): I ...
617 views

In MO 2.0 you get this message if there are “too many” comments: Please avoid extended discussions in comments. Would you like to automatically move this discussion to chat? IIRC an old meta-...
337 views

### Double backslashes

The “backslash-bug” from the old version is no longer there. You can simply write { and } to get $\{\}$. However, all the old questions and answers using \{ are now broken and look terrible: \$\prod\\{...
151 views

### Expanding the recently closed list

How do you get to a list of recently closed questions longer than what you can get by going to tools/close and expanding the recently closed list there? There is fixed number which show and no way, ...
108 views

### Vote count in Users->voters is off

Right now, my MathOverflow user page shows 12,878 votes, but the page with people's overall vote counts shows a mere 8674. I see similar discrepancies with other people's accounts. Is there some ...
296 views

### “2 views” hardly different that “2 kviews”

In the old version of MO, the header of a question was accompanied by a graphic information (this is an example): a huge "2" or "2k" and a tiny "views". Now we see Huge "2" and tiny "views" or "kviews"...
93 views

I can not seem to get enough reputation to get chat to work. I think it is that my MO and SENetwork accounts aren't properly linked. In fact, my other stack exchange accounts aren't merged with my MO ...
114 views

### What is wrong with the tag excerpts?

Looking at the list of tags https://mathoverflow.net/tags it seems that all the tags are surrounded by html <p>...</p>. This seems to be happening ...
11k views

### Requests for reopen and undelete votes for on-hold, closed, and deleted questions

Since I expect this may prove rather useful, I'm blatantly purloining Asaf's question from meta.math.se. Please post general requests for reopen votes as answers below. Beware that "short" ...
7k views

### Homotopy chat room

I started an MO homotopy theory chat room at http://chat.stackexchange.com/rooms/9418/homotopy-theory at the request of Jon Beardsley. there seem to be people in it already who know what the word "...
247 views

I'm not sure if this has been reported elsewhere. See for example Fred Kline's comment on quid's answer at https://mathoverflow.net/questions/104608/need-help-defining-placeholders-for-primes The ...
177 views

I see that some comments have been edited, but on comments I have made there is only a delete button, not an edit button. How do I edit a comment?
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.
33 views

### Problem with links to tags on meta

For example, [tag:lo.logic] renders as lo.logic. It seems that the color for the top and left edges is the same as the background color for meta.
130 views

### Chat does not appear in the sidebar

The chat doesn't seem to appear in the sidebar on the main site (although it does on Meta). ManishEarth has suggested that this might be due to the no-ads agreement. I think it would be useful to have ...
2k views

### Frequently Asked Questions: MathOverflow FAQ

Frequently Asked Questions for MathOverflow What kind of questions can I ask here? What kind of questions should I not ask here? What about open problems? Where's the rule that says I have to wear ...
71 views

### possible bug in reviewing reopen votes?

I just reviewed Status of Beal, Granville, Tijdeman-Zagier Conjecture which had a vote to re-open, and tried to select "keep closed". But then I got a pop-up asking me to confirm that I wanted to re-...
391 views

### A gap in the “notification” system

Suppose one votes to close a question in "main", and the poster asks in "meta" why it was closed. Apparently the existence of that discussion in meta is not included among the "notifications" ...
430 views

### Use of arXiv tags

When MathOverflow began we decided to start using arXiv classification and created corresponding tags. These are still the most broadly used tags on MathOverflow. However, the usage of some these tags ...
2k views

### Help improve tagging!

Please help by writing tag wikis for your favorite tags! Use answers to this post to suggest tag synonyms. Finally, if you're a 10k+ user, note how easy it is for you to edit tags now!
623 views

### Minor edits, subject to review

Now that MathOverflow has moved to 2.0, there is a potential solution to the long-standing tension between people wanting to make minor improvements to old posts, and others not wanting the 'active ...
247 views

### When to add post notices

Mods have a new option to add post notices. There are three basic notices currently available but MO specific notices could be added: citation needed - This post does not cite any references or ...