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7 votes
1 answer
109 views

How do I recognize an AI-generated question?

Apart from "being nonsense", how do I recognize an AI-generated question? Are there telltale signs? Could you post some examples, maybe as links to deleted questions?
6 votes
0 answers
149 views

AI generated questions: a strange riddle?

So apparently now people are posting AI-generated questions (rather than answers). To me this makes no sense at all whatsoever -- why would anyone post a question to which neither they nor anybody ...
31 votes
0 answers
428 views

Can/should we tell people that AI cut and paste answers are not welcome?

We now commonly see new users pop up and post a string of nonsense, AI-generated answers to a bunch of questions, before their accounts are eventually banned. In order to counteract this, could we ...
12 votes
1 answer
412 views

Edits to capitalization in titles

Given that there are different rules for the capitalization of words in headlines, e.g. for newspapers; here is randomly chosen link to some rules there are no related styleguides for MO I would ...
-1 votes
1 answer
239 views

How to invite a user for a private chat

How to invite a user to a Private MO chat. I read the following but I do not know how to apply it yet. Your help is appreciated https://meta.mathoverflow.net/a/3635/36688 I have to ...
2 votes
0 answers
128 views

Close votes on questions with good answers

When reviewing close vote queues I frequently encounter cases of several close votes on questions that have received one or more more or less elaborate answers, frequently with several upvotes each. ...
51 votes
59 answers
30k views

News of potential interest to the MO community

Occasionally, there has been a suggestion to start a meta question to collect information that might be of interest to the MO community. This is an attempt to start such a thread. Is there any news ...
136 votes
61 answers
22k views

Best of MathOverflow, or papers inspired by MathOverflow

This is a place to collect MathOverflow success stories! Was some of your research inspired by something on MathOverflow? Do you know questions & answers that led to interesting research? ...
5 votes
1 answer
292 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....
6 votes
1 answer
492 views

Should the tags (peano-arithmetic) and (theories-of-arithmetic) be merged?

TL;DR: Should the tags peano-arithmetic and theories-of-arithmetic be merged? Is some clean-up needed before doing that? Or are there some reasons not to merge these tags? In October 2020, a tag ...
4 votes
1 answer
68 views

Question preview MathJax error

When I search this, I get this answer preview: However, there is a dollar sign after the V=L in the post: ...
8 votes
1 answer
294 views

Disappearing comment

I posted two comments on this (quickly closed) post. My first comment disappeared. In it I explained my closure vote (which I think is polite to do). I also explained how I thought the post could be ...
12 votes
1 answer
310 views

Site in read-only mode, but users are still posting new material

For a day now, every time I go to MathOverflow, it says "This site is currently in read-only mode. We’ll return with full functionality soon." But I also see what appear to be new posts from ...
5 votes
1 answer
186 views

Why doesn’t the LaTeX render here?

This question has a block of valid LaTeX which doesn’t render when viewed except on edit mode. Below are 2 screenshots from my phone. One in edit mode and the other in regular mode. I used QuickLaTeX ...
0 votes
0 answers
143 views

What input is blacklisted on MO?

I wonder whether it could be possible to make public which input is blacklisted in titles, posts, tags here on MathOverflow. Or at least a redacted list - I could understand that the mods might keep ...
49 votes
18 answers
5k views

Interesting (and not sufficiently answered) questions on math.SE

In light of the generally positive response to this meta-thread, I am creating this to help advertise (and hopefully fully resolve) "interesting" questions on math.SE. I'm not really certain what the ...
3 votes
0 answers
131 views

Why can't question titles end with a period?

This is probably a duplicate, but gentle searching didn't turn it up; it's hard to know what'd be a good query. I tried several times (within the grace period, so it only shows up once) to submit an ...
0 votes
1 answer
53 views

Why is this? (searching by filter)

I am searching using a filter composed of several tags, and get empty results: Why?
1 vote
0 answers
56 views

Why isn't users rep showing on their posts? [duplicate]

Example image is below. Where the user's reputation is normally, it is completely blank? Why? What is happening? I tried reloading and looking at other questions with the same result. The problem also ...
18 votes
0 answers
625 views

goo.gl is closing down

goo.gl, a URL shortener service from Google, is shutting down, and in one year it will no longer work: https://news.slashdot.org/story/24/07/18/216211/google-url-...
-6 votes
1 answer
254 views

Can I know why my post was deleted by a bot?

My question Compiling a List of Schauder Bases for Function Spaces was deleted by a bot, I want to know why.
5 votes
0 answers
282 views

Possible delay/review to deal with troll posts

In light of the ongoing garbage flood, I am curious whether the following would be possible to institute (and/or a good idea): When a new/unregistered (or under-X-rep.) account posts an answer or ...
4 votes
1 answer
147 views

Edit summary rejected with "Comment reserved for system use. Please use an appropriate comment."

I recently tried to submit an edit to Why does an invariant measure define a Schwartzman cycle? No matter what I put in my edit summary, it was rejected with the message "Comment reserved for ...
-10 votes
1 answer
265 views

What do you think about the following MO question?

What do you think about the following MO question? By posting this question for feedback I am following David Roberts' very patient and kind advice. If you have already seen the question below please ...
16 votes
2 answers
967 views

Users using AI to write lots of answers

Recently, there are a lot of new pseudonymous users with a peculiar pattern of posts: only answers, no questions, in lots of widely differing areas of mathematics (where it is unlikely that one random ...
16 votes
1 answer
1k views

Why is the site being flooded with junk right now? What is being done about it?

Right now the site is being flooded with posts from new users, with pseudonymous names, who use a mixture of obvious AI-generated nonsense mathematics and weird sentences (sometimes borderline ...
-14 votes
2 answers
462 views

dispute -100 rep decision

I was given -100 reputation for this sound mathematical post https://mathoverflow.net/questions/473947?noredirect=1#comment1231454_473947 This is excessive and I want to dispute this decision, how do ...
32 votes
114 answers
13k views

Requests for reopen and undelete votes for 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" ...
117 votes
23 answers
9k views

MO-Hard Questions

The term "MO-Hard" has entered the mathematical vocabulary, describing interesting questions that were asked on MathOverflow but haven't been answered in spite of efforts by many community members. ...
4 votes
1 answer
426 views

Option to migrate to CS Theory

We should add the option to migrate to Theoretical Computer Science when voting to close. This question is an obvious candidate.
26 votes
28 answers
3k views

Help cleanup tags!

This is meant to agglomerate tags that need (occasional or regular) cleanup. That is tags that mean multiple unrelated things and need to be separated into more specific tags. Please follow the ...
-1 votes
2 answers
319 views

Asking for consensus on mathematical conventions/definitions

Is this (mathoverflow or meta) a reasonable place to ask nuanced questions about how the mathematical community interprets mathematical terms and how they are used in common questions? For example: is ...
14 votes
1 answer
10k views

KaTeX vs MathJax

According to some benchmarks, it seems that KaTeX renders latex much more faster than Mathjax. Is there any chance to use KaTeX in place of Mathjax?
27 votes
1 answer
1k views

OpenAI and MathOverflow?

The agreement between SO and OpenAI seems to have resulted some ill humour. Does MO plan to follow?
-9 votes
1 answer
231 views

User destroyed without explanations or obvious reasons

Yesterday (June 6), somebody posted this answer (now deleted, so users with <10k reputation will not see it). I have not bothered checking whether it is correct, but it surely looks reasonable, and ...
12 votes
1 answer
262 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 ...
55 votes
2 answers
4k views

ChatGPT strikes MathOverflow

The user (or a bot) https://mathoverflow.net/users/496085/canvas123 appears to be posting ChatGPT-generated text on MathOverflow. Two “answers” by this user already got accepted (!): When is a ...
12 votes
5 answers
1k views

When a MSE user is suspended, should the suspension apply to MO as well?

I'm just asking. When an MSE account is temporarily suspended to cool down, then the expected outcome is that the user would start doing the same things on MO which led to the MSE suspension. This ...
3 votes
0 answers
101 views

Do lookalike characters in question titles pose any risks?

Attacks via "lookalike domains" are a known malicious trick. Is any risk posed by a lookalike question title? I know that's rather vague, and it's a concern that seldom arises. I give an ...
16 votes
1 answer
454 views

New bolded tags?

The past few days, I’ve noticed that the question tags on the main site are now bolded; is there any way to revert them back to normal? (Not the end of the world, but I find it distracting more than ...
5 votes
1 answer
144 views

Is something wrong with the citation helper?

I've found the citation helper very useful for inserting references in posts, and I always used to be very impressed at its ability to find details of even some quite obscure papers. But recently it ...
13 votes
1 answer
609 views

Can we get rid of the "featured on meta" main meta links?

As you know, MathOverflow has a special status in the Stack Exchange family, and (by a special agreement) it doesn't display any kind of ads nor links to the hot network questions in the sidebar. ...
39 votes
1 answer
909 views

MO answer formalized in Lean

I have formalized an answer at Homeomorphisms and "mod finite" by @VilleSalo, in a moderately-sized Lean file. Outcome: his claims turned out to be 100% accurate. (The only stumbling block ...
1 vote
1 answer
86 views

What tags are appropriate for a "reverse" reference request?

I have a just asked a question, searching for information on a reference, but I'm not sure what tags to use. I know the reference, although I know no further details about it. A similar question ...
0 votes
0 answers
149 views

Announcement: A stacks project for category theory

I'm releasing today The Clowder Project, a tag-based wiki and reference for category theory powered by Gerby. I plan to eventually make it into a comprehensive resource for category theory, in the ...
19 votes
2 answers
766 views

More spam bots than usual?

Has anyone noticed the site getting a lot more spam posts than usual over the past couple days? The ones I've seen repeatedly have "BingX referral codes" or similar codes for Bitcoin or ...
0 votes
1 answer
178 views

Are questions about whether a type of work/problem/solution or (one's own) arxiv paper is publishable on topic?

This is a bit related to the question: Are "has this been studied before" questions on topic? If I post something in the arxiv, can I ask for an opinion as to whether: 1) it's been done ...
4 votes
0 answers
117 views

Discrepancy between MathOverflow logo and this site's logo

There is a slight difference between the sizes of the boxes in the MO logo and the Meta.MO logo. The MO logo's box is slightly longer and the gap in the rightmost side is slightly less tall. The ...
4 votes
0 answers
235 views

A mathjax issue with stars in super/subscripts

I encountered Topos associated to a category with glowing-red \*s in it. When trying to edit them out I discovered that whenever I try to replace an ...
6 votes
5 answers
1k views

Formatting Sandbox

The purpose of this thread is to enable people to check if their formatting works and to play around with their MathJax code. Quoting from Bill Dubuque's Formatting Sandbox on meta.math.SE: To use ...

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