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Questions tagged [hyperlinks]

For questions on usage of links at MathOverflow (both links to various parts of this site and to other sites).

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-3 votes
0 answers
22 views

Open links in new tab?

I realize that in any browser you can open a link in a new tab by right clicking on it and choosing the option from a menu, and most browsers also have a setting to do it automatically always. Still, ...
15 votes
0 answers
271 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-...
Federico Poloni's user avatar
2 votes
2 answers
248 views

All these invalid weblinks

I found so many web links became invalid on the questions and even more on the comments. Please be aware of this issue. In the future, this site needs to either repair the invalid links or advise ...
Ming Lei's user avatar
3 votes
0 answers
42 views

Question titles do not auto-expand if URL contains non-ASCII characters?

Consider two versions of What is the modulus of continuity of this function that is continuous, increasing and bounded but nowhere locally Hölder?. Notice that, in the first version, the linked ...
LSpice's user avatar
  • 12k
8 votes
0 answers
379 views

Will the closure of Gfycat affect MO?

Gfycat is a hosting service for (animated) GIF files, which will close on September 1st, 2023. Since some MO users might have included GIF files hosted on Gfycat in their posts, does the service's ...
Alex M.'s user avatar
  • 5,357
11 votes
0 answers
223 views

What is the status of the imgur images on MathOverflow?

Many posts on MO contain a link to imgur.com. Such links can be created outside the Stack Exchange network - if somebody simply creates a picture on imgur. But some of them might have been uploaded ...
Martin Sleziak's user avatar
2 votes
0 answers
220 views

Facebook and Twitter links disappear ungracefully

I am using Safari 16.1 on macOS 12.6. The invitation to "Share a link to this question" appears for me like this: I assume that the Twitter and Facebook links are not showing because of ...
LSpice's user avatar
  • 12k
3 votes
0 answers
153 views

Weird site URLs

If I go to MathOverflow from another SE site by clicking on the link in “Your Communities” under the right-most menu on the top-bar, I do not end up with the usual ...
Emil Jeřábek's user avatar
4 votes
2 answers
202 views

Should we allow link-only answers that point to stable, well known and respectable sites?

I have just been presented with an answer in the VLQ queue that consisted essentially in a link to a preprint on arXiv. The user having posted it is a high reputation user, so he definitely knows the ...
Alex M.'s user avatar
  • 5,357
6 votes
1 answer
2k views

Hyperlink in a comment?

How do I add a link to an external published article in a comment? I don't see the edit frame with the link button. What is the syntax I can use? (I did search Meta but did not see ...!)
Fred Dashiell's user avatar
6 votes
2 answers
378 views

Citing papers in questions/answers

Is there an established policy for how to cite a paper you link to in a question/answer? If not, what does etiquette dictate appropriate for citations? I used to be careful to include full citations ...
Alec Rhea's user avatar
  • 9,145
20 votes
2 answers
995 views

Can (and should) Project Euclid links be replaced in bulk?

In February 2021, Project Euclid made some changes on their website: Project Euclid Platform Migration FAQs. It is probably a consequence of this that the links starting with ...
Martin Sleziak's user avatar
2 votes
1 answer
52 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: ...
LSpice's user avatar
  • 12k
25 votes
5 answers
2k views

Updated: Is it time to replace links to the UCDavis arXiv frontend?

This question from March 2020 points out that many questions/answers link to papers at the http://front.math.ucdavis.edu/ frontend instead of at the arXiv itself, but that the frontend had been down a ...
Peter LeFanu Lumsdaine's user avatar
7 votes
1 answer
163 views

Unfortunate title length limitation when performing dead link maintenance

This question about disc projections has a link to an animation of a Reuleaux triangle spinning inside a square. "That sounds cool, I want to see what that looks like!", I thought. ...
SE - stop firing the good guys's user avatar
2 votes
1 answer
66 views

Why isn't the link processed in this comment?

At The concept of duality, it looks like the link in the comment is perfectly well formed. Why isn't it parsed as a link?
LSpice's user avatar
  • 12k
3 votes
1 answer
116 views

`\DeclareMathOperator` at the beginning of a comment disables some link parsing

In a comment of the form $\DeclareMathOperator\a{a}$Here's a [link](http://mathoverflow.net) and [another link](http://mathoverflow.net) $\a$, neither link is ...
LSpice's user avatar
  • 12k
3 votes
1 answer
144 views

Is linking to comments possible?

I vaguely remember seeing links to comments somewhere, was it a dream or it is indeed doable?
მამუკა ჯიბლაძე's user avatar
14 votes
1 answer
370 views

Any policies around Dead links?

I have been reviewing a lot of older posts (~10 years old) and there are quite a few with links that are either dead or links that point to sites that no longer contain the relevant information that ...
JimN's user avatar
  • 265
3 votes
1 answer
84 views

When are question titles auto-expanded?

Sometimes, pasting a link into the text auto-expands to the question title, and sometimes it doesn't. For example, to take a question transitively suggested by the related links: Is there an ...
LSpice's user avatar
  • 12k
8 votes
2 answers
506 views

What to do about gmane links in old answers?

Recently, while reading this answer, I noticed that the links such as this one to gmane.org don't work. After searching around for a while, I was able to discover that these mailing list posts are ...
Robert Furber's user avatar
20 votes
1 answer
1k views

What to do with links to arXiv front end?

There are quite a few posts which link to some paper at http://front.math.ucdavis.edu/ rather than directly at https://arxiv.org/ The front for arXiv at UC Davis seems to be down for some time. (I ...
Martin Sleziak's user avatar
6 votes
1 answer
170 views

What happened to the colours?

The colour of hyperlinks on the main site changed today. While basic links remain blue, they turn orange on hover, and a darker orange-brown colour when visited: I can’t imagine this awful colour ...
Emil Jeřábek's user avatar
14 votes
1 answer
430 views

Links with IP adresses rather than website names

I have noticed several posts with links to pdf files where IP address is used instead of domain name the url.1 (I will list them below.) Several of them seem to be dead. Moreover, this type of url ...
Martin Sleziak's user avatar
8 votes
1 answer
269 views

Links to the reputation leagues are broken on MathOverflow

At the bottom of the users page you can find links to weekly / monthly / quarterly reputation leagues. Currently there is the following link: https://stackexchange.com/leagues/week/mathoverflow - it ...
Martin Sleziak's user avatar
5 votes
0 answers
369 views

Deprecating an old link

This question comes from this list of edits: https://mathoverflow.net/posts/86827/revisions An old answer included a link to a now-deprecated website (which has been taken over by a porn website); a ...
user44191's user avatar
  • 4,991
-1 votes
1 answer
77 views

Can external links to MO questions/answers be made more informative?

On several occasions I have sent by email links to MO questions or answers. They appear just like this - say, https://mathoverflow.net/a/287214/41291 Is it difficult to achieve that such links in ...
მამუკა ჯიბლაძე's user avatar
14 votes
3 answers
598 views

Forbid (or rewrite) proxy links in answers

One can see from the recent discussion Correcting links with university proxy (especially MathSciNet links) that some users add in their posts links that only work for people behind a specific proxy, ...
Federico Poloni's user avatar
16 votes
1 answer
622 views

Correcting links with university proxy (especially MathSciNet links)

Let me first say, that I consider links to papers referenced in MO posts a useful things. And so do other users, judging by an older discussion on this topic: Is it worth editing old posts to add ...
Martin Sleziak's user avatar
4 votes
2 answers
385 views

edits with links to material under restricted access

I have seen several times people editing a post to add a link to an article under restricted access/behind a paywall. By this I mean that the article is on some site requiring a login/payment before ...
coudy's user avatar
  • 18.6k
7 votes
1 answer
169 views

Right-clicking on a mathjax link does wrong thing

Surely I am not the only user of this site with this habit - if I want to have look at the linked content I right-click on the link to open it in a new tab, so when I finish reading I then turn to the ...
მამუკა ჯიბლაძე's user avatar
11 votes
2 answers
459 views

Is there a way to find which MO questions/answers point to which others?

Every once in a while, an old question of mine (e.g., "$C^1$ isometric embedding of flat torus into $\mathbb{R}^3$"—approaching 5 yrs old) sees a minor flurry of votes. I presume this is because ...
Joseph O'Rourke's user avatar
5 votes
1 answer
243 views

Stable url for linking

This question probably belongs to some more general meta but since most heavily I use links on MO let me still ask it here. Occasionally I link to materials which may disappear at some point - like ...
მამუკა ჯიბლაძე's user avatar
31 votes
9 answers
1k views

Privacy of software-generated links to questions and answers

Recently I noticed that the software inserts the id of the currently logged in user in the “share” link of any MathOverflow question or answer. When one is logged out, the “share” link comes out ...
Dmitri Pavlov's user avatar
7 votes
3 answers
424 views

How do I link to a MO answer?

Sometimes you see in answers or questions a link to an earlier answer to a different question. The url often is a mysterious sequence of digits and letters. How is it obtained? Linking to a question ...
Vincent's user avatar
  • 2,467
8 votes
4 answers
586 views

Is it morally all right to link to a particular bookseller?

I've just answered a question on MO by introducing a book. I was about to hyperlink the book to a particular bookseller then suddenly I doubted if it is all right to do so. Is it?
Amir Asghari's user avatar
  • 2,267
22 votes
1 answer
719 views

Should OEIS links be updated?

Historic links to the OEIS are of the form http://www.research.att.com/~njas/sequences/A097048. These links no longer work: Neil has retired from AT&T, and in the meantime has set up the OEIS ...
Hugo van der Sanden's user avatar