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 have noticed this on March 28.)
You can find some such posts using search for url:"*front.math.ucdavis.edu*". Or you can look at such posts which were recently bumped.
When there are dead links in posts, I'd consider useful to replace them with working link - at least if the post has been already bumped for some other reason. (For example, I guess there are many broken links to springerlink.)
However here the circumstances seem to be somewhat different:
- It seems plausible that front.math.ucdavis.edu will be operation again - in such cases no editing is needed.
- Even if the link is not working, it contains arXiv identifier - people who have at least some experience with arXiv will be able to deduce the arXiv link.
- And many people post not only link but also some other information (at least the authors and the title), which can help a lot in locating the paper.
Does somebody know what are the plans with front.math.ucdavis.edu - will it be working again in the future? And, depending on that, what is a reasonable course of action with posts which contain links to this domain.
http://front.math.ucdavis.edu/
(and a search link, which I'll ignore here). For two of these, a simple search-and-replace works, using the replacementhttps://arxiv.org/abs/
. But for the other two I needed to usehttps://arxiv.org/abs/math/
and remove a.5
from the final part of the url. I do not know why this is. $\endgroup$