# Expanding abbreviated tag names

As the character limit for tag names was raised to 35, we can now replace some awkwardly abbreviated tag names (like geometric-invariant-theor) with their fully spelled out names.

I've already done that for a few tags:

are now synonyms of the full versions.

If you come across further instances of , please drop a note here so that it can be fixed without bumping dozens of posts.

• Should related threads be closed as a duplicate of this one? – Asaf Karagila Aug 9 '17 at 22:06
• A similar expansion effort is taking place at MO, meta.mathoverflow.net/questions/862/help-cleanup-tags, where it has been suggested that a search for length-25 tags would be a good way to spot awkward abbreviations. – Gerry Myerson Aug 9 '17 at 23:25
• @GerryMyerson In fact, the same thing happen here, although it was discussed in chat. As you can see in the transcript, Daniel started with length 25 tags and then he also went through tags with length >=20. – Martin Sleziak Aug 10 '17 at 3:48
• @Daniel Fischer, any updates regarding the list of short tags? As far as I can see, no actions have been taken for that list. – wythagoras Aug 23 '17 at 12:49
• @wythagoras I wasn't sure what to do with svd, pde and sde (these are pretty standard abbreviations), so I waited to see whether some opinions on those would be posted. And then - oh look, a squirrel - I sort of got distracted from the whole thing. – Daniel Fischer Aug 23 '17 at 20:02

I also went trough the list of extremely short tags (using this query).

Since I'm not sure how much the abbreviated version is used in general, it is not entirely clear which one of these tags should be the master tag and which one the synonym, and whether the synonym is even needed. If some tag needs more discussion, please expand it to a new answer.

• I think that pde should stay (but it can't hurt do have synonyms between pde and partial-differential-equations). Maybe the same is true for sde and svd, since both are very common abbreviations. The others I agree with for sure. – mrf Aug 13 '17 at 14:55
• I agree that pde and sde should stay. I mainly included them for completeness, and maybe for the reverse synonym (i.e. having pde as master tag and partial-differential-equations as the synonym). – wythagoras Aug 23 '17 at 12:50
• Another alternative for (lft) was suggested in Tag management 2017. – Martin Sleziak Aug 30 '17 at 7:49
• I did something about all proposals. I am not sure I chose the best option each time but it's easy to change. Feel free to comment obviously. Maybe it's best to take the changed version as a new base line and to propose changes in the usual ways (eg, post in tag management thread) – quid Dec 18 '19 at 22:35

The is for divisors in algebraic geometry.

Among the options is expanding the tag name to .

• I doubt we'll find a better name than divisors-algebraic-geometry, so I'll probably do that. But first somebody needs to check whether any mistagged questions about divisibility are in there. I won't do that before dinner. – Daniel Fischer Aug 13 '17 at 15:44
• @DanielFischer I see that now there is a synonym (divisors) $\to$ (divisors-algebraic-geometry). Would removing (divisors) be better? (I mean, it is possible that somebody will think that they are adding the tag (divisors). And if they are not careful, they will not notice that the tag was changed after it was added. I agree that the likelihood of incorrect tagging is smaller than before, but I think that it might still happen.) – Martin Sleziak Aug 14 '17 at 5:55

It has been suggested that is expanded to :

• Tag name has been expanded. – Daniel Fischer Aug 13 '17 at 15:35

The can be expanded to .

See this answer: Tag cleanup 2014

• Also done that. – Daniel Fischer Aug 13 '17 at 15:35