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Questions tagged [tags]

The tag has no usage guidance.

43
votes
2answers
1k views

arXiv vs MathOverflow - popularity of disciplines

Inspired by the comparison of programming languages by GitHub and Stack Overflow activity (e.g. this one for 2015) I decided to look at the popularity of mathematical disciplines by using data from ...
42
votes
0answers
895 views

An interactive graph of MathOverflow tags

I created a graph of tags from Stack Exchange sites (including MathOverflow), TagOverflow. It is a continuation on my previous project - plots with static graphs and (sadly) without MO (due to API ...
32
votes
1answer
574 views

Potential “technical” obstacle to migrations, and suggestion for a solution

Practical advice: If you want to/vote to migrate something to another site (especially math.SE) please make sure that at least one of the tags on the question exists on the target site (math.SE). ...
22
votes
16answers
2k 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 ...
22
votes
5answers
1k views

How should we react to the existence of Math Educators SE?

As was previously announced at meta, there is now an SE site for mathematics education (MESE). My broad questions is this: Should we react to this somehow? (More specific questions are below.) Does ...
19
votes
5answers
1k views

What should be the policy on “open problems” on MO?

The subject of this discussion are questions on "open problems" on MO. There is an existing policy on "open problems" reproduced from the (old) FAQs, which involves an open-problem tag. The ...
18
votes
1answer
456 views

Is the [completeness] tag necessary?

I have noticed today that we have a completeness tag. It currently houses seven different questions on widely different notions of completeness. Since there are widely different notions of ...
18
votes
0answers
671 views

Which “non-arxiv” tags are de facto top-level tags?

The tag system on MathOverflow is designed in such way that each question should contain top-level tag; these are the tags which correspond to subject areas on arXiv and generally have format such as ...
18
votes
0answers
500 views

What “lattices” do we need?

The tag lattices is a problem since a long time. Over the years there were varied discussions about this, but no clear resolution emerged, though some things were done to better the situation. This is ...
16
votes
6answers
1k views

Tags that encourage off-topic questions

MathOverflow has a few problematic tags which are not inappropriate by themselves but suggest off-topic ideas. A prime example of this is the calculus tag. Sometimes a research-level mathematics ...
15
votes
21answers
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!
14
votes
2answers
558 views

Recent suggested tag wiki edits

Today [Apr 21 '16] and yesterday there were a considerable number of suggested edits to previously empty tag wikis and tag wiki excerpts (browse here; viewing the full list requires >=10K points, I ...
14
votes
1answer
286 views

Could there be a warning when a new tag is created?

It is rather easy to make a typo and create a new tag by mistake without even noticing it.1 Could we have a warning saying that the user is creating a new tag so that users can notice such mistakes ...
14
votes
0answers
382 views

The existing deprecated tags should be blacklisted

TL;DR: I suggest to blacklist the deprecated tags that still exist on some questions, in order to prevent them from being added to new questions. There are a few tags which are deprecated and should ...
13
votes
3answers
753 views

Frequently asked questions about tagging on MathOverflow

Due to several discussions on the main site, I am asking this question concerning the best practices for tagging questions on MathOverflow. Unfortunately, the relevant documentation page https://...
13
votes
2answers
837 views

Reappearance of (topology) tag

I have noticed that topology tag was created again. According to list of new tags it was created Jun 9 at 7:55. There are currently 3 questions having this tag. I was not able to find a discussion on ...
13
votes
2answers
360 views

Usefulness of longer tags

This thread is meant as a place to discuss the utility (or lack of it) for longer tags. Currently, tags can have a maximum of 25 ASCII characters. That leads to interesting results such as ...
13
votes
0answers
142 views

Improve management tools of favorite and upvoted questions/answers

Here is my wish list: When one marks a question as favorite or upvotes it, give a chance to: Mark the question with a private tag. Add a private comment to the question. Its length could be limited ...
13
votes
0answers
396 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 ...
12
votes
1answer
423 views

What is the intended use of the (proofs) tag?

There is a tag called proofs. This tag has empty tag-info/usage guidance. Without any usage guidance it is quite likely to be used incorrectly. The fact that there are many deleted questions having ...
12
votes
0answers
400 views

Removal of the “symplectic” tag

There is a symplectic tag on MO that currently contains just two questions. The first question so tagged dates from March 26 2017, so this makes this tag at least 1 year and 4 months old. I believe ...
12
votes
0answers
175 views

Remove substantial tag score requirement for suggesting tag synonyms?

I have recently attempted to create the obvious tag synonym 'dg-algebras' <--- 'differential-graded-algeb'. However, my attempt was thwarted by the system's insistence that I need five total score (...
11
votes
2answers
330 views

Merge complex-analysis and cv.complex-variables?

We have distinct tags complex-analysis and cv.complex-variables, of which the latter is the arXiv standard name. They seem to mean the same thing. Should they be merged?
11
votes
0answers
217 views

Tag for errata of books

Navigating MO, it is possible to view two kinds of questions regarding errors within a book. The first kind are community-wiki questions which answers are a collaborative listing of found errors in a ...
10
votes
1answer
222 views

Who should be allowed to create a new tag?

There is a recent post on MO that includes two new tags: Beer and Bet! The problems of these two tags aside, I don't think it is a good practice to add new tags unless it is absolutely necessary. Is ...
9
votes
1answer
284 views

Policy for Naming of Tags

I just saw that the Reedy cofibrancy of the bar construction for algebras question is tagged with "simplicial-stuff" and I wonder if such "sloppy" tag-naming is considered acceptable/appropriate. ...
9
votes
1answer
167 views

How to (re)tag such that migration works?

As discussed elsewhere it is crucial that a question that should be migrated has a matching tag on the target site (otherwise the migration is rejected and the question closed on the source site). ...
9
votes
1answer
231 views

New tag for Discrete Morse Theory?

Would it be worth making a new tag discrete-morse-theory? While certainly related to classical Morse theory (which already has a tag), most of the technical tools of DMT are quite different, and the ...
9
votes
0answers
67 views

Tag suggestions on ask page

The ask page tag input box currently looks like this: The old ask page on MO 1.0 had a much more detailed description of what top-level tags on MO are: Since appropriate tagging on MO can be ...
8
votes
1answer
368 views

Why are MO tags formatted as they are?

I noticed that some of the more frequently used MO tags are formatted according to a certain pattern, e.g.: nt.number-theory pr.probability lo.logic fa.functional-analysis Why are the tags formatted ...
8
votes
2answers
222 views

Sort unanswered questions by tag

Please excuse my mo.meta ignorance. Is it possible to view the list of percentage of unanswered questions, sorted by tag? (This is somewhat ill-posed because many questions have multiple tags, but ...
8
votes
1answer
295 views

How do I delete an accidentally created tag?

While posting this question, I meant to put the constructive-mathematics tag, but I accidentally just typed "con", thereby creating a "con" tag in MathOverflow. How can I delete it?
8
votes
2answers
433 views

Currently, is it possible to have relevant question under the latex tag

A question using the latex tag was recently posted, which received a number of down votes and comments which directed to post on tex.stackexchange.com. MO predates tex.stackexchange.com and so at ...
8
votes
2answers
220 views

Should tag-wiki include a source where it is taken from?

The main purpose of the tag-info (and especially the tag-excerpt) is to help with tagging. This is especially important for the tags with ambiguous name. But usually tag-info also contains some brief ...
8
votes
0answers
145 views

Appropriate procedure for removing little used tags which are too specific

What is the correct procedure for removing tags which only have a single question, and would be better off with a less specific tag? My example is a question which was tagged 'relative-entropy'. ...
7
votes
1answer
233 views

Is the use of hierarchic tags too redundant?

Is there a policy which tags to use when there is an obvious hierarchy? For instance, questions with tags random-matrices or matrix-analysis could also be tagged more generally matrices to make ...
7
votes
4answers
146 views

How should I use the meta-tags [feature-request], [bug], [support], and [discussion]?

On meta, each post must be classified into one of four classes. Which should I use? Note that in addition to these four classes there are numerous other tags on meta that can and should be used in ...
7
votes
2answers
170 views

'Tag-removed' tags where they possibly shouldn't be

See Why is differentiating mechanics and integration art? Which functions of one variable are derivatives ? both of which are tagged [tag-removed]. Also, both of these seem to have had these tags ...
7
votes
0answers
210 views

Projective geometry tags

Would it make sense to merge the tag projective-plane and projective-space into projective-geometry? It doesn't seem useful to have to search for each of these separately.
7
votes
1answer
245 views

Tag for Fragments of Peano Arithmetic

There are quite a few questions on the main site related to (first-order) Peano Arithmetic and its fragments. Here are two examples: 1, 2 (but there are many others). It would be nice, and feels ...
6
votes
2answers
281 views

Tag referring to a book/ specific collection of problems

The scottish-book has been created today by one user, posting various questions from the given book, or adding references and retagging existing a few questions when they appear in the given book. ...
5
votes
1answer
201 views

Order of the tags at MO

I have seen a post suggesting that in SE network a tags for the question should be shown ordered by the popularity (i.e., by the number of questions): Are the tags shown in a particular order? But ...
5
votes
1answer
461 views

On the top-level tag ra.rings-and-algebras

I'm confused about the scope of the ra.rings-and-algebras The problem is related to the ambiguity of the word "algebra", which essentially has two (rough) meanings the meaning "ring", in its various ...
5
votes
5answers
296 views

Two tags for partially ordered sets

There are currently two tags for partially ordered sets: posets and order-theory. In my opinion, they mean the same thing. I see three posibilities. Merge the tags. Make them synonymous. Keep them as ...
5
votes
0answers
390 views

What is the correct way to handle questions with deprecated tags?

Occasionally some tags on MathOverflow are deprecated - it is decided that they should no longer be used. If a deprecated tag is only used in a few questions, then it can be removed manually - the ...
4
votes
2answers
201 views

What should I do about a wrong tag added by an editor?

I posted a question and tagged it "infinite-sequences". A high-reputation editor added a more general tag: ca.analysis-and-odes. Now, in principle, having a more general tag is fine---but this tag is ...
4
votes
1answer
264 views

Tag warnings on MO

In the last few months, Stack exchange has introduced tag warnings, that is, a text that is displayed when a user creates a new question that contains a specific warning, such as this example. ...
4
votes
2answers
110 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 ...
4
votes
0answers
165 views

How should questions about (various meanings of) coverings be tagged?

The word covering has various meanings in mathematics. Quite often choosing a tag-name which has several unrelated meanings can lead to problems - typically bunch of rather unrelated questions end up ...
4
votes
0answers
71 views

list of tags in chronological order

Is there a way to see a list all tags in chronological order (date created). I know one can see 'new' created tags, but my question is about all tags.