Questions tagged [tagging]

Tags are keywords or labels that categorize and group your question with other, similar questions. If your post at meta is about suggesting new tags, choosing correct tags for some question, suggesting removal of some tag, this tag is appropriate for such question.

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4
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2answers
306 views

Tag for semicontinuity?

A few days ago the tag upper-semicontinuity was created and later removed. This lead to a discussion about this tag in the tag management thread. As suggested by Asaf, it might be more reasonable to ...
7
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1answer
288 views

Could having (tag-removed) tag be useful?

Quite often we have situation that discussion about a specific tag results in consensus that the tag should be removed. And the removal process means that the questions having that tag are retagged ...
19
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2answers
779 views

The birthday tag

Recently the birthday tag has emerged and it quickly has around 100 questions tagged (mainly by one user I suppose). This is indeed not the first time we have this tag. The last time it was deleted ...
18
votes
1answer
589 views

Riemann-Stieltjes Integral tag

There are currently separate tags for lebesgue-integral and riemann-integration, and there have been a couple cases, which were asking about Riemann-Stieltjes integration. I am wondering why is there ...
2
votes
2answers
243 views

Is this elementary-set-theory or set-theory

I've been involved with this question, in which the presence of the tag set-theory has been contested (check out the edit history). The asker is dealing with questions about equinumerousness of ...
2
votes
1answer
73 views

Why does the tag “(solution-verification)” show as “(proof-verification)”?

So I want to clarify/verify a specific solution. This is my solution to a problem, so it is not like I want to verify a specific proof/theorem or clarify why and/or how it works. So, in my tags, I ...
1
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0answers
77 views

Confusion about [tag:trigonometry]

According to its tag info, trigonometry is for questions about Trigonometric functions (both geometric and circular) . . . What throws me off is “geometric.” Which of the following categories of ...
0
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0answers
35 views

Would somebody like to create a “homography” tag? [duplicate]

In my interest in mapping between a rectangle and its projection resulting in a quadrilateral I have learned of the important concept "homography". There are many homography questions here on the site ...
12
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4answers
217 views

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 ...
15
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0answers
468 views

What about (lecture-notes) tag?

There are many questions asking for lecture notes on some topic. And about a week ago also the tag lecture-notes has been created. The question is to which extent this tag can be useful and whether it ...
2
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0answers
85 views

Can I ask this question here?

The question: Let $\mathcal{S}$ be the set of strings of length at most $100$, drawn from a finite alphabet $A$; for any $s \in \mathcal{S}$, $s = a_1 , . . . , a_{100}$ where each $a_j \in A$. Let ...
3
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0answers
79 views

Should “natural-numbers” really be a synonym for “elementary-number-theory”? [duplicate]

The title said it all. I disagree with this tag synonym. I (more than once) used "natural-numbers" to tag my questions about the logic structure of natural numbers, more related to logic and model ...
3
votes
1answer
87 views

Is it possible to find out whether a tag has been removed by an automated process?

A tag which exists only on one question is automatically deleted after certain time unless it has a tag-wiki. Is it possible to check whether a tag have been removed by this process (because of being ...
16
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4answers
643 views

Which (if any) inequalities with real numbers should have separate tags?

There are certainly many inequalities which are rather important and useful and which appear frequently in various areas in mathematics (AM-GM, Jensen, Cauchy-Schwarz, etc.) The question I want to ask ...
10
votes
1answer
444 views

Do some calculus theorems deserve to have their own tag?

The question is basically in the title: Should we have tags for some individual theorems from calculus? (Or perhaps groups of theorems?) If so, which ones deserve their own tag? It is not ...
-3
votes
1answer
82 views

Why do we have “finance” tag for math.SE

I saw there is a finance tag in math.SE, and people are allowed to ask directly finance questions in math.SE. Curious why? Although finance questions could need math calculations, a lot of other ...
2
votes
2answers
135 views

Is it okay to include a tag to get attention of a specific community?

Imagine a question fitting into tags z y and x, but you know (and mention) a special case might be answered by a certain field of mathematics which is included in tags w and v and you think people ...
10
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1answer
271 views

converse of propositions tag

Recently a tag converse-of-propositions has been created https://math.stackexchange.com/questions/tagged/converse-of-propositions There is no description and only 3 questions by the same user. I ...
4
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0answers
44 views

Tag badges suggestion

I want to ask whether there are tags which shouldn't have badges attached. For example I have a bronze badge for the "soft question" tag. Now my preference would be to keep tag badges on the site to ...
1
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0answers
67 views

Would [cantor-theorem] be a constructive tag?

Would [cantor-theorem] be a constructive tag? A search for question's containing the keywords yields $427$ results. Feel free to comment to discuss below or just upvote/downvote. Note: The ...
4
votes
1answer
110 views

Can you change the name of a tag?

Can you change the name of a tag? I recently came across the tag sage, which I think should be renamed to sagemath to be more clear. Is it possible to change the name of a tag? If so, how?
15
votes
35answers
2k views

Tag management 2017 [duplicate]

New year, new tag management thread. Rules of the game are basically the same: Post your suggestion as an answer here if you see A particularly bad tag (a rule of thumb: «if I can't imagine a ...
13
votes
2answers
390 views

Do we need separate tags for (betting) and (gambling)?

Quite recently the betting has been created. However, for a long time there is a tag called gambling. To me the two tags seem rather similar Personally, I do not see great need for a new tag. And a ...
10
votes
3answers
313 views

Tag for quaternion algebras?

A quaternion algebra is a generalization of the classical Hamiltonian quaternions. It is a $4$-dimensional algebra over a field $F$ with basis $1,i,j,ij$ subject to the relations $$ i^2 = a, \quad j^...
14
votes
1answer
479 views

Adding [contest-math] tag to questions

I noticed that the contest-math tag was added to many questions recently, even to questions which do not mention any connection to a mathematics competition. According to the tag wiki, this tag is ...
6
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1answer
292 views

Excessively long tags

"combinatorial number theory" "linear fractional transformations" The software forbids these two tags because they are too long. Should the length limits be adjusted? Or is there some way of making ...
5
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2answers
374 views

Tags for separation axioms and countability axioms for topological spaces

In topology, several separation axioms (such as Hausdorff, completely regular, normal, ...) and countability axioms (such as first countability or separability) are often used ant there are also some ...
3
votes
1answer
71 views

(block-matrices) tag is behaving strangely

I'm not sure what's going on with the block-matrices tag. I recently tried to tag a question as block-matrix related through an edit, but when I did the tag didn't show up. I can look up the (block-...
9
votes
1answer
177 views

About changing incorrect tags in suggested edits

Very often when I see a edited question made by another person, I see that the editor didn't change the wrong tag, for example, it's very typical that questions about high school algebra are tagged ...
2
votes
0answers
73 views

What is best tag for “spot the mistake” questions?

Occasionally we get a question of the form: "Look at this derivation/computation. Clearly, the result is wrong. Where is the mistake?" It is slightly different from typical solution-verification ...
7
votes
1answer
248 views

Similar tag descriptions for (physics) and (mathematical-physics)

I understand t.b.'s reasoning on why we should keep both the physics and mathematical-physics tags, but I notice that their wikis, and more specifically their excerpts, are sufficiently similar that ...
11
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0answers
315 views

Do we need the “divergence” tag?

Currently, there exist a tag divergence, about which I'd like to know your opinion: the tag has no usage guidance and no tag wiki. This means that users cannot know whether this tag is dedicated to "...
5
votes
2answers
918 views

Should we blacklist [homeomorphism]?

In the past few days, I've been repeatedly removing the homeomorphism tag. I don't see why this tag is useful, it adds nothing to the question, it adds nothing to its classification. Perhaps it is ...
1
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0answers
48 views

What tag to use for elementary polynomial equations? [duplicate]

Many questions on MSE posted by elementary school (or high-school) pupils are of the form "find $x$ if $x^{101} = x^{51}$" (this is a real example that has just got posted). Clearly, this question is ...
4
votes
3answers
394 views

Tag proposal: squeeze-theorem

There are many questions about the squeeze theorem on this site, and seeing that some other theorems such as the Chinese Remainder Theorem, Stokes theorem, Bayes theorem, etc. have their own tags, why ...
22
votes
1answer
604 views

The functional analysis tag

Many elementary questions about functions are given the "functional-analysis" tag. Consider the following examples, all of which are very recent: 1, 2, 3, 4, 5. This is not a recent phenomena; I've ...
10
votes
1answer
355 views

How should questions about Cantor space and Cantor cubes be tagged?

There exists a tag called cantor-set. Based on the current revision of the tag-info it is about Cantor ternary set and also about generalization to fat Cantor set. Both of them have very similar ...
-2
votes
1answer
137 views

Would a (proof-creation) tag be useful?

I'm thinking of creating a tag called proof-creation, where the tag will be for questions asking about how to start a proof, since I haven't seen it before. Thoughts?
-11
votes
1answer
134 views

Allow users to edit tags to untagged

For some reason, I am not allowed to remove tags without adding in a relative tag. I (like probably most people whose contribution is mainly answering questions) really only want to help people with ...
1
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0answers
42 views

Tag for the field of fractions

I wanted to edit in the fractions tag a related / suggested alternate tag for the field of fractions of a ring (integral domain). But to my surprise I can't find a tag for the field of fractions! ...
8
votes
3answers
252 views

Can you tell who created a tag

I recently created a tag, will anywhere show that it was created by me? Same with other tags, can I see who created them?
2
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0answers
42 views

What is the right tag for this question?

I stumbled on How to find distance from emitter using TDOA? because I study hyperbolic geometry and this question was wrongly tagged as such. But then what is the right tag? There is no tag on ...
2
votes
1answer
83 views

Can we have a tag for integer base $b$ representation?

I see a lot of interesting questions, broadly in the category of contest math and recreational math, about the base $b$ expansion of an integer, often $b = 10$. For example: the sum of the digits, ...
1
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0answers
35 views

Tag wiki edit: [algebra-precalculus] includes simplification.

I recently asked this question, which I wanted to tag in such a way that would indicate it was a very basic question about simplifying an expression. Because of 6005's comment, I learnt about the ...
5
votes
2answers
219 views

Are the tags “projective-spaces” and “projective-geometry” synonyms?

From their tag descriptions, it sounds like projective-space and projective-geometry are synonyms. On the other hand, I could imagine in theory how they could be differentiated (namely one doesn't ...
13
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0answers
344 views

How should questions about rings be tagged?

It seems that there is no clear consensus about tagging questions about (or related to) rings. There are several tags which might apply. The tag-excerpt for ring-theory says: This tag is for ...
1
vote
1answer
112 views

Questions tagged as Maple

I have been using MapleSoft's Maple for a while. Previously, I worked with Mathematica and it was great, mostly because there are a lot of resources on the web and a dedicated stackexchange site for ...
5
votes
1answer
229 views

What are the more convenient criteria to create new tags?

If one searches the word -theore in Tags one find some tags with the name of well known theorems as stokes-theorem or bayes-theorem. Also if one type lemm one finds only three tags, that are borel-...
3
votes
1answer
196 views

With all other variables held constant, are tags sufficient to contextualize a question?

Recently, I made a comment here that, for this particular question, given the tags (the tags were there before the edit occurred), it is clear what the context should be. However, one of the people ...
3
votes
0answers
89 views

Merging “fourier-series” and “trigonometric-series”?

Currently, fourier-series has 2202 questions and 101 followers, while trigonometric-series has only 324 questions and 9 followers. I suggest merging the two, but also keeping "trigonometric-series" as ...