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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6
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1answer
329 views

The tag even-and-odd-extensions

So there's this tag even-and-odd-extensions. There are 16 questions with this tag which consist of: Even and odd functions Even and odd integers Even and odd digits of a number Extending a function ...
-8
votes
1answer
265 views

Should MSE actively (structurally) encourage questions which disseminate information across specialties?

Over the past month, I have used (and perhaps abused) both MSE and MO in order to obtain certain purely mathematical information of critical importance to my team at this point in its research ...
-5
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1answer
256 views

Homework questions

I've noticed that there's kind of a split in the questions that people ask on MSE. Some people are seeking help on homework problems that they've struggled with, while others have questions or ...
20
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2answers
869 views

Is the tag [hoffman-kunze] necessary?

The tag hoffman-kunze was recently added to a few questions: Typos in Hoffman and Kunze Why is $\pi_r(L)$ a linear transformation into $\Lambda^r(V)$ Proof of Theorem 7 (Chapter 5) in Hoffman and ...
18
votes
21answers
1k views

Tag management 2018 [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 ...
19
votes
2answers
829 views

For limits-without-lhospital, is the intent to NOT use the definition of the derivative?

The infamous limits-without-lhospital tag. A lot of these questions are of the form $$\lim_{x \to a}\dfrac{f(x)-f(a)}{x-a}$$ and anyone who's seen the first few chapters of a typical calculus book ...
21
votes
2answers
530 views

Is the tag [venn-diagram] necessary?

Recently the tag venn-diagram was created, with a tag wiki, and currently 20 questions tagged (although 19 of which were tagged by the creator shortly after). Do we really need this tag? On the one ...
7
votes
2answers
326 views

What is the homogeneous-elements tag supposed to be used for?

Consider the tag homogeneous-elements. I ran into this tag today used to describe the rate parameter of an exponential distribution. Given my experience in probability, I'm pretty sure this isn't ...
11
votes
1answer
234 views

What is the scope of the [utility] tag?

It was pointed out to me that the description of the utility is ambiguous. It currently reads: A tag for all questions involving a type of utility function. With a wiki which is even worse: ...
7
votes
1answer
967 views

Why so many Riesz Representation questions in such short time?

I was scrolling through MSE on the cell phone earlier today and these popped up: and the list went on. Is this an artifact of the search engine, or is there some reason for the sudden "interest" in ...
12
votes
0answers
285 views

Limit for number of questions where tag can be added by tag-creator soon after the creation of tag

Occasionally we have seen a situation like this: A user creates a new tag. The tag is then discussed on meta and the consensus is that the tag is not suitable and should be completely removed. However,...
3
votes
1answer
297 views

Should we have a tag for the mean value property of harmonic functions?

A tag named mean-value-theorem has been created quiterecently. (It is still listed among the new tags.) A tag with the same name was discussed before on meta and rejected: Tag proposal: mean-value-...
-3
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2answers
297 views

Just a hint please. [duplicate]

I have seen some posts which mentioned they want only a hint. They want to think about their problem and solve it themselves. Nevertheless some people give an answer, good or poor, even Op insist to ...
4
votes
2answers
310 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
votes
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
votes
2answers
791 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
606 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
248 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 ...
4
votes
1answer
149 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
vote
0answers
84 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
votes
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 ...
15
votes
4answers
260 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
votes
0answers
469 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
votes
0answers
87 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
votes
0answers
80 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
votes
4answers
659 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 ...
11
votes
1answer
462 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
83 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
votes
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
votes
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
vote
0answers
69 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
134 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?
14
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
392 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
315 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
483 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 ...
7
votes
1answer
293 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
votes
2answers
393 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
73 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
180 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
250 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
votes
0answers
316 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
919 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
vote
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
400 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
605 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
358 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 ...

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