Tagging - 2017-04-05

4:01 AM

A new tag conformal-map. Although this particular questions is at -2 with no answer, so it is possible that it is eventually auto-deleted.

-2

Q: Doubts on Complex Analysis

I have doubts in the following two problems. One is this and the other one this For the second question letting $f=u+iv$ I found that $x=\dfrac{u-3u^2-9v}{(1-3u)^2+9v^2}$ and $y=\dfrac{v}{(1-3u)^2+9v^2}$. Now how to proceed ? And for the map in the first image to be a Mobius transformatiion w...

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7:34 AM

0

Q: Association of an Email Address with an Accoun

I seem to have been in a lot of problems after a merge of two accounts recently. I checked my Profile associated with the E-mail address nbhmexam@gmail.com. I logged in and and clicked in Edit Profile Section and then My Logins. To my disbelief there are six e-mail addresses associated with th...

discussion support tag-management merge-accounts

Martin Sleziak

9:25 AM

in Mathematics, 29 secs ago, by Martin Sleziak

@LeilaHatami Sorry for pinging you about completely unrelated issue, but I thought that it might be reasonable to let you know that there was a discussion on meta about a tag-synonym you have recently suggested: Do we really want (discrete-mathematics) $\to$ (combinatorics) synonym?

in Mathematics, 8 secs ago, by Martin Sleziak

If there is some further discussion needed about this you can comment (or answer) on meta or we can discuss this in the tagging chat room.

The above is related to the discussion about the suggested synonym discrete-mathematics $\to$ combinatorics.

I feel like it's a good idea to alter the person whose suggestion this was: @Leila Hatami — Stella Biderman 16 hours ago

@StellaBiderman I have pinged Leila Hatami in chat. To my best knowledge of chat and notifications in chat, she should get some notification about this. — Martin Sleziak 1 min ago

Martin Sleziak

10:56 AM

in Mathematics, 12 mins ago, by Leila Hatami

@MartinSleziak Thank you dear Martin. I will read it.

@MartinSleziak Thank you for notifying me. The suggestion has been closed and there is post with 19 votes against it! I know that this two concepts are far away but I suggest it for more organization. I thought that removing combinatorics and merge it to discrete math could be useful.... — Leila Hatami 52 secs ago

If your intention was to choose discrete-math as the master tag, then the synonym you have suggested was in the wrong direction. As you can see in your suggestion combinatorics was the master tag.

At least I agree that combinatorics $\to$ discrete-mathematics makes more sense. (But I still do not like this synonym.)

But I definitely think that if a synonym which influences such large number of questions is suggested, this should be discussed on meta first.

Martin Sleziak

12:38 PM

@GEdgar Since you are among top users in both tags, you could probably be a good person to ask whether suggestion that (fractal-analysis) and (fractals) should be synonyms. See this meta post: math.meta.stackexchange.com/questions/22348/tag-management-2‌016/… Sorry for pinging you on an unrelated post - after you see this, feel free to ping me in chat to let me know that I can delete this comment. Thanks! — Martin Sleziak 1 min ago

@MarkMcClure Since you are among top users in both tags, you could probably be a good person to ask whether suggestion that (fractal-analysis) and (fractals) should be synonyms. See this meta post: math.meta.stackexchange.com/questions/22348/tag-management-2‌016/… Sorry for pinging you on an unrelated post - after you see this, feel free to ping me in chat to let me know that I can delete this comment. Thanks! — Martin Sleziak 6 secs ago

0

A: Tag management 2016

I think (fractal-analysis) and (fractals) could be merged. The first one is barely used & almost all of it's question has the second one as a duplicated tag.

Martin Sleziak

1:32 PM

Hi @MarkMcClure.

I assume that you came here because of my comment on meta - so I guess the comment can be deleted now.

Mark McClure

@MartinSleziak I don't think they should be synonyms. In my mind, "fractal analysis" is a propert subset of "fractal geometry". Fractal analysis involves the study of measures on fractals, the construction of a Laplacian on connected fractals, and the application of these things to differential equations on fractals. A nice very short intro is Bob Strichartz article in the Notices

Martin Sleziak

And I see that also prof. Edgar commented on this:

Although not actually a duplicate (fractal analysis could be considered a subset of fractals), they could definitely be merged. — GEdgar 7 mins ago

Mark McClure

@MartinSleziak Yep! Again, I don't think they're the same. I'd be in favor of merging fractal-analysis into fractals - but not retaining fractal-analysis as a synonym.

Martin Sleziak

@MarkMcClure So you suggest to remove fractal-analysis and replace it by fractals, if I understand you correctly.

Mark McClure

@Martin I think that would be fine.

Martin Sleziak

1:37 PM

It would be probably nice if you could post that suggestion as a comment on the meta post about those two tags.

In that way, more users will see the comment. (And know that this is a reasonable suggestion.)

Mark McClure

I've removed the "fractal-analysis" tag from many posts already and was planning on editing the fractal-analysis tag description when I reached 20,000. But, since it's not super active, I think your approach is better.

Martin Sleziak

In fact, I do not have any approach.

I simply tried to bring the suggestion on meta to the attention of some users who know something about the area.

Mark McClure

@MartinSleziak One question: When tags are merged, does that mean that one tag disappears and is subsumed into the other?

If so, then I think that's a good idea.

Martin Sleziak

@MarkMcClure I suppose you know that you can edit tag-wiki even below 20k. The only difference is that it is only a suggested edit and has to be approved.

@MarkMcClure To the best of my knowledge if fractal-analysis is merged with fractals, this means that: 1. (fractal-analysis) disappears completely; 2. All occurrences of (fractal-analysis) are replaced by (fractals).

Mark McClure

Yes, I did know that. But, again, I'll suggest the merger. Thanks!

Martin Sleziak

1:42 PM

This is an operation which only moderators can do. Some details about merging can be found in this answer.

I do not think that the issue with these two tags will be resolved quickly. (Tag-related issues usually do not receive much attention on meta.) But I do not think it is a pressing issue. And in this way at least it received some feedback.

Yes, I agree they could be merged: "fractal-analysis" could be subsumed into fractals. — Mark McClure 1 min ago

I will add a link to this discussion to chat. I will stress that both above comments suggest merging those two tags, but not making a synonym. I just wanted to state this explicitly. (Although it is implicit in the comments by GEdgar nad Mark McClure - at least if I understood them correctly.) — Martin Sleziak 29 secs ago

@MarkMcClure Since you say that you support merging the two tags, you could probably upvote the post too - to give some signal to the rest of the community that there is at least one user who agrees with the suggestion.

And thanks for your response and for your time!

Martin Sleziak

2:04 PM

Since both GEdgar nad Mark McClure - who are definitely active in the (fractals) tag and knowledgeable of the topic - recommend merging, I have cast the first upvote for the suggestion on meta.

Although I am not sure whether he will read this - thanks to G. Edgar for his comments, too.

user8469759

Hi guys

out of curiosity

if a positive sequence a_n -> 1 (strictly positive) does this happen if and only if log(a_n) -> 0?

I've tried to prove it by myself using the epsilon delta definitions

but I can't work out all the details

for each epsilon there an m such that -epsilon < a_n - 1 < epsilon for all n >= m

which is equivalent to

1 - espilon < a_n < 1 + epsilon iff log(1 - epsilon) < log(a_n) < log(1+epsilon)

assuming natural logs I have log(1 + epsilon) < epsilon, but I don't have log(1 - epsilon) > -epsilon

So I'm missing some details

any hints?

Martin Sleziak

@user8469759 As you can see from the room description, this room was created for a specific purpose. You can try main chat room or calculus and analysis chat room.

user8469759

I moved my question there

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$Mathematics$ Tagging