Questions tagged [exact-duplicates]

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15 votes
3 answers

Closing as duplicate

Many things changed when MathOverflow joined the Stack Exchange Network a year ago. While most changes were quickly absorbed a few are more subtle and might have been missed by some. In particular, ...
François G. Dorais's user avatar
11 votes
2 answers

Close cross posts between here and MSE

If a question is cross-posted here and on the Math Stack Exchange, what's the policy to deal with these? For example take this question and its MSE twin. Should one of them be closed? If so, which ...
MvG's user avatar
  • 534
10 votes
0 answers

What should you do if you find old duplicates?

Sometimes I discover that "old" MO questions are duplicates of even older MO questions. Two examples: Embarrassingly, I found out that my own question: Formula for number of permutations ...
Sam Hopkins's user avatar
  • 22.4k
8 votes
1 answer

What to do with useful answers to questions closed as duplicates (or by some other reasons)?

Before the question Intuitive explanation of concentration of the measure for spheres has been marked as duplicate (correctly I believe), it has got an answer which might provide additional useful ...
მამუკა ჯიბლაძე's user avatar
7 votes
0 answers

Two copies of a question

There are two cases in the last hour of questions which have appeared twice, with both copies appearing pretty much simultaneously: 313547 = 313548 313550 = 313551 Coincidence or bug? EDIT: I ...
Jeremy Rickard's user avatar
5 votes
0 answers

Partial answer accepted, thinking it could have been easily extended and provided enough insights

Some days ago I posted a question and I accepted an answer, "although it’s only a very partial answer," as the answer author wrote in a comment. I accepted it because I thought that it ...
Penelope Benenati's user avatar
5 votes
0 answers

Are there some situations when duplicates are not shown among linked questions?

I was under the impression that if Question A is closed as a duplicate of Question B then they are linked, meaning that if you view Question A then you will see Question B in the sidebar among linked ...
Martin Sleziak's user avatar
4 votes
2 answers

Can’t vote to close question as duplicate of question without an answer

I tried to vote to close Einstein problem; on mirror symmemtry as a duplicate of Aperiodic monotile without reflections?. But the software gave me an error I wasn’t expecting: it said because the ...
Sam Hopkins's user avatar
  • 22.4k
3 votes
1 answer

What is the procedure to initiate merging of questions?

My previous question What to do with useful answers to questions closed as duplicates (or by some other reasons)? got an answer which satisfied me entirely: if a duplicate question has got a nice ...
მამუკა ჯიბლაძე's user avatar
3 votes
0 answers

Not a duplicate, but

Just encountered two questions, ADE type Dynkin diagrams and Is there a common genesis for ADE classifications? IMO, they are very-very similar, but this is not really a duplicate case, rather, ...
მამუკა ჯიბლაძე's user avatar
1 vote
0 answers

What should I do if I want to ask an almost duplicate question?

There already exists a question very like the one I want to ask, with a very partial answer by the OP. I want to ask the same question but restricted to a special case, for which I hope more can be ...
ChanaG's user avatar
  • 161