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SmokeDetector
SmokeDetector
3:03 AM
 
 
2 hours later…
SmokeDetector
SmokeDetector
5:09 AM
[ SmokeDetector | MS ] Bad keyword in answer, blacklisted website in answer, pattern-matching website in answer, potentially bad ns for domain in answer, potentially bad keyword in answer (260): ENS Paris preparation by wandaibson on math.SE
 
 
5 hours later…
user1729
user1729
10:29 AM
The question Challenge 15 x 15 Puzzle is a PSQ.
 
 
6 hours later…
user21820
user21820
3:59 PM
D1, D2, D3.
D4, D5, D6.
D7, D8, D9.
C1, C2, C3.
C4, C5, C6.
C7, C8, C9.
@user1729 It's also a common homework problem. Closed.
 
 
2 hours later…
darij grinberg
darij grinberg
6:28 PM
are you even looking at those threads?
this was dupe-closed but the dupe has been deleted
 
 
1 hour later…
Jyrki Lahtonen
Jyrki Lahtonen
7:41 PM
@darijgrinberg That was an attempt to cheat at a contest. No mercy from me.
2
@BillDubuque That is a curious case. If it were over a field it would surely be a duplicate. But it is over the integers. I don't think I have seen it before. As the answers show, it is a bit more delicate than the usual questions where we call upon CRT.
 
darij grinberg
darij grinberg
8:03 PM
@JyrkiLahtonen: but the contest is over. Whom exactly are you punishing? (Deleting the question while the contest is ongoing is fine.)
About the other thread, note that the answer over the integer is "non-isomorphic", while over a field it's "isomorphic".
Not a minor difference ;)
 
Bill Dubuque
Bill Dubuque
8:37 PM
@JyrkiLahtonen I'm fairly sure I've seen closely related cases discussed, but perhaps they were elsewhere (sci.math or Ask an Algebraist). If only we had better search tools, or better buzzwords (how I locate many dupes).
 
Bill Dubuque
Bill Dubuque
8:57 PM
Strangely said day old answer was downvoted not long after my prior comment. If the downvote has anything to do with mathematics then I'd be very grateful to know more so that I can improve it if need be. It's rather sad that one can't ask for help in rooms like this without attracting (likely) political downvotes.
 

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