CURED - 2016-06-23

« first day (1624 days earlier) ← previous day next day → last day (3168 days later) »

Martin Sleziak

05:46

@MartinSleziak I voted to closed in one direction. (Let me know if you think the opposite direction would be better. For me the main reason was very well written answer by André Nicola.)

There is still a question whether these two questions could (should) be merged.

And I strongly suspect that there might be more duplicates or some closely related questions (perhaps even questions with slightly different assumptions on the ring or asking whether some assumptions can be omitted).

4 hours later…

Qwerty

09:46

I can't delete my own post , because it has 2 answers(none upvoted). Is it right to ask one of the answers to delete their own post?

5 hours later…

Martin Sleziak

14:21

@Qwerty I think that would be highly unusual.

If you posted some sensitive data by mistake or you have some other very important reason why the post should be deleted, it is possible to hard-delete a post. But this can be only done by SE team and it is reserved for extreme situations: meta.stackexchange.com/questions/57925/…

1 hour later…

Martin Sleziak

15:43

@MartinSleziak This one has been reopened from review queue using dupehammer..

So the update:

Proving $ \frac{x^3y^2}{x^4+y^4}$ is continuous. is closed as a duplicate of Continuity of $\frac{x^3y^2}{x^4+y^4}$ at $(0,0)$?.

Continuity of $\frac{x^3y^2}{x^4+y^4}$ at $(0,0)$? is in turn closed as a duplicate of Multivariable Delta Epsilon Proof $\lim_{(x,y)\to(0,0)}\frac{x^3y^2}{x^4+y^4}$ --- looking for a hint

Prove $\lim_{(x,y)\to (0,0)} \frac{x^2 y^3}{x^4 + y^4} =0$ preferably without $\varepsilon - \delta$. is not closed at the moment.

Multivariable Delta Epsilon Proof $\lim_{(x,y)\to(0,0)}\frac{x^3y^2}{x^4+y^4}$ --- looking for a hint is not closed at the moment.

When I look at my exchange with Did in the comments, I no longer think that the duplicate he chose has worse answer that the question he closed.

1 hour later…

Martin Sleziak

17:10

@MartinSleziak So it seems that another user closed this in the opposite direction than I voted..

Should this be closed as a duplicate as well, or does the fact that the question assumes that we are working in a principal ideal domain (rather than just integral domain) make some difference? In a P.I.D., if $a^m = b^m$ and $a^n = b^n$ for $m, n \in \mathbb{N}$ with $\gcd(m,n) = 1$, then $a=b$

2 hours later…

Martin Sleziak

19:20

This room now has much less activity than it used to have. For example, if you look at January 2015, there were several users relatively active in this room.

5 hours later…