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5:36 AM

@FrançoisG.Dorais I see that now there is packing-and-covering tag. I assume that it was created recently by renaming (merging) the original packing tag.

Q: Packing density of randomly deposited circles on a plane

Let's say that I have a rectangular two-dimensional surface of bounded dimensions, $[0,A]$ and $[0,B]$: Under "no overlap" constraints, I sequentially deposit circles of radii $r_c$ on this surface, where the center-point of each circle is allowed real number coordinates and is chosen with uni...

3 hours later…

Martin Sleziak

8:17 AM

@MartinSleziak I have edited that post.

@AmirSagiv As far as I can tell, this is not about (harmonic-analysis). The tag (harmonic-functions) seems more suitable here, at least to me. (I guess that if this is not correct, more experienced users will correct me.) — Martin Sleziak 52 secs ago

@MartinSleziak I was not aware of the harmonic-functions tag, and it is very relevant. Why not both? — Amir Sagiv 1 min ago

@AmirSagiv Re: Why not both? I will not pretend to know much about harmonic analysis, but to me this question seems unrelated to this area. (Of course I might be wrong.) I would suggest that we continue this discussion in chat - if needed - so that we do not leave here many comments which are related only to the choice of tag and not to the actual question. — Martin Sleziak 12 secs ago

In connection with the above discussion: There are 18 questions which are tagged both harmonic-functions and harmonic-analysis.

To me this seems a bit suspicious - my impression was that these things appear together only seldom.

But I should probably leave this to somebody who knows more about harmonic analysis.

Basically all that I know about it is that it is related to Fourier analysis on "nice" groups and it is related to Pontryagin duality.

I vaguely recall that it is usually done on locally compact Hausdorff groups; maybe also some other assumptions are needed.

15 hours later…

Martin Sleziak

11:44 PM

specific-question This question was recently bumped, so I replaced geometry with mg.metric-geometry. But I am not really sure whether geometry-related tag is needed there at all. Assistance with understanding parent/child relationships in Pythagorean Triples

Q: Assistance with understanding parent/child relationships in Pythagorean Triples

I want to start by apologising for what is probably a weak attempt at a question on a site like this, but I'm having trouble understand a concept that doesn't seem to be properly explained elsewhere - perhaps someone can put it in layman's terms. I've been trying to understand the idea on Wikipe...