The symmetry tag has no wiki summary.
0
votes
1answer
256 views
Symmetric-decreasing rearrangement of a function
I'm studying section 3.3 of Analysis by Lieb and Loss, about symmetric-decreasing rearrangement of functions.
Let $A\subset \mathbb{R}^n$ a Borel set of finite Lebesgue measure. They define
...
0
votes
1answer
82 views
Polyhedra with symmetries order three
If I have a natural number $o=2n$ or $4n$ I can create a polyhedron whose group of symmetries has order $o$ by making a polygon like $C_n$ and then dragging it out to make a prism (I believe this is ...
