Ross Finlayson
2023-12-09 21:44:56 UTC
"But Ruzsa’s theorem required the subgroup to be enormous.
Marton’s insight was to posit that rather than being contained
in one giant subgroup, A could be contained in a polynomial
number of cosets of a subgroup that is no bigger than the original set A."
-- https://www.quantamagazine.org/a-team-of-math-proves-a-critical-link-between-addition-and-sets-20231206/
(The Quanta Magazine's are usually puff-pieces, but often about
interesting things.)
Here for example about the integers, here and generally natural integers,
there's a usual consideration about sequences of 0's and 1's, representing
subsets of the integers, with all 0's being empty and all 1's being all.
So, Ruzsa's theorem is about all, but would be, "larger" the set, then
that the researchers figured out a way to "attain" to it, then for something
like, "Falting's purity", whether the, "almost everywhere", as it were,
is not a hypocritical assignment.
https://arxiv.org/abs/2306.13403
Hmm, more about "doubling", here as about usually "doubling spaces"
and "doubling measures", about Ramsey theory, about the usual notion
of *-distribution or equi-distribution, of the 0/1 sequences, and that
the _language_ of the sequences and _space_, of the sequences, are
not the same thing, for Cantor space and Square Cantor space,
and, "Borel versus Combinatorics".
I.e., otherwise people could point at Ruzsa's theorem, and, in
a sense, point out a corresponding incompatibility, and show
counterexamples to these above theorems.
I.e., the rigorous formalist would sort of note that what really
needs be is a theory where Vitali sets make for Dirichlet and Poincare
their real analytical character, and that Banach-Tarski has quite different
arrivals of the geometric (the space) and algebraic (the words),
about the entire equi-interpretability, of otherwise these sorts results.
Marton’s insight was to posit that rather than being contained
in one giant subgroup, A could be contained in a polynomial
number of cosets of a subgroup that is no bigger than the original set A."
-- https://www.quantamagazine.org/a-team-of-math-proves-a-critical-link-between-addition-and-sets-20231206/
(The Quanta Magazine's are usually puff-pieces, but often about
interesting things.)
Here for example about the integers, here and generally natural integers,
there's a usual consideration about sequences of 0's and 1's, representing
subsets of the integers, with all 0's being empty and all 1's being all.
So, Ruzsa's theorem is about all, but would be, "larger" the set, then
that the researchers figured out a way to "attain" to it, then for something
like, "Falting's purity", whether the, "almost everywhere", as it were,
is not a hypocritical assignment.
https://arxiv.org/abs/2306.13403
Hmm, more about "doubling", here as about usually "doubling spaces"
and "doubling measures", about Ramsey theory, about the usual notion
of *-distribution or equi-distribution, of the 0/1 sequences, and that
the _language_ of the sequences and _space_, of the sequences, are
not the same thing, for Cantor space and Square Cantor space,
and, "Borel versus Combinatorics".
I.e., otherwise people could point at Ruzsa's theorem, and, in
a sense, point out a corresponding incompatibility, and show
counterexamples to these above theorems.
I.e., the rigorous formalist would sort of note that what really
needs be is a theory where Vitali sets make for Dirichlet and Poincare
their real analytical character, and that Banach-Tarski has quite different
arrivals of the geometric (the space) and algebraic (the words),
about the entire equi-interpretability, of otherwise these sorts results.