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.
BohrSet
.
Doubling
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Imports
Init
MeanFourier.BohrSet.Defs
Mathlib.Combinatorics.Additive.ApproximateSubgroup
MeanFourier.Mathlib.Combinatorics.Additive.CovBySMul
MeanFourier.Mathlib.Topology.MetricSpace.CoveringNumbers
Imported by
BohrSet
.
smul_covBySMul
BohrSet
.
isApproximateSubgroup_chordSet
Dilation estimate for Bohr sets
#
source
theorem
BohrSet
.
smul_covBySMul
{
G
:
Type
u_1}
[
Group
G
]
{
B
:
BohrSet
G
}
{
K
:
ℝ
}
(
hK
:
0
<
K
)
:
CovBySMul
G
((
14
*
K
)
^
B
.
dimSqRank
)
↑(
K
•
B
)
↑
B
Dilation estimate
for Bohr sets
source
theorem
BohrSet
.
isApproximateSubgroup_chordSet
{
G
:
Type
u_1}
[
Group
G
]
{
B
:
BohrSet
G
}
:
IsApproximateSubgroup
(
28
^
B
.
dimSqRank
)
↑
B