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.
PhaseRetrieval
.
Constant
.
Internal
.
LocalCore
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Imports
Init
Mathlib.MeasureTheory.Integral.Prod
Mathlib.MeasureTheory.Measure.WithDensity
LeanPool.PhaseRetrieval.Constant.Internal.MainTheorem
Mathlib.MeasureTheory.Integral.Bochner.ContinuousLinearMap
Imported by
FockSPR
.
gaussian_integral_const_add_polyEval
FockSPR
.
LocalFockSPR_of_small_norm
LocalCore
#
source
theorem
FockSPR
.
gaussian_integral_const_add_polyEval
{
D
:
ℕ
}
(
a
:
Fin
D
→
ℂ
)
(
c
:
ℂ
)
:
1
/
Real.pi
*
∫
(
z
:
ℂ
)
,
‖
c
+
polyEval
a
z
‖
^
2
*
Real.exp
(
-
‖
z
‖
^
2
)
=
‖
c
‖
^
2
+
fockNormSq
a
source
theorem
FockSPR
.
LocalFockSPR_of_small_norm
(
p
:
Polynomial
ℂ
)
(
hp_real
:
(
Polynomial.eval
0
p
)
.
im
=
0
)
(
hsmall
:
1
/
Real.pi
*
∫
(
z
:
ℂ
)
,
‖
Polynomial.eval
z
p
‖
^
2
*
Real.exp
(
-
‖
z
‖
^
2
)
≤
(
1
/
4601
)
^
2
)
:
∫
(
z
:
ℂ
)
,
‖
Polynomial.eval
z
p
‖
^
2
*
Real.exp
(
-
‖
z
‖
^
2
)
≤
23003
^
2
*
∫
(
z
:
ℂ
)
,
|
‖
1
+
Polynomial.eval
z
p
‖
-
1
|
^
2
*
Real.exp
(
-
‖
z
‖
^
2
)