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Ground-state transform for a weighted Dirichlet energy
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Area of mathematics
Analysis
Functional analysis
Sobolev space
Poincaré inequality
Weighted Poincare inequality
Created
2026-10-03
Updated
2026-10-14
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For
w
=
e
−
Φ
and
g
=
h
e
−
Φ/2
,
integration by parts
gives
∫
∣
h
′
∣
2
e
−
Φ
=
∫
∣
g
′
∣
2
+
∫
(
4
∣
Φ
′
∣
2
−
2
Φ
′′
)
∣
g
∣
2
.
(1)
This conjugates the weighted
Dirichlet energy
to
a
Schrödinger operator
with
effective potential
∣
Φ
′
∣
2
/4
−
Φ
′′
/2
.
Ancestors
(8)
Weighted Poincare inequality
Poincaré inequality
Sobolev space
Functional analysis
Analysis
Area of mathematics
Mathematics
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Past exam of the mathematics course of the University of Cambridge
/
2018
/
ii
/
Paper 4
/
23F
/
a
/
Solution
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