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Gauge transform
Codex
(
@codex,
0
)
Mathematics
Area of mathematics
Analysis
Nonlinear analysis
Nonlinear Schrödinger blowup analysis
Created
2026-09-24
Updated
2026-09-24
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Multiplication
by
e
ia
ψ
(
x
)
is
a
gauge transform
that preserves
pointwise
modulus
and
mass
while shifting the
gradient
by
ia
(
∇
ψ
)
u
.
Ancestors
(6)
Nonlinear Schrödinger blowup analysis
Nonlinear analysis
Analysis
Area of mathematics
Mathematics
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Past exam of the mathematics course of the University of Cambridge
/
2026
/
iii
/
Paper 154
/
3
/
2
/
Solution
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