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Past exam of the mathematics course of the University of Cambridge
/
2023
/
iii
/
Paper 306
/
2
/
a
/
Solution
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Past exam of the mathematics course of the University of Cambridge
2023
iii
Paper 306
2
a
2026-09-28
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The universal
stress-tensor operator-product expansion
in
a
two-dimensional conformal field theory
is
T
(
z
)
T
(
w
)
∼
(
z
−
w
)
4
c
/2
+
(
z
−
w
)
2
2
T
(
w
)
+
z
−
w
∂
T
(
w
)
.
(1)
Its fourth-order
coefficient
defines
the
central charge
c
.
Ancestors
(11)
a
2
Paper 306
iii
2023
Past exam of the mathematics course of the University of Cambridge
Mathematics course of the University of Cambridge
Course of the University of Cambridge
University of Cambridge
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