E.4
∂
T
(
z
,
t
)
∂
t
=
C
V
κ
∂
2
T
(
z
,
t
)
∂
z
2
∂
T
(
z
,
t
)
∂
t
=
C
V
κ
∂
2
T
(
z
,
t
)
∂
z
2
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