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Fig. 11.57
Mapping upper-layer conductance
S
by the Singer-Fainberg method; (
a
) an initial model
of the
S-
anomaly, (
b
) the conductance
S
evaluated by the Singer-Fainberg inversion (Singer and
Fainberg, 1997)
1
2
S
1
(
x
H
int
x
(
x
,
y
,
0)
=−
,
y
)
E
y
(
x
,
y
,
0)
(11
.
32)
1
2
S
1
(
x
H
int
y
(
x
,
y
,
0)
=
,
y
)
E
x
(
x
,
y
,
0)
.
In the vector form
=
y
)
H
τ
(
x
1
2
S
1
(
x
H
int
τ
(
x
,
y
)
=
,
y
) [
R
(
−
/
2]
E
τ
(
x
,
y
)
(
x
,
,
y
)
a
(11
.
33)
=
[
I
]
−
y
)
H
τ
(
x
H
ext
τ
H
int
τ
(
x
,
y
)
=
H
τ
(
x
,
y
)
−
(
x
,
y
)
(
x
,
,
y
)
,
b
