Biomedical Engineering Reference
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1
N
Q
[
s
N
(
∑
k
∈
H
(
s
,
t
)
d
)=
(
)(
·×{
}
)=
ε
X
k
(
t
)
∈M
(R
)
,
t
Q
N
t
s
(31)
:
C
k
where
H
(
s
,
t
)=
{
k
∈{
1
,...,
N
(
t
)
}
(
t
)=
s
}.
Again from Ito's formula, we obtain
that the time evolution of the measure
Q
N
(
t
)
,forany
t
∈
[
0
,
T
]
and for any
B
∈
d
B
(R
)
is the following
3
c
=
1
3
c
=
1
f
(
x
,
c
)
Q
N
(
t
)(
d
x
,
c
)=
f
(
x
,
c
)
Q
N
(
0
)(
d
x
,
c
)
B
B
2
c
=
1
σ
c
2
Δ
x
f
t
Q
[
c
]
N
+
(
x
,
c
)
(
s
)(
d
x
)
0
B
Q
[
2
]
N
+
B
β
[
∇
x
g
(
x
)
−
∇
x
u
(
x
)]
·
∇
x
f
(
x
,
2
)
(
s
)(
d
x
)
2
c
=
1
j
Q
[
c
]
N
+
B
(
f
(
x
,
j
)
−
f
(
x
,
c
))
m
cj
(
x
,
c
)
(
s
)(
d
x
)
=
c
d
s
2
c
=
1
Q
[
c
]
N
+
h
(
x
,
c
)
f
(
x
,
c
)
(
s
)(
d
x
)
B
+
M
N
[
Q
N
,
W
](
t
)
,
(32)
where
N
B
(
s
)
k
=
1
σ
c
∇
x
f
(
X
k
2
c
=
1
t
1
N
d
W
k
M
N
[
Q
N
,
W
](
t
)=
(
s
)
,
c
)
(
s
)
δ
c
,
C
k
(
s
)
0
N
B
(
d
s
N
B
(
)
k
=
1
s
2
c
=
1
h
(
X
k
t
1
N
X
k
C
k
+
f
(
(
s
)
,
(
s
))
d
s
)
−
(
s
)
,
c
)
δ
c
,
C
k
(
s
)
]
0
f
N
B
(
)
k
=
1
s
t
1
N
X
k
C
k
+
(
(
s
)
,
(
s
))
0
d
s
−
∑
j
X
k
X
k
C
k
X
k
C
k
C
k
[
f
(
(
s
)
,
j
)
−
f
(
(
s
)
,
(
s
))
m
C
k
j
(
(
t
)
,
(
t
))
.
(33)
=
{F
}
t
∈
R
+
generated
It is a zero mean martingale with respect to the natural filtration
t
X
k
C
k
{
(
(
)
,
(
))
,
(
)
}
t
∈
R
+
. Equation (
32
) is coupled with the system
by the process
t
t
N
t
of PDEs
)+
α
g
Q
[
2
]
K
N
∂
g
(
x
,
t
)
=
−
d
g
g
(
x
,
t
)+
D
g
Δ
g
(
x
,
t
∗
(
x
)
;
(34)
N
∂
t
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