
P
Q Q
W
T
P
Ψ
0
W
P
< 0 .
P Q
Q = I
Ψ
i
+ P
T
Θ
T
+ ΘP < 0 , i = 1, . . . , N .
Ψ
i
= Ψ
T
i
∈
R
n×n
i = 1, . . . , N P ∈ R
l×n
P = r
P
< n
Θ ∈ R
k×l
W
T
P
Ψ
i
W
P
< 0 , i = 1, . . . , N .
Ψ
i
− µ
i
P
T
P < 0 , i = 1, . . . , N
µ
i
> 0 µ = max
i
µ
i
Ψ
i
− µP
T
P < 0 , i = 1, . . . , N .
Θ = −(1/2)µP
T
Ψ
i
+ P
T
Θ
T
+ ΘP < 0 , i = 1, . . . , N .