1

1

1

n

in

i

i

r

i









(1

)

1

m

n

ef

i

i

m

 























p

j

j

j

n

p

j

j

j

p

j

j

n

p

j

j

m

D

i

m

D

i

m

i

m

i

j

j

1

1

1

1

(1

)

n

FV

PV

r





(1

)

FV

PV

n r



 

(1

)

n m

r

FV

PV

m







1

(1

)

n

PV

FV

d





1

(1

)

n m

PV

FV

d

m





