Методы математической физики - 101 стр.

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OM
1
OP
=
OP
OM
0
,
ρ
1
R
0
=
R
0
ρ
0
.
r
0
= P M
0
, r
1
= P M
1
r
0
r
1
=
R
0
ρ
1
=
ρ
0
R
0
= const P ,
1
r
0
R
0
ρ
0
1
r
1
= 0 P .
w =
1
4π
R
0
ρ
0
1
r
1
,
r
1
M
1
M w
w = 0
M = P
w
(R
0
0
) M
1
G(M, M
0
) =
1
4π
µ
1
r
0
R
0
ρ
0
1
r
1
,
r
0
r
1
M
0
M
1
M
M
0
1/(4πr
0
)
G(P, M
0
) = 0
u
¯
¯
S
= f
u(M
0
) =
I
S
f
G
n
dS .