, (1.6):
|
d = x2 1 .
4. .
R. (σ - ).
, , -, , D, r (. .6,).
|
, .. r>R. S (. 6, ) D , D q > 0 q < 0. (1.4), D E
|
ε .
= -dφ/dr, :
|
, , .. r= ∞ φ = 0.
(r < R) S* , D = 0, = 0, φ = const. φ , = R φ(r) .
, . (r) φ(r) . 6 (, ).
5.
R, .
.. .
, . (r < R) S*:
|
ε1 .
( > R) S:
|
ε2 ( . 7).
|
φ dφ =-dr. D(r) (r) . 7, , . , , ε1 ≠ ε2, () 7,, D ( 7,).