. , . , . , , , , (0, 2π). . .. . l nΛi s i(t), (5.23). (4.44), γ , θ - , l nΛi ( (5.23) Δt→0) :
. (5.67)
l nΛi , θ. , Λi . , (5.67) θ Ei ui(t) ( ).
. . . . . .
i(a):
1. i(a) , .. a1, a 2 , .. i (a1, a 2) = i( a1 ) + i( a2 )
2. , ( () = 1), .
3. , ..i(a) =f{P(a)).
4. ().
, , , i(a)= -logP(a)≥0.
. , , , , , i (an), . , (), , .. () =
(X|Y):
(X|Y)=
:
1. H(X|Y)≥0
2. , ..
P(x| y)=
H(X|Y)=0
3.H(X|Y) ≤(X)
4.H(X|Y) =H(X), , , P (x | y) =()