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.




36) , .

, . . , , , ; , .

. , , , .

, AD , AS .

37) AS .

AS :

  • ;
  • ;
  • .

AS . , AS , , .. AS.

, AS AD. AD (. 2.2) .

AS

AS , . AD , , .

AS , , , .

AS , . .

AS.
I ; II ; III .

 

38) . , . , , , .

, .

:

: ΔC ; Δ ; MpC .

:

ΔS ; Δ ; MPS .

-

:

I. .12 Yp , , : (0 S0), (0 I0) (. (S,I)0 . 12), .

:

II. , , ( ) , Y1 , : Y1 > Yp, (0 S1) > (0 I1).

, , () , (Y = Y1 - Yp). , , , , . , , , , , . , ( Y = Yp, S = I = (0 SI0).

III II-: Y2 < Yp, (0 S2) < (0 J2)

, , , , . , , ( ) , . ( ).

39) - , , , .

:

1. , .

2. () , - .

3. , .

4. , , .

5. ( ) .

, , ; . . ( ), 1 ( , , ), 2 ( , , ), 3 ( , , ), L ( , , , ).

40) , - . , - . , . .

. , . , , . .

, .

41) . , , . . , , .

(-) , - . , : , .

42) , , () .

, , , , , . , , . ,

. . ,

.

, - (Y). (t), , , (q): . ,

, :





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