. ( ) ( ) . , . , . , .
, , , , . , .
, , , , . , , , . , , . ( ), , . ( ), .
:
, , .
, .
, . , .
, , m k . k k . k . , 0, - 1. .
, , . . n=(m+k+1) . ,
|
|
2k>=(m+k+1) | (1) |
m n :
n | 8...15 | 16...31 | 32...63 | |||||
m | 4...11 | 11...26 | 26...57 | |||||
k |
, k . , . 1, , . 1, 3, 5, 7, 9,... ( 1). - 2, 3, 6, 7, 10...
N | |
1, 3, 5,7, 9, 11, 13, 15,... | |
2, 3, 6, 7, 10, 11, 14, 15, 18, 19, 22, 23,... | |
4, 5, 6, 7, 12, 13, 14, 15, 20, 21, 22, 23 | |
8, 9, 10, 11, 12, 13, 14, 15, 24,... | |
... | ... |
1,2,4,8,..., .
:
1 k1 | 2 k2 | 3 m1 | 4 k3 | 5 m2 | 6 m3 | 7 m4 | |
, n=7, m=4, k=3 1, 2, 4.
, , 5 - 0100101(2). 0110101. : 0011. , , (3).
. , . .
, , , .
P(x) = q(x) (xc+1), q(x) t, m; , m . q(x) m, m , (xm+1) q(x) . t , , q(x) t, m = 2t-1
|
|
, q(x) = x3+x2+1 (t=3), m = 2t 1 = 7 c , , .. 15, 16, 17, 18, 19, 20, 22, 23 ..
c m ..
n = (c, m)
k= n- c t
, . b l >= b , c>=b+l-1 t>=b.
, , t, (+1), , r = c + t.
, , .
, tu , n=qm-1 GF(q), .
- GF(qm).
f1(x),f2(x)...- g(x).
(. 8 ), .
n tu :
- n=2m-1 m, g(x); - j=2tu-1 , g(x).
- , g(x) m j. , m, 1 j, g(x).
g(x) , .
, 1, 3 ..