k-
1. k a1, a2, a3, ak,
2. ,
3.
a1, a2, .., ak
( )
, .
: . . , , ? , , , . , .. . , ( - ), .
- .
-
, k .
:
1) k-
2) ,
, m-
, 2 :
1)
2)
- . .
:
rn = 1, a >0
rn = -1, a< 0
, 1 ( ) .
1. xi ri ,
2. yi qi ,
3. n () . , .
, .
:
-. ( , ) . . d (X,Y) :
d 1(X,Y) = 1 rn (X,Y), d 2(X,Y) = 1 ρ n (X,Y),
rn (X,Y) , ρ n (X,Y) .
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