Open access
A
M u, v ∈
A∗ϕ:A∗→M
u v ϕ(u)6=ϕ(v)
d
A∗u, v ∈A∗
d(u, v) := 2−r(u,v)
r(u, v) := min{|M| | M u v}
(A∗, d)
A∗
A
c
A∗:= A∗∪ { A∗}.
(c
A∗, d)
ϕ:A∗→M
M
bϕ:
c
A∗→M
(u, v)c
A∗u, v ∈A∗
u, v ∈c
A∗L A∗
u→v v ←u
u∈L⇒v∈L
c
A∗
u, v ∈c
A∗∅
u→v
u∈ ∅ ⇒ v∈ ∅
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
1
/
59
100%
