#2074 ⟨a, b | aab=b, babb=a⟩

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Contents

  1. Properties
  2. Commutative structure
  3. Finite structure
  4. Staircase diagram
  5. Cayley table
  6. Right Cayley graph
  7. Rewriting system
  8. Same cardinality
  9. Isomorphic instances

Properties

Commutative structure

Finite structure

An idempotent element x satisfies x2 = x.
The index and period of x is the least m (index) and n (period) such that x(m+n) = xm.

Staircase diagram

Cayley table

Idempotents are shown in bold.

1aba2abb2ab2
11aba2abb2ab2
aaa2ababab2b2
bbabb2bab2a2a
a2a2aba2abb2ab2
ababbab2abb2aa2
b2b2ab2a2b2abab
ab2ab2b2aab2a2abb

Right Cayley graph

Idempotents are shown in bold.

Rewriting system

Format:
Word:
Enter a word above to compute its normal form. Tips:
  • Lowercase letters stand for generators.
  • Spaces are ignored.
  • Numbers repeat the previous letter, e.g. b90.
Strategy:
Result: 1 
1
#RuleProof
1. ba ⇒ ab [5]
2. a3 ⇒ a [3]
3. a2b ⇒ b [1]
4. b3 ⇒ a2 [6]
# ab:aab=b,babb=a ab - -
ba=ab
aaa=a
aab=b
bbb=aa

Same cardinality

22 unique, 1203 total

Σ#PresentationPropertiesDescriptionφ
7116⟨a, b | aaa=b, abb=1⟩Grp Com 7ℤ7763
8577⟨a, b | aaa=b, abb=a⟩Noc Com 7ℕ(7 = 1)59
8578⟨a, b | aaa=b, abb=b⟩Noc Com 7ℕ(7 = 3)44
8913⟨a, b | aa=b, abbb=b⟩Noc Com 7ℕ(7 = 2)82
8937⟨a, b | ab=a, baaa=b⟩Noc 766
91593⟨a, b | aaa=ab, baa=b⟩Noc 73
91601⟨a, b | aaa=bb, aab=b⟩Noc Com 75
91620⟨a, b | aab=aa, bbb=a⟩Noc Com 7ℕ(7 = 6)35
91632⟨a, b | aab=ab, bbb=a⟩Noc Com 7ℕ(7 = 4)50
92231⟨a, b | ab=aa, aaa=bb⟩Noc 73
92271⟨a, b | bb=aa, aaa=ab⟩Noc 73
93197⟨a, b | ab=a, bbb=baa⟩Noc 75
104162⟨a, b | abb=aab, bbb=a⟩Noc Com 7ℕ(7 = 5)42
106251⟨a, b | aaa=a, aabba=b⟩Noc 71
108987⟨a, b | ab=a, aaaaa=bb⟩Noc Com 75
109108⟨a, b | ab=a, bbbbb=aa⟩Noc Com 72
109110⟨a, b | ab=a, bbbbb=ba⟩Noc 71
109263⟨a, b | ab=a, aaaa=bbb⟩Noc Com 74
109375⟨a, b | ab=a, bbba=bbb⟩Noc 73
109376⟨a, b | ab=a, bbbb=aaa⟩Noc Com 73
109382⟨a, b | ab=a, bbbb=bba⟩Noc 71
1114843⟨a, b | abba=b, aabab=a⟩Noc 71

Isomorphic instances

The mapping is from the listed presentation's alphabet to the current rewriting system's alphabet.

20 total

Σ#PresentationMapping
92078⟨a, b | aab=b, bbab=a⟩φ(a) = a, φ(b) = b
92116⟨a, b | aba=b, abbb=a⟩φ(a) = a, φ(b) = b
92120⟨a, b | aba=b, babb=a⟩φ(a) = a, φ(b) = b
1118982⟨a, b | aab=b, aababb=a⟩φ(a) = a, φ(b) = b
1118986⟨a, b | aab=b, aabbab=a⟩φ(a) = a, φ(b) = b
1119002⟨a, b | aab=b, ababab=a⟩φ(a) = a, φ(b) = b
1119030⟨a, b | aab=b, baaabb=a⟩φ(a) = a, φ(b) = b
1119034⟨a, b | aab=b, baabab=a⟩φ(a) = a, φ(b) = b
1119042⟨a, b | aab=b, babaab=a⟩φ(a) = a, φ(b) = b
1119058⟨a, b | aab=b, bbaaab=a⟩φ(a) = a, φ(b) = b
1119174⟨a, b | aba=b, aaabbb=a⟩φ(a) = a, φ(b) = b
1119180⟨a, b | aba=b, aababb=a⟩φ(a) = a, φ(b) = b
1119184⟨a, b | aba=b, aabbab=a⟩φ(a) = a, φ(b) = b
1119186⟨a, b | aba=b, aabbba=a⟩φ(a) = a, φ(b) = b
1119194⟨a, b | aba=b, abaabb=a⟩φ(a) = a, φ(b) = b
1119196⟨a, b | aba=b, ababab=a⟩φ(a) = a, φ(b) = b
1119198⟨a, b | aba=b, ababba=a⟩φ(a) = a, φ(b) = b
1119202⟨a, b | aba=b, abbaab=a⟩φ(a) = a, φ(b) = b
1119214⟨a, b | aba=b, baaabb=a⟩φ(a) = a, φ(b) = b
1119216⟨a, b | aba=b, baabab=a⟩φ(a) = a, φ(b) = b