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# ab:aab=a,bbb=1 a/b aaaa=a ab=aaa bbb=1
| 1 | a | b | a2 | ba | b2 | a3 | ba2 | b2a | ba3 | b2a2 | b2a3 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | a | b | a2 | ba | b2 | a3 | ba2 | b2a | ba3 | b2a2 | b2a3 |
| a | a | a2 | a3 | a3 | a | a2 | a | a2 | a3 | a3 | a | a2 |
| b | b | ba | b2 | ba2 | b2a | 1 | ba3 | b2a2 | a | b2a3 | a2 | a3 |
| a2 | a2 | a3 | a | a | a2 | a3 | a2 | a3 | a | a | a2 | a3 |
| ba | ba | ba2 | ba3 | ba3 | ba | ba2 | ba | ba2 | ba3 | ba3 | ba | ba2 |
| b2 | b2 | b2a | 1 | b2a2 | a | b | b2a3 | a2 | ba | a3 | ba2 | ba3 |
| a3 | a3 | a | a2 | a2 | a3 | a | a3 | a | a2 | a2 | a3 | a |
| ba2 | ba2 | ba3 | ba | ba | ba2 | ba3 | ba2 | ba3 | ba | ba | ba2 | ba3 |
| b2a | b2a | b2a2 | b2a3 | b2a3 | b2a | b2a2 | b2a | b2a2 | b2a3 | b2a3 | b2a | b2a2 |
| ba3 | ba3 | ba | ba2 | ba2 | ba3 | ba | ba3 | ba | ba2 | ba2 | ba3 | ba |
| b2a2 | b2a2 | b2a3 | b2a | b2a | b2a2 | b2a3 | b2a2 | b2a3 | b2a | b2a | b2a2 | b2a3 |
| b2a3 | b2a3 | b2a | b2a2 | b2a2 | b2a3 | b2a | b2a3 | b2a | b2a2 | b2a2 | b2a3 | b2a |
| Σ | # | Presentation | Description | Related |
|---|---|---|---|---|
| 8 | 458 | ⟨a, b | aaaa=1, abbb=1⟩ | Isomorphic to ℤ12 | 325 iso |
| 8 | 645 | ⟨a, b | ab=aa, bbb=b⟩ | Finite non-commutative monoid with 12 elements | 1 anti-iso |
| 9 | 1646 | ⟨a, b | aab=bb, aba=a⟩ | Finite non-commutative monoid with 12 elements | 2 iso |
| 9 | 1963 | ⟨a, b | aba=b, aaabb=1⟩ | Finite non-Abelian group with 12 elements | 30 iso |
| 9 | 1998 | ⟨a, b | aaa=a, bbbb=a⟩ | Isomorphic to ℕ(12 = 4) | 6 iso |
| 9 | 2018 | ⟨a, b | aaa=b, bbbb=a⟩ | Isomorphic to ℕ(12 = 1) | 27 iso |
| 9 | 2019 | ⟨a, b | aaa=b, bbbb=b⟩ | Isomorphic to ℕ(12 = 3) | 23 iso |
| 9 | 2259 | ⟨a, b | ab=aa, bbb=bb⟩ | Finite non-commutative monoid with 12 elements | |
| 10 | 5040 | ⟨a, b | aaa=aa, bbbb=a⟩ | Isomorphic to ℕ(12 = 8) | |
| 10 | 5072 | ⟨a, b | aaa=ab, bbbb=a⟩ | Isomorphic to ℕ(12 = 5) | 7 iso |
| 10 | 5092 | ⟨a, b | aaa=bb, bbbb=a⟩ | Isomorphic to ℕ(12 = 2) | 43 iso |
| 10 | 5202 | ⟨a, b | aab=bb, abba=a⟩ | Finite non-commutative monoid with 12 elements | 9 iso, 32 anti-iso |
| 10 | 5330 | ⟨a, b | aaa=ab, bab=bb⟩ | Finite non-commutative monoid with 12 elements | 1 iso |
| 10 | 6597 | ⟨a, b | aaa=b, bbbb=bb⟩ | Isomorphic to ℕ(12 = 6) | 4 iso |
| 10 | 6660 | ⟨a, b | aab=a, bbbb=ba⟩ | Finite non-commutative monoid with 12 elements | 1 anti-iso |
| 10 | 6661 | ⟨a, b | aab=a, bbbb=bb⟩ | Finite non-commutative monoid with 12 elements | 1 anti-iso |
| 10 | 7105 | ⟨a, b | ab=aa, bbaa=bb⟩ | Finite non-commutative monoid with 12 elements | 2 iso |
| 11 | 12897 | ⟨a, b | aab=aaa, baaa=b⟩ | Finite non-commutative monoid with 12 elements | 5 iso |
| 11 | 12910 | ⟨a, b | aab=aaa, bbbb=a⟩ | Isomorphic to ℕ(12 = 9) | 2 iso |
| 11 | 15428 | ⟨a, b | aaa=aa, abbbb=b⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 15996 | ⟨a, b | aaa=ab, aabb=bb⟩ | Finite non-commutative monoid with 12 elements | 2 iso |
| 11 | 16057 | ⟨a, b | aaa=bb, aabb=ab⟩ | Finite non-commutative monoid with 12 elements | 2 iso, 2 anti-iso |
| 11 | 16104 | ⟨a, b | aab=aa, abab=bb⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 16274 | ⟨a, b | aab=bb, aaaa=ab⟩ | Finite non-commutative monoid with 12 elements | 1 iso |
| 11 | 16275 | ⟨a, b | aab=bb, aaaa=ba⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 16448 | ⟨a, b | aba=bb, aabb=aa⟩ | Finite non-commutative monoid with 12 elements | 2 iso |
| 11 | 19773 | ⟨a, b | aba=b, bbbbb=aa⟩ | Finite commutative monoid with 12 elements | |
| 11 | 19917 | ⟨a, b | aaa=b, bbbb=abb⟩ | Isomorphic to ℕ(12 = 7) | 2 iso |
| 11 | 20054 | ⟨a, b | aab=b, aaaa=bba⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 20686 | ⟨a, b | bb=aa, aaaaab=a⟩ | Finite commutative monoid with 12 elements | 15 iso |
| 11 | 20787 | ⟨a, b | ab=aa, baaaa=bb⟩ | Finite non-commutative monoid with 12 elements | 7 iso |
| 11 | 21086 | ⟨a, b | bb=aa, aaaa=aba⟩ | Finite non-commutative monoid with 12 elements | 4 iso |
| 11 | 21092 | ⟨a, b | bb=aa, aaab=aba⟩ | Finite non-commutative monoid with 12 elements | 3 iso |
| 11 | 21112 | ⟨a, b | bb=aa, abab=aba⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 24147 | ⟨a, b | aa=a, abbbbbb=b⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 24991 | ⟨a, b | ab=a, baaaaa=bb⟩ | Finite non-commutative monoid with 12 elements | |
| 11 | 25603 | ⟨a, b | ab=a, bbaaa=bbb⟩ | Finite non-commutative monoid with 12 elements |
23 total
| Σ | # | Presentation | Mapping |
|---|---|---|---|
| 7 | 150 | ⟨a, b | ab=aa, bbb=1⟩ | φ(a) = a, φ(b) = bb |
| 8 | 440 | ⟨a, b | aba=ab, bbb=1⟩ | φ(a) = ba, φ(b) = b |
| 8 | 446 | ⟨a, b | abb=aa, bbb=1⟩ | φ(a) = a, φ(b) = b |
| 9 | 1295 | ⟨a, b | abb=aab, bbb=1⟩ | φ(a) = a, φ(b) = bb |
| 9 | 1299 | ⟨a, b | abb=aba, bbb=1⟩ | φ(a) = a, φ(b) = bb |
| 9 | 2580 | ⟨a, b | aaa=1, abba=ab⟩ | φ(a) = b, φ(b) = a |
| 10 | 7493 | ⟨a, b | aaa=1, aaabba=b⟩ | φ(a) = b, φ(b) = a |
| 10 | 7762 | ⟨a, b | aaa=1, aaaba=bb⟩ | φ(a) = bb, φ(b) = a |
| 10 | 7765 | ⟨a, b | aaa=1, aaabb=ba⟩ | φ(a) = bb, φ(b) = a |
| 10 | 7787 | ⟨a, b | aaa=1, ababa=ab⟩ | φ(a) = bb, φ(b) = a |
| 10 | 8036 | ⟨a, b | aaa=1, aaab=bba⟩ | φ(a) = b, φ(b) = a |
| 10 | 8056 | ⟨a, b | aaa=1, abab=aba⟩ | φ(a) = b, φ(b) = ba |
| 11 | 21669 | ⟨a, b | aaa=1, aaababa=b⟩ | φ(a) = bb, φ(b) = a |
| 11 | 21673 | ⟨a, b | aaa=1, aaabbaa=b⟩ | φ(a) = bb, φ(b) = a |
| 11 | 22210 | ⟨a, b | aaa=1, aaabaa=bb⟩ | φ(a) = b, φ(b) = a |
| 11 | 22213 | ⟨a, b | aaa=1, aaabab=ba⟩ | φ(a) = b, φ(b) = ba |
| 11 | 22255 | ⟨a, b | aaa=1, abaaba=ab⟩ | φ(a) = b, φ(b) = ba |
| 11 | 22739 | ⟨a, b | aaa=1, aaaba=bab⟩ | φ(a) = b, φ(b) = ba |
| 11 | 22746 | ⟨a, b | aaa=1, aaabb=baa⟩ | φ(a) = b, φ(b) = a |
| 11 | 22765 | ⟨a, b | aaa=1, aabba=aab⟩ | φ(a) = b, φ(b) = a |
| 11 | 22782 | ⟨a, b | aaa=1, abaab=aba⟩ | φ(a) = b, φ(b) = a |
| 11 | 23269 | ⟨a, b | aaa=1, aabb=aaba⟩ | φ(a) = bb, φ(b) = a |
| 11 | 23277 | ⟨a, b | aaa=1, abab=abaa⟩ | φ(a) = bb, φ(b) = a |
38 total
| Σ | # | Presentation | Mapping |
|---|---|---|---|
| 8 | 743 | ⟨a, b | aaa=1, aabb=b⟩ | φ(a) = b, φ(b) = aa |
| 8 | 745 | ⟨a, b | aaa=1, abab=b⟩ | φ(a) = b, φ(b) = aa |
| 9 | 1308 | ⟨a, b | bab=aab, bbb=1⟩ | φ(a) = aa, φ(b) = b |
| 9 | 2427 | ⟨a, b | aaa=1, aabab=b⟩ | φ(a) = b, φ(b) = ba |
| 9 | 2433 | ⟨a, b | aaa=1, abaab=b⟩ | φ(a) = b, φ(b) = ba |
| 9 | 2572 | ⟨a, b | aaa=1, aabb=ab⟩ | φ(a) = b, φ(b) = a |
| 9 | 2587 | ⟨a, b | aaa=1, baab=ab⟩ | φ(a) = b, φ(b) = a |
| 10 | 7487 | ⟨a, b | aaa=1, aaaabb=b⟩ | φ(a) = b, φ(b) = a |
| 10 | 7497 | ⟨a, b | aaa=1, aabaab=b⟩ | φ(a) = b, φ(b) = a |
| 10 | 7511 | ⟨a, b | aaa=1, abaaab=b⟩ | φ(a) = b, φ(b) = a |
| 10 | 7758 | ⟨a, b | aaa=1, aaaab=bb⟩ | φ(a) = b, φ(b) = aa |
| 10 | 7764 | ⟨a, b | aaa=1, aaabb=ab⟩ | φ(a) = b, φ(b) = aa |
| 10 | 7771 | ⟨a, b | aaa=1, aabab=ab⟩ | φ(a) = b, φ(b) = aa |
| 10 | 7776 | ⟨a, b | aaa=1, aabba=ba⟩ | φ(a) = b, φ(b) = aa |
| 10 | 7805 | ⟨a, b | aaa=1, baaab=ab⟩ | φ(a) = b, φ(b) = aa |
| 10 | 8033 | ⟨a, b | aaa=1, aaab=abb⟩ | φ(a) = b, φ(b) = a |
| 10 | 8044 | ⟨a, b | aaa=1, aaba=bba⟩ | φ(a) = b, φ(b) = a |
| 10 | 8055 | ⟨a, b | aaa=1, abab=aab⟩ | φ(a) = b, φ(b) = ba |
| 10 | 8077 | ⟨a, b | aaa=1, baab=aab⟩ | φ(a) = b, φ(b) = ba |
| 11 | 21655 | ⟨a, b | aaa=1, aaaaabb=b⟩ | φ(a) = b, φ(b) = aa |
| 11 | 21659 | ⟨a, b | aaa=1, aaaabab=b⟩ | φ(a) = b, φ(b) = aa |
| 11 | 21681 | ⟨a, b | aaa=1, aabaaab=b⟩ | φ(a) = b, φ(b) = aa |
| 11 | 21709 | ⟨a, b | aaa=1, abaaaab=b⟩ | φ(a) = b, φ(b) = aa |
| 11 | 22198 | ⟨a, b | aaa=1, aaaaab=bb⟩ | φ(a) = b, φ(b) = a |
| 11 | 22212 | ⟨a, b | aaa=1, aaabab=ab⟩ | φ(a) = b, φ(b) = ba |
| 11 | 22224 | ⟨a, b | aaa=1, aabaab=ab⟩ | φ(a) = b, φ(b) = ba |
| 11 | 22229 | ⟨a, b | aaa=1, aababa=ba⟩ | φ(a) = b, φ(b) = ba |
| 11 | 22293 | ⟨a, b | aaa=1, baaaab=ab⟩ | φ(a) = b, φ(b) = ba |
| 11 | 22731 | ⟨a, b | aaa=1, aaaab=bab⟩ | φ(a) = b, φ(b) = ba |
| 11 | 22743 | ⟨a, b | aaa=1, aaabb=aab⟩ | φ(a) = b, φ(b) = a |
| 11 | 22766 | ⟨a, b | aaa=1, aabba=aba⟩ | φ(a) = b, φ(b) = a |
| 11 | 22781 | ⟨a, b | aaa=1, abaab=aab⟩ | φ(a) = b, φ(b) = a |
| 11 | 22825 | ⟨a, b | aaa=1, baaab=aab⟩ | φ(a) = b, φ(b) = a |
| 11 | 23268 | ⟨a, b | aaa=1, aabb=aaab⟩ | φ(a) = b, φ(b) = aa |
| 11 | 23274 | ⟨a, b | aaa=1, abab=aaab⟩ | φ(a) = b, φ(b) = aa |
| 11 | 23280 | ⟨a, b | aaa=1, abba=aaba⟩ | φ(a) = b, φ(b) = aa |
| 11 | 23291 | ⟨a, b | aaa=1, baaa=aabb⟩ | φ(a) = b, φ(b) = aa |
| 11 | 23292 | ⟨a, b | aaa=1, baaa=abab⟩ | φ(a) = b, φ(b) = aa |