| Up: | Monoids with two generators and two relations |
|---|---|
| Prev: | #948 ⟨a, b | ab=a, bbba=a⟩ |
| Next: | #951 ⟨a, b | ab=a, bbbb=b⟩ |
# ab:ab=a,bbbb=a b/a bbbbb=bbbb a=bbbb
| 1 | b | b2 | b3 | b4 | |
|---|---|---|---|---|---|
| 1 | 1 | b | b2 | b3 | b4 |
| b | b | b2 | b3 | b4 | b4 |
| b2 | b2 | b3 | b4 | b4 | b4 |
| b3 | b3 | b4 | b4 | b4 | b4 |
| b4 | b4 | b4 | b4 | b4 | b4 |
| Σ | # | Presentation | Description | Related |
|---|---|---|---|---|
| 6 | 44 | ⟨a, b | aa=b, abb=1⟩ | Isomorphic to ℤ5 | 1132 iso |
| 7 | 253 | ⟨a, b | aa=b, abb=a⟩ | Isomorphic to ℕ(5 = 1) | 71 iso |
| 7 | 254 | ⟨a, b | aa=b, abb=b⟩ | Isomorphic to ℕ(5 = 2) | 43 iso |
| 7 | 268 | ⟨a, b | ab=a, baa=b⟩ | Finite non-commutative monoid with 5 elements | 63 iso, 23 anti-iso |
| 8 | 574 | ⟨a, b | aaa=b, aab=b⟩ | Isomorphic to ℕ(5 = 3) | 27 iso |
| 8 | 995 | ⟨a, b | ab=a, aaa=bb⟩ | Finite commutative monoid with 5 elements | 19 iso |
| 8 | 1019 | ⟨a, b | ab=a, bba=bb⟩ | Finite non-commutative monoid with 5 elements | 25 iso |
| 8 | 1020 | ⟨a, b | ab=a, bbb=aa⟩ | Finite commutative monoid with 5 elements | 9 iso |
| 8 | 1022 | ⟨a, b | ab=a, bbb=ba⟩ | Finite non-commutative monoid with 5 elements | 4 iso |
| 10 | 8617 | ⟨a, b | aa=a, abbbba=b⟩ | Finite commutative monoid with 5 elements | 3 iso |
| 11 | 15426 | ⟨a, b | aaa=aa, abbba=b⟩ | Finite commutative monoid with 5 elements |
32 total
| Σ | # | Presentation | Mapping |
|---|---|---|---|
| 8 | 985 | ⟨a, b | aa=b, abb=bb⟩ | φ(a) = b, φ(b) = bb |
| 8 | 988 | ⟨a, b | aa=b, bab=bb⟩ | φ(a) = b, φ(b) = bb |
| 9 | 1688 | ⟨a, b | abb=ab, bbb=a⟩ | φ(a) = bbb, φ(b) = b |
| 9 | 1690 | ⟨a, b | abb=ba, bbb=a⟩ | φ(a) = bbb, φ(b) = b |
| 9 | 1696 | ⟨a, b | bab=ab, bbb=a⟩ | φ(a) = bbb, φ(b) = b |
| 9 | 3042 | ⟨a, b | aa=b, aaab=bb⟩ | φ(a) = b, φ(b) = bb |
| 9 | 3046 | ⟨a, b | aa=b, aaba=bb⟩ | φ(a) = b, φ(b) = bb |
| 9 | 3133 | ⟨a, b | ab=a, bbbb=ab⟩ | φ(a) = bbbb, φ(b) = b |
| 9 | 3158 | ⟨a, b | aa=b, abb=aab⟩ | φ(a) = b, φ(b) = bb |
| 9 | 3159 | ⟨a, b | aa=b, abb=aba⟩ | φ(a) = b, φ(b) = bb |
| 9 | 3161 | ⟨a, b | aa=b, baa=abb⟩ | φ(a) = b, φ(b) = bb |
| 9 | 3163 | ⟨a, b | aa=b, bab=aab⟩ | φ(a) = b, φ(b) = bb |
| 9 | 3164 | ⟨a, b | aa=b, bab=aba⟩ | φ(a) = b, φ(b) = bb |
| 10 | 8914 | ⟨a, b | aa=b, aaaaa=bb⟩ | φ(a) = b, φ(b) = bb |
| 10 | 9187 | ⟨a, b | aa=b, aaaa=abb⟩ | φ(a) = b, φ(b) = bb |
| 10 | 9188 | ⟨a, b | aa=b, aaaa=bab⟩ | φ(a) = b, φ(b) = bb |
| 10 | 9191 | ⟨a, b | aa=b, aaab=aab⟩ | φ(a) = b, φ(b) = bb |
| 10 | 9192 | ⟨a, b | aa=b, aaab=aba⟩ | φ(a) = b, φ(b) = bb |
| 10 | 9194 | ⟨a, b | aa=b, aaab=baa⟩ | φ(a) = b, φ(b) = bb |
| 10 | 9199 | ⟨a, b | aa=b, aaba=aab⟩ | φ(a) = b, φ(b) = bb |
| 10 | 9200 | ⟨a, b | aa=b, aaba=aba⟩ | φ(a) = b, φ(b) = bb |
| 10 | 9202 | ⟨a, b | aa=b, aaba=baa⟩ | φ(a) = b, φ(b) = bb |
| 10 | 9379 | ⟨a, b | ab=a, bbbb=abb⟩ | φ(a) = bbbb, φ(b) = b |
| 11 | 14370 | ⟨a, b | aaaa=b, aaaaa=b⟩ | φ(a) = b, φ(b) = bbbb |
| 11 | 19305 | ⟨a, b | aaa=b, aaaaa=ab⟩ | φ(a) = b, φ(b) = bbb |
| 11 | 19849 | ⟨a, b | aaa=b, aaaa=aab⟩ | φ(a) = b, φ(b) = bbb |
| 11 | 19850 | ⟨a, b | aaa=b, aaaa=aba⟩ | φ(a) = b, φ(b) = bbb |
| 11 | 25261 | ⟨a, b | aa=b, aaaaa=aab⟩ | φ(a) = b, φ(b) = bb |
| 11 | 25262 | ⟨a, b | aa=b, aaaaa=aba⟩ | φ(a) = b, φ(b) = bb |
| 11 | 25726 | ⟨a, b | aa=b, aaab=aaaa⟩ | φ(a) = b, φ(b) = bb |
| 11 | 25727 | ⟨a, b | aa=b, aaba=aaaa⟩ | φ(a) = b, φ(b) = bb |
| 11 | 25904 | ⟨a, b | ab=a, bbbb=abbb⟩ | φ(a) = bbbb, φ(b) = b |