#2262 ⟨
a
,
b
|
ba
=
ab
,
aaa
=
bb
⟩
Up:
Monoid enumeration
Prev:
#2261
⟨
a
,
b
|
ba
=
ab
,
aaa
=
ab
⟩
Next:
#2263
⟨
a
,
b
|
ba
=
ab
,
aab
=
aa
⟩
Contents
Properties
Commutative structure
Staircase diagram
Rewriting system
Properties
Sum of relation sides is 9
Isomorphic to ⟨2, 3⟩ ⊂ ℤ
Infinite cancellative commutative monoid
Element
b
has infinite order
Commutative structure
Gröbner basis: ⟨
a
,
b
|
b
2
=
a
3
⟩
Enveloping group is isomorphic to ℤ
Group of units is isomorphic to ℤ
1
2 Archimedian components:
1,
b
Staircase diagram
Rewriting system
Format:
Pretty
Plain
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:
Leftmost
Rightmost
Result:
1
1
Reduction order:
Left-to-right shortlex with
a
<
b
Certificate
: derivations of all rewriting rules from the defining relations.
#
Rule
Proof
1.
ba
⇒
ab
[1]
2.
a
3
⇒
b
2
[2]
# ab:ba=ab,aaa=bb ab - - ba=ab aaa=bb
