Abstract
A pair of involution semigroups sharing a common semigroup reduct of order eight is constructed with the property that the varieties they generate bound an interval that contains an uncountable chain. Consequently, there exist uncountably many non-finitely generated varieties of involution semigroups sharing a common semigroup variety reduct that is finitely generated.
| Original language | American English |
|---|---|
| Pages (from-to) | 163–169 |
| Number of pages | 7 |
| Journal | Publicacions Matemàtiques |
| Volume | 69 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2025 |