In the paper inverseπ-extensions of the semigroupZ+are studied. It is shownthatπ-extension of the semigroupZ+is inverse, if and only if itsπ-extension coincideswithπ(Z+). The existence of a non-inverseπ-extension for any abelian semigroup isproved.
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Mathematics
, 2025, Issue 1, pp. 1–10
ISSN Online: 0000-0000
DOI:
10.xxxx/example-doi