an:00018961
Zbl 0791.20073
Koganov, L. M.
Remarks concerning the work on M??bius functions and Frobenius constants for a certain class of semigroups
RU
Studies on semigroups, Interuniv. Collect. Sci. Works, Leningrad, 40-45 (1990).
1990
a
20M15 20M05 11A25
[For the entire collection see Zbl 0714.00010.]
The present article contains a supplement to the author's earlier works [in: ``Algebraic systems with one operation and relation'', Interuniv. Collect. Sci. Works, Leningrad 1985, 46-53 (1985; Zbl 0615.10004); ``Semigroups and partial groupoids'', Interuniv. Collect. Sci. Works, Leningrad 1987, 15-25 (1987; Zbl 0675.20053)], in the light of facts, which became known to the author after publication of these works. Knowledge of the second of these articles is necessary for reading the present article.
Zbl 0714.00010; Zbl 0615.10004; Zbl 0675.20053