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JOURNALS
// Matematicheskie Zametki
// Archive
Mat. Zametki,
1972
Volume 11,
Issue 4,
Pages
463–470
(Mi mzm9811)
Hall varieites of semigroups
L. A. Skornyakov
M. V. Lomonosov Moscow State University
Abstract:
We describe varieties
$\mathfrak{B}$
of semigroups such that every retract of a semigroup which is free in
$\mathfrak{B}$
is either one-element or free in
$\mathfrak{B}$
.
UDC:
519.4
Received:
11.05.1971
Fulltext:
PDF file (785 kB)
English version:
Mathematical Notes, 1972,
11
:4,
281–285
Bibliographic databases:
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Steklov Math. Inst. of RAS
, 2025