Two papers : H-coextensions of monoids and the structure of a band of groups/
Leech, Jonathan.
Two papers : H-coextensions of monoids and the structure of a band of groups/ Jonathan Leech. - Providence, R.I.: American Mathematical Society, 1975. - vii, 95 p.: ill.; 26 cm. - Memoirs of the American Mathematical Society; no. 157. .
Bibliography: p. 95
0821818570
Monoids.
Semigroups;
Group extensions (Mathematics)
Two papers : H-coextensions of monoids and the structure of a band of groups/ Jonathan Leech. - Providence, R.I.: American Mathematical Society, 1975. - vii, 95 p.: ill.; 26 cm. - Memoirs of the American Mathematical Society; no. 157. .
Bibliography: p. 95
0821818570
Monoids.
Semigroups;
Group extensions (Mathematics)