Embedding Semigroups in Groups: a Geometrical Approach
Publications de l'Institut Mathématique, _N_S_38 (1985) no. 52, p. 69
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A way to visualize Mal'cev quasi-identities is presented.
As a consequence an analogy, expressed in a geometric language, is found
between Mal'cev and Lambek quasi-identities. These are known to be of a
special form which is called stable here; it is proved that certain
geometrically characterized sets of stable quasi-identities axiomatize the
class of embeddable semigroups. The results of Mal'cev and Lambek are
obtained as corollaries. The method of diagrams, borrowed from group theory,
enabled us to give a unified treatment which seems to be conceptually
simpler than those previously employed.
Classification :
20M10 20F32
@article{PIM_1985_N_S_38_52_a11,
author = {Sava Krsti\'c},
title = {Embedding {Semigroups} in {Groups:} a {Geometrical} {Approach}},
journal = {Publications de l'Institut Math\'ematique},
pages = {69 },
publisher = {mathdoc},
volume = {_N_S_38},
number = {52},
year = {1985},
language = {en},
url = {http://geodesic.mathdoc.fr/item/PIM_1985_N_S_38_52_a11/}
}
Sava Krstić. Embedding Semigroups in Groups: a Geometrical Approach. Publications de l'Institut Mathématique, _N_S_38 (1985) no. 52, p. 69 . http://geodesic.mathdoc.fr/item/PIM_1985_N_S_38_52_a11/