 About 30,900 results  books.google.com The material in this volume was presented in a secondyear graduate course at Tulane University, during the academic year 19581959. 

 books.google.com Linearly. Ordered. Semigroups: Historical. Origins. and. A. H. Clifford's. Influence.
K. H. Hofmann and J. D. Lawson Abstract In this paper we sketch the earlier
chapters in the history of the mathematical development of the theory of linearly ... 

 books.google.com Homomorphisms; fundamental inverse semigroups Let S be an inverse
semigroup, let T be a semigroup and let 9: S + T ... Clifford semigroups An
inverse semigroup S is called a Cliffbrd semigroup if and only if every idempotent
of S is central. 

 books.google.com 
 books.google.com D Lemma 15.9 ([61]) A semigroup S is regular and satisfies a permutation identity
sis2 ...sn = а<т(1)s<т(2) . . . з„(n) for some a £ Sn (n > 2) with cr(1) ^ 1, a(n) ф n if
and only if S is a commutative Clifford semigroup. Proof. Let 5 be a regular ... 

 books.google.com AMS 1980 Subject Classification: 53A35 CLIFFORD SEMIGROUP, completely
regular semigroup  A semigroup in which every element is a group element,
that is, lies in some subgroup. An element of a semigroup is a group element if
and ... 

 books.google.com Even the reassembly of a commutative semigroup from its archimedean
components seems quite difficult, and has been solved only in highly particular
cases: when the archimedean components are groups (Clifford [1941]),
cancellative ... 

 books.google.com This paper investigates ringtheoretic properties of a Noetherian domain that
reflect reciprocally in the Clifford or Boolean property of its tclass semigroup.
Keywords. Class semigroup, tclass semigroup, tideal, tclosure, Clifford
semigroup, ... 

 books.google.com We now have the following; it tells us, in a general way, how to construct inverse
semigroups from Clifford semigroups and fuundamental semigroups. Theorem 7
Every inverse semigroup can be embedded in a \semidirect product of a Clifford
... 

 books.google.com of the term 'nonsingular', he defined a finite simple or 0simple semigroup to be c
nonsingular if it is isomorphic to a Rees matrix ... a group: it necessarily
coincides with its own structure group (see Clifford and Preston 1961, Corollary
5.24). 

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