LATTICE ISOMORPHISMS OF DISTRIBUTIVE INVERSE SEMIGROUPS

1979 ◽  
Vol 30 (3) ◽  
pp. 301-314 ◽  
Author(s):  
P. R. JONES
Keyword(s):  
2014 ◽  
Vol 89 (2) ◽  
pp. 469-474 ◽  
Author(s):  
João Araújo ◽  
Michael Kinyon
Keyword(s):  

1974 ◽  
Vol 8 (1) ◽  
pp. 312-331 ◽  
Author(s):  
Michael Keenan ◽  
Gerard Lallement
Keyword(s):  

2006 ◽  
Vol 72 (3) ◽  
pp. 411-418 ◽  
Author(s):  
A.V. Kelarev

2012 ◽  
Vol 86 (1) ◽  
pp. 92-107
Author(s):  
A. Paula Garrão ◽  
Donald B. McAlister
Keyword(s):  

2016 ◽  
Vol 94 (3) ◽  
pp. 457-463 ◽  
Author(s):  
PETER R. JONES

An algebra has the Howson property if the intersection of any two finitely generated subalgebras is again finitely generated. A simple necessary and sufficient condition is given for the Howson property to hold on an inverse semigroup with finitely many idempotents. In addition, it is shown that any monogenic inverse semigroup has the Howson property.


1988 ◽  
Vol 31 (3) ◽  
pp. 463-467 ◽  
Author(s):  
David Easdown

In any extension theory for semigroups one must determine the basic building blocks and then discover how they fit together to create more complicated semigroups. For example, in group theory the basic building blocks are simple groups. In semigroup theory however there are several natural choices. One that has received considerable attention, particularly since the seminal work on inverse semigroups by Munn ([14, 15]), is the notion of a fundamental semigroup. A semigroup is called fundamental if it cannot be [shrunk] homomorphically without collapsing some of its idempotents (see below for a precise definition).


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