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Non-extendability of semilattice-valued measures on partially ordered sets
For a distributive join-semilattice S with zero, a S-valued poset measure on a poset P is a map m:PxP->S such that m(x,z) <= m(x,y)vm(y,z), and x <= y implies that m(x,y)=0, for all x,y,z in P. In relation with congruence lattice representation problems, we consider the problem whether such...
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Lenguaje: | eng |
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2005
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Acceso en línea: | http://cds.cern.ch/record/903521 |