Geodesic
Generalized cardinal properties of lattices and lattice ordered groups
Czechoslovak Mathematical Journal, Tome 54 (2004) no. 4, pp. 1035-1053
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We denote by $K$ the class of all cardinals; put $K^{\prime }= K \cup \lbrace \infty \rbrace $. Let $\mathcal C$ be a class of algebraic systems. A generalized cardinal property $f$ on $\mathcal C$ is defined to be a rule which assings to each $A \in \mathcal C$ an element $f A$ of $K^{\prime }$ such that, whenever $A_1, A_2 \in \mathcal C$ and $A_1 \simeq A_2$, then $f A_1 =f A_2$. In this paper we are interested mainly in the cases when (i) $\mathcal C$ is the class of all bounded lattices $B$ having more than one element, or (ii) $\mathcal C$ is a class of lattice ordered groups.
We denote by $K$ the class of all cardinals; put $K^{\prime }= K \cup \lbrace \infty \rbrace $. Let $\mathcal C$ be a class of algebraic systems. A generalized cardinal property $f$ on $\mathcal C$ is defined to be a rule which assings to each $A \in \mathcal C$ an element $f A$ of $K^{\prime }$ such that, whenever $A_1, A_2 \in \mathcal C$ and $A_1 \simeq A_2$, then $f A_1 =f A_2$. In this paper we are interested mainly in the cases when (i) $\mathcal C$ is the class of all bounded lattices $B$ having more than one element, or (ii) $\mathcal C$ is a class of lattice ordered groups.
Classification : 06B05, 06F15
Keywords: bounded lattice; lattice ordered group; generalized cardinal property; homogeneity 
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Jakubík, Ján. Generalized cardinal properties of lattices and lattice ordered groups. Czechoslovak Mathematical Journal, Tome 54 (2004) no. 4, pp. 1035-1053. http://geodesic.mathdoc.fr/item/CMJ_2004_54_4_a16/

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