Bipartite Ferrers-graphs and planar concept lattices
ICFCA'07 Proceedings of the 5th international conference on Formal concept analysis
The number of plane diagrams of a lattice
ICFCA'08 Proceedings of the 6th international conference on Formal concept analysis
Characterizing planar lattices using left-relations
ICFCA'06 Proceedings of the 4th international conference on Formal Concept Analysis
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Popular lattice drawing algorithms do not take planarity into account and find plane diagrams mainly heuristically. We present a characterization of planar lattices based on a theorem of Dushnik and Miller [4] and the “left”-relation introduced by Kelly and Rival [6]. In particular, our work is helpful for drawing plane attribute additive diagrams.