Weak direct factors of lattices
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Judita Lihová (2006)
Mathematica Slovaca
Sándor Radelecki (2002)
Mathematica Slovaca
Ivan Chajda (1985)
Mathematica Slovaca
Atossa Parsapour, Khadijeh Ahmad Javaheri (2018)
Czechoslovak Mathematical Journal
Let be a finite lattice with a least element 0. is an annihilating-ideal graph of in which the vertex set is the set of all nontrivial ideals of , and two distinct vertices and are adjacent if and only if . We completely characterize all finite lattices whose line graph associated to an annihilating-ideal graph, denoted by , is a planar or projective graph.
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