Graph isomorphisms of partially ordered sets
Mária Tomková (1987)
Mathematica Slovaca
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Mária Tomková (1987)
Mathematica Slovaca
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Oľga Klaučová (1977)
Mathematica Slovaca
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Ján Jakubík (1991)
Mathematica Bohemica
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It is well-known that there exist infinite modular lattices possessing no non-trivial valuations. In this paper a class of modular lattices is defined and it is proved that each lattice belonging to has a nontrivial valuation. Next, a result of . Birkhoff concerning valuations on modular lattices of finite length is generalized.