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Abstract. We introduce {\it rectangular lattices}, a special type of planar semimodular lattices. We show that every finite distributive lattice can be represented as the congruence lattice of a ``small'' rectangular lattice, improving a 1998 result of G. Grätzer, H. Lakser, and E.$ $T. Schmidt.
AMS Subject Classification
(1991): 06C10; 06B10
Keyword(s):
semimodular lattice,
planar,
congruence,
rectangular
Received October 15, 2007, and in revised form October 30, 2008. (Registered under 6058/2009.)
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