A note on planar semimodular lattices

• Autores: George Grätzer, E. Knapp
• Localización: Algebra universalis, ISSN 0002-5240, Vol. 58, Nº. 4, 2008, págs. 497-499
• Idioma: inglés
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• Resumen

  • In an earlier paper, we constructed all finite, planar, semimodular lattices in three simple steps from the direct product of two finite chains. In this note we prove that one of the three steps can be eliminated.