Properties of Graded Posets Preserved by Some Operations

  • Sergej Bezrukov
  • Konrad Engel
Part of the Algorithms and Combinatorics book series (AC, volume 14)


We answer the following question: Let P and Q be graded posets having some property and let ∘ be some posets operation. Is it true that PQ has also this property? The considered properties are: being Sperner, a symmetric chain order, Peck, LYM, and rank compressed. The studied operations are: direct product, direct sum, ordinal sum, ordinal product, rankwise direct product, and exponentiation.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Sergej Bezrukov
    • 1
  • Konrad Engel
    • 2
  1. 1.Department of Math. & CSUniversity of PaderbornPaderbornGermany
  2. 2.Department of Math.University of RostockRostockGermany

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