A Symmetric Chain Decomposition of L(4,n).
STANFORD UNIV CALIF DEPT OF COMPUTER SCIENCE
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Lm,n is the set of integer m-tuples a1,...,am with O or a1 ... or am or n, ordered by a or b when ai or bi for all i. R. Stanley conjectured that Lm,N is a symmetric chain order for all m,n. We verify this by construction for M4. Author
- Statistics and Probability