Results 111 to 120 of about 219 (161)

Three enumeration formulas of standard young tableaux of truncated shapes

open access: yes, 2019
In this paper we consider the enumeration of three kinds of standard Young tableaux (SYT) of truncated shapes by use of the method of multiple integrals.
Sun, Ping
core  

Compositions of n as alternating sequences of weakly increasing and strictly decreasing partitions

open access: yesOpen Mathematics, 2012
Blecher Aubrey   +2 more
doaj   +1 more source

and

open access: yes, 2010
. A centrosymmetric permutation is one which is invariant under the reversecomplement operation, or equivalently one whose associated standard Young tableaux under the Robinson-Schensted algorithm are both invariant under the Schützenberger involution ...
Matteo Silimbani, Mark F. Flanagan
core  

Ordered Construction Of Combinatorial Objects

open access: yes, 2007
. The generating function method for counting species of combinatorial objects is applied to the construction of the objects in order. The species considered are those described using context-free grammars with additional group-invariant operators.
Mitch Harris, Nachum Dershowitz
core  

Skeletal generalizations of chip-firing games, parking functions, and Dyck paths

open access: yes
For \(0\leq k\leq n-1\), we introduce a family of \(k\)-skeletal paths which are counted by the \(n\)th Catalan number for each \(k\), and specialize to Dyck paths when \(k=n-1\).
Backman, Spencer   +5 more
core   +1 more source

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