More Patterns in Trees: Up and Down, Young and Old, Odd and Even
نویسندگان
چکیده
We apply the tree-pattern enumeration formulæ of [7], and a new extension thereof, to some recent enumerations of distributions of leaves in ordered trees [4] and in bicolored ordered trees [5], and of distributions of certain subpaths in Dyck lattice paths [22]. the bridge guard’s bucket upside-down to dry. . . fresh leaves —Issa (1818)
منابع مشابه
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ورودعنوان ژورنال:
- SIAM J. Discrete Math.
دوره 23 شماره
صفحات -
تاریخ انتشار 2009