On Symmetric Structures of Order Two
نویسندگان
چکیده
Let (ωn)0<n be the sequence known as Integer Sequence A047749 In this paper, we show that the integer ωn enumerates various kinds of symmetric structures of order two. We first consider ternary trees having a reflexive symmetry and we relate all symmetric combinatorial objects by means of bijection. We then generalize the symmetric structures and correspondences to an infinite family of symmetric objects.
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ورودعنوان ژورنال:
- Discrete Mathematics & Theoretical Computer Science
دوره 10 شماره
صفحات -
تاریخ انتشار 2008