A Determinant of Stirling Cycle Numbers Counts Unlabeled Acyclic Single-Source Automata
We show that a determinant of Stirling cycle numbers counts unlabeled acyclic single-source automata. The proof involves a bijection from these automata to certain marked lattice paths and a sign-reversing involution to evaluate the determinant. We also give a formula for the number of acyclic...
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Format: | Article |
Language: | English |
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Discrete Mathematics & Theoretical Computer Science
2008-04-01
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Series: | Discrete Mathematics & Theoretical Computer Science |
Online Access: | http://www.dmtcs.org/dmtcs-ojs/index.php/dmtcs/article/view/657 |