Skip to main content

1995 | ReviewPaper | Buchkapitel

Labelled trees and pairs of input-output permutations in priority queues

verfasst von : M. Golin, S. Zaks

Erschienen in: Graph-Theoretic Concepts in Computer Science

Verlag: Springer Berlin Heidelberg

Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.

search-config
loading …

A priority queue can transform a permutation π of a set of size n to some but not necessarily all permutations σ. A recent result of Atkinson and Thiyagarajah [1] states that the number of distinct pairs (π, σ) is (n+1)n−1. Recall that Cayley's Theorem ([2]) states that the number of labelled trees on n+1 nodes is also equal to (n+1)n−1. We present a direct correspondence between these labelled trees and these pairs of permutations and discuss related problems.

Metadaten
Titel
Labelled trees and pairs of input-output permutations in priority queues
verfasst von
M. Golin
S. Zaks
Copyright-Jahr
1995
Verlag
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/3-540-59071-4_55

Neuer Inhalt