Abstract
R. Kemp has shown that the average height of r-tuply rooted planted plane trees is
assuming that all such trees withn nodes are equally likely. We give a quite short proof of this result (with an error term ofO (1)).
Zusammenfassung
R. Kemp hat gezeigt, daß die mittlere Höhe von r-fach gewurzelten Bäumen
ist, falls man annimmt, daß alle solchen Bäume mitn Knoten gleich wahrscheinlich sind. Wir geben für dieses Resultat (mit einem Fehler vonO (1)) einen ziemlich kurzen Beweis.
References
De Bruijn, N. G., Knuth, D. E., Rice, S. O.: The average height of planted plane trees, in: Graph theory and computing (Read, R. C., ed.), pp. 15–22. New York-London: Academic Press 1972.
Kemp, R.: The average height of r-tuply rooted planted plane trees. Computing25, 209–232 (1980).
Kirschenhofer, P., Prodinger, H.: On the average height of monotonically labelled binary trees, presented at: 6th Hungarian Colloquium on Combinatorics, Eger, 1981.
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Prodinger, H. A note on a result of R. Kemp on R-typly rooted planted plane trees. Computing 28, 363–366 (1982). https://doi.org/10.1007/BF02279818
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DOI: https://doi.org/10.1007/BF02279818