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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao zbMATH Openarrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
zbMATH Open
Article . 2011
Data sources: zbMATH Open
Integers
Article . 2011 . Peer-reviewed
Data sources: Crossref
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Article . 2020
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On the Tennis Ball Problem

On the tennis ball problem
Authors: John M. Freeman; Tomas Schonbek; Wandi Wei;

On the Tennis Ball Problem

Abstract

AbstractWe generalize the original tennis ball problem to the case in which the number of balls received and the number of balls discarded can vary from move to move, and derive formulas solving the problem in that case. We then use these formulas to obtain new and simpler proofs of the relation between the solution to the original tennis ball problem and the Catalan numbers, as well as a considerably simpler proof for the generalization in which a fixed number

Related Organizations
Keywords

Permutations, words, matrices, Other combinatorial number theory, Catalan numbers, tennis ball problem, Combinatorial identities, bijective combinatorics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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Average
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