Reconstructing permutations from cycle minors
The electronic journal of combinatorics, Tome 16 (2009) no. 1
The $i$th cycle minor of a permutation $p$ of the set $\{1,2,\ldots,n\}$ is the permutation formed by deleting an entry $i$ from the decomposition of $p$ into disjoint cycles and reducing each remaining entry larger than $i$ by $1$. In this paper, we show that any permutation of $\{1,2,\ldots,n\}$ can be reconstructed from its set of cycle minors if and only if $n\ge 6$. We then use this to provide an alternate proof of a known result on a related reconstruction problem.
@article{10_37236_108,
author = {Maria Monks},
title = {Reconstructing permutations from cycle minors},
journal = {The electronic journal of combinatorics},
year = {2009},
volume = {16},
number = {1},
doi = {10.37236/108},
zbl = {1178.05001},
url = {http://geodesic.mathdoc.fr/articles/10.37236/108/}
}
Maria Monks. Reconstructing permutations from cycle minors. The electronic journal of combinatorics, Tome 16 (2009) no. 1. doi: 10.37236/108
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