Fully-projected subsets
Combinatorics
2017-02-14 v1
Abstract
Let and be natural numbers. Place balls into a multidimensional box of cells, no more than one ball to each cell, such that the projections to each of the coordinate axes have cardinalities , respectively. We generalize earlier work of Wang, Lee, and Tan to find a formula for the alternating sum of the number of these fully-projected subsets.
Cite
@article{arxiv.1702.03472,
title = {Fully-projected subsets},
author = {Jason Gibson},
journal= {arXiv preprint arXiv:1702.03472},
year = {2017}
}
Comments
4 pages