There exists no distance-regular graph with intersection array {56,36,9;1,3,48}
Combinatorics
2010-11-23 v1
Abstract
We prove that a distance-regular graph with intersection array {56,36,9;1,3,48} does not exist. This intersection array is from the table of feasible parameters for distance-regular graphs in "Distance-regular graphs"\ by A.E. Brouwer, A.M. Cohen, A. Neumaier.
Cite
@article{arxiv.1011.4581,
title = {There exists no distance-regular graph with intersection array {56,36,9;1,3,48}},
author = {Alexander L. Gavrilyuk},
journal= {arXiv preprint arXiv:1011.4581},
year = {2010}
}