Hiroshi Nozaki

collaborators

2 papers

math.CO2026

Pseudo-Euclidean representations of switching classes of Johnson and Hamming graphs with minimal dimension

Hiroshi Nozaki, Masashi Shinohara, Sho Suda

This paper considers minimum-dimensional representations of graphs in pseudo-Euclidean spaces, where adjacency and non-adjacency relations are reflected in fixed scalar square valu…

math.CO2025

Euclidean sets with only one distance modulo a prime ideal

Hiroshi Nozaki

Let $X$ be a finite set in the Euclidean space $R^{d}$ . If the squared distance between any two distinct points in $X$ is an odd integer, then the cardinality of $X$ is boun…