Sho Suda

collaborators

3 papers

math.CO2025

Three-dimensional symmetric designs of propriety 3

Amin Bahmanian, Vedran Krčadinac, Lucija Relić +1

We define symmetric designs of dimension $n$ and propriety $d$ , providing a unifying generalization of several classes of higher-dimensional symmetric designs previously studied. W…

math.CO2025

Existence and nonexistence of spherical $5$ -designs of minimal type

Sho Suda, Zili Xu, Wei-Hsuan Yu

This paper investigates the existence and properties of spherical $5$ -designs of minimal type. We focus on two cases: tight spherical $5$ -designs and antipodal spherical $4$ -distan…

math.CO2025

Codes with symmetric distances

Gábor Hegedüs, Sho Suda, Ziqing Xiang

For a code $C$ in a space with maximal distance $n$ , we say that $C$ has symmetric distances if its distance set $S (C)$ is symmetric with respect to $n /2$ . In this paper, we prov…

Three-dimensional symmetric designs of propriety 3

Existence and nonexistence of spherical 5-designs of minimal type

Codes with symmetric distances

Existence and nonexistence of spherical $5$ -designs of minimal type