Kengo Enami

activity

20182026

most citedEmbeddings of 3-connected 3-regular planar graphs on surfaces of non-negative Euler characteristic

2 citations · 2 across the 4 of their papers we have counts for

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2 papers · 1 filter

math.CO2026

Cayley graphs of abelian groups, circular colorings and discrete fundamental groups

Kengo Enami, Takahiro Matsushita

For each integer $k \geq 2$ , we prove that an abelian group $Γ$ satisfies $exp (Γ) \in {1, \dots, k} \cup {2, 4, \dots, 2 k}$ if and only if it admits no non-bipartite Cayley graph wh…

math.CO2026

Non-uniqueness of optimal $1$ -embeddings on surfaces up to weak equivalence

Kengo Enami

We study the uniqueness of optimal $1$ -embeddings on closed surfaces up to weak equivalence. Answering a question of Suzuki in the negative, we show that for every closed surface o…

Cayley graphs of abelian groups, circular colorings and discrete fundamental groups

Non-uniqueness of optimal 1-embeddings on surfaces up to weak equivalence

Non-uniqueness of optimal $1$ -embeddings on surfaces up to weak equivalence