Homoon Ryu

activity

20222026

most citedRow graphs of Toeplitz matrices

1 citations · 4 across the 11 of their papers we have counts for

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2 papers · 1 filter

math.CO2026

Connectivity keeping paths in digraphs

Hojin Chu, Boram Park, Homoon Ryu

Mader conjectured that every $k$ -strong digraph $D$ with minimum semidegree $δ^{0} (D) \geq 2 k + m - 1$ contains a dipath $P$ of order $m$ such that $D - V (P)$ remains $k$ -strong. For $k = 1$ ,…

math.CO2026

On 2-connected graphs without cycles of length 1 modulo 3

Yandong Bai, Hojin Chu, Binlong Li +2

Burr and Erdős conjectured in 1976 that for all integers $k > ℓ \geq 0$ such that $k Z + ℓ$ contains an even integer, every $n$ -vertex graph without cycles of length $\ell…