César Hernández-Cruz

activity

20122025

most citedOn the existence and number of

(k + 1)

-kings in

k

-quasi-transitive digraphs

14 citations · 19 across the 14 of their papers we have counts for

collaborators

Showing 2016Show all

2 papers · 1 filter

math.CO2016

On the existence of $3$ - and $4$ -kernels in digraphs

Sebastián González Hermosillo de la Maza, César Hernández-Cruz

Let $D = (V (D), A (D))$ be a digraph. A subset $S \subseteq V (D)$ is $k$ -independent if the distance between every pair of vertices of $S$ is at least $k$ , and it is $ℓ$ -absorben…

math.CO2016

A dichotomy for the kernel by $H$ -walks problem in digraphs

Hortensia Galeana-Sánchez, César Hernández-Cruz

Let $H = (V_{H}, A_{H})$ be a digraph which may contain loops, and let $D = (V_{D}, A_{D})$ be a loopless digraph with a coloring of its arcs $c : A_{D} \to V_{H}$ . An $H$ -walk of $D$ is a walk…

On the existence of 3- and 4-kernels in digraphs

A dichotomy for the kernel by H-walks problem in digraphs

On the existence of $3$ - and $4$ -kernels in digraphs

A dichotomy for the kernel by $H$ -walks problem in digraphs