Oriented Hamiltonian paths in digraphs with arbitrary chromatic number. - Ayman El Zein (Discret. Appl. Math., 2025)

The king degree and the second out-degree of tournaments. - Aya Alhussein; Ayman El Zein (Discret. Math., 2025)

Corrigendum to "The king degree and the second out-degree of tournaments" [Discrete Math. 348 (9) (2025) 114497]. - Aya Alhussein; Ayman El Zein (Discret. Math., 2025)

Oriented Hamiltonian paths in tournaments with an arc removed. - Ayman El Zein (Discret. Math., 2025)

Non-Hamiltonian Cycles in Tournaments. - Ayman El Zein (J. Graph Theory, 2025)

About kings and dominating sets in tournaments. - Ayman El Zein (Australas. J Comb., 2025)

A Note on Sullivan's Second Neighborhood Conjecture. - Ayman El Zein (Graphs Comb., 2025)

Isolation of Connected Graphs in Terms of Size. - Ayman El Zein; Manar Shreif (Graphs Comb., 2025)

On the ( 1 , 1 , 2 , 3 ) -packing coloring of some subcubic graphs. - Maidoun Mortada; Ayman El Zein (Discret. Appl. Math., 2026)

A short proof that every claw-free cubic graph is ( 1 , 1 , 2 , 2 ) -packing colorable. - Maidoun Mortada; Ayman El Zein (Discret. Appl. Math., 2026)