G.R. Vijayakumar

Arithmetic labelings and geometric labelings of countable graphs

H. Galeana-Sánchez, R. Rojas-Monroy, B. Zavala

Monochromatic paths and monochromatic sets of arcs in quasi-transitive digraphs

I. Gorgol, E. Łazuka

Rainbow numbers for small stars with one edge added

M.A. Henning, Ch. Löwenstein, D. Rautenbach

Partitioning a graph into a dominating set, a total dominating set, and something else

R. Hammack, K.E. Toman

Cancellation of direct products of digraphs

D. Auger, I. Charon, O. Hudry, A. Lobstein

On the existence of a cycle of length at least 7 in a $(1,\le 2)$-twin-free graph

O. Favaron, H. Karami, R. Khoeilar, S.M. Sheikholeslami

Matchings and total domination subdivision number in graphs with few induced 4-cycles

G. Agnarsson, M.M. Halldórsson

Vertex coloring the square of outerplanar graphs of low degree

E.T. Baskoro, T. Vetrik, L. Yulianti

On Ramsey $(K_{1,2},C_{4})$-minimal graphs

T.A. McKee

Clique graph representations of ptolemaic graphs

A. Dudek, A. Żak

On vertex stability with regard to complete bipartite subgraphs

M. Changat, J. Mathews, P.G. Narasimha-Shenoi, I. Peterin

$n$-ary transit functions in graphs

A.P. Santhakumaran, S.V. Ullas Chandran

The geodetic number of strong product graphs

M. Bojarska

A note on Hamiltonian cycles in generalized Halin graphs

G. Mazzuoccolo

The NP-completeness of authomorphic colorings