20 citations · 22 across the 6 of their papers we have counts for
4 papers · 1 filter
On the signed chromatic number of some classes of graphs
Julien Bensmail, Sandip Das, Soumen Nandi +3
A signed graph is a graph along with a function . A closed walk of a signed graph is positive (resp., negative) if it has an even (resp., odd) num…
Proper connection and proper-walk connection of digraphs
Anna Fiedorowicz, Elżbieta Sidorowicz, Èric Sopena
An arc-colored digraph D is properly (properly-walk) connected if, for any ordered pair of vertices , the digraph contains a directed path (a directed walk) from to…
Exact square coloring of subcubic planar graphs
Florent Foucaud, Hervé Hocquard, Suchismita Mishra +4
We study the exact square chromatic number of subcubic planar graphs. An exact square coloring of a graph G is a vertex-coloring in which any two vertices at distance exactly 2 rec…
Further Evidence Towards the Multiplicative 1-2-3 Conjecture
Julien Bensmail, Hervé Hocquard, Dimitri Lajou +1
The product version of the 1-2-3 Conjecture, introduced by Skowronek-Kazi{ó}w in 2012, states that, a few obvious exceptions apart, all graphs can be 3-edge-labelled so that no two…