TY - JOUR ID - Ivančo2016 LB - Ivančo2016 AU - Ivančo, Jaroslav TI - M2-edge colorings of dense graphs ST - M2-edge colorings of dense graphs JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2016 VL - 36 IS - 5 SP - 603 EP - 612 DO - http://dx.doi.org/10.7494/OpMath.2016.36.5.603 UR - http://dx.doi.org/10.7494/OpMath.2016.36.5.603 AB - An edge coloring \(\varphi\) of a graph \(G\) is called an \(\mathrm{M}_i\)-edge coloring if \(|\varphi(v)|\leq i\) for every vertex \(v\) of \(G\), where \(\varphi(v)\) is the set of colors of edges incident with \(v\). Let \(\mathcal{K}_i(G)\) denote the maximum number of colors used in an \(\mathrm{M}_i\)-edge coloring of \(G\). In this paper we establish some bounds of \(\mathcal{K}_2(G)\), present some graphs achieving the bounds and determine exact values of \(\mathcal{K}_2(G)\) for dense graphs. KW - edge coloring KW - dominating set KW - dense graphs SN - 1232-9274 ER -