Abstract Let H be a graph with the chromatic number h and the chromatic surplus s. A connected graph G of order n is called H-good if R (G, H) = (n - 1) (h - 1) + s. In this paper, we show that P n is ...

Facility layout problems (FLPs) in hospitals are typically to arrange facilities or rooms along both sides of a corridor to minimize some objectives. In a hospital, very often there are center-islands ...

The aim of this paper is to introduce a formulation of linear programming problems involving triangular intuitionistic fuzzy numbers for the objecive coefficient. We propose a new method for solving ...