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A digraph D is called a kernel-perfect digraph or KP-digraph when every induced subdigraph of D has a kernel.We call the digraph D an m-coloured digraph if the arcs of D are coloured with m distinct colours. A path P is monochromatic in D if all of its arcs are coloured alike in D. The closure of D, denoted by ζ(D), is the m-coloured digraph defined as follows:V( ζ(D)) = V(D), andA( ζ(D)) = ∪_{i}...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.