Rainbow crow

Crow: The Legend is a re-telling of a Native American folk tale about a bird with the most dazzling plumage and mellifluous voice, who, after the planet turns dark and cold, must journey far from home to bring light and warmth back to the world.

'Toto, something tells me we're not in Kansas anymore.' So says young Dorothy Gale (Judy Garland), opening her farmhouse door in MGM's The Wizard of Oz (1939). Said farmhouse, carried off into the sky by a tornado, has just landed with a jarring thud. ...

This paper studies a variation of domination in graphs called rainbow domination. For a positive integer k, a k-rainbow dominating function of a graph G is a function f from V(G) to the set of all subsets of {1,2,...,k} such that for any vertex v with f(...