đ˘âconstructibility of planar graphs
Christina M. Mynhardt, Izak Broere ¡ Journal of Graph Theory ¡ 1980
Abstract In this paper, the concept of the đ˘âconstructibility of graphs is introduced and investigated with particular reference to planar graphs. It is conjectured that the planar graphs are minimally Nâconstructible, where N is a finite set of graphs and an infinite set đ˘ is obtained such that the planar graphs are also minimally đ˘âconstructible. Finally, some properties of the set of all Nâconstructible graphs are discussed and compared with the corresponding properties of planar graphs.