On integer-magic spectra of caterpillars
Ebrahim Salehi, Patrick Bennett · Journal of Combinatorial Mathematics and Combinatorial Computing · 2007
For any h 2 IN; a graph G = (V;E) is said to be h-magic if there exists a labeling l : E(G) i! ZZ h i f0g such that the induced vertex set labeling l + : V (G) i! ZZ h deflned by l + (v) = X uv2E(G) l(uv)