Planar Graphs of Odd-Girth at Least 9 are Homomorphic to the Petersen Graph

Zdenek Dvorak, Riste Skrekovski, T. Valla. Planar Graphs of Odd-Girth at Least 9 are Homomorphic to the Petersen Graph. SIAM J. Discrete Math., 22(2):568-591, 2008. [doi]

Abstract

Abstract is missing.