title: Periodic graph
text: # Periodic graph
  
  Periodic graph may refer to:
  
  * Periodic graph (crystallography) or crystal net, a Euclidean graph representing the atomic or molecular structure of a crystal
  * Periodic graph (geometry), a Euclidean graph preserved under a lattice of translations
  * Periodic graph (graph theory), a graph that is periodic with respect to a graph theoretic operator
  