# Ising model

by matematikuvol
Tags: ising, model
 P: 192 One line between (+-). Two lines between (++). Zero line between (--). $$\gamma$$ number of nearest neighbours. Why we have relation $$\gamma N_+=2N_{++}+N_{+-}$$ Why we get this? Some explanation. This is from Kerson Huang. Attached Thumbnails