- #1

- 3

- 0

In Marder's Condensed matter physics, it uses matrix operations to explain how to justify two different lattice systems as listed in attachment.

However, I cannot understand why the two groups are equivalent if there exists a single matrix S satisfying S

^{-1}RS

^{-1}+S

^{-1}a=R

^{'}+a

^{'}.

Can someone help me to understand it? Thank you.