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| -rw-r--r-- | main.tex | 2 | 
1 files changed, 1 insertions, 1 deletions
@@ -216,7 +216,7 @@ components present in \eqref{eq:strain-components}, this rules out all of the  If the \op\ transforms like $\Aog$ (e.g. a fluctuation in valence number), odd  terms are allowed in its free energy and any transition will be first order and  not continuous without fine-tuning. Since the \ho\ phase transition is -second-order \brad{cite something}, we will henceforth rule out $\Aog$ \op s as +second-order \cite{de_visser_thermal_1986}, we will henceforth rule out $\Aog$ \op s as  well.  For the \op\ representation $\X$ as any of $\Bog$, $\Btg$, or $\Eg$, the  most general quadratic free energy density is  \begin{equation}  | 
