SARAh – Invariant Polynomial Analysis

This is an extended version of the main SARAh web page that  also calculates the polynomial invariants up to order 6 (please look in Table 10). The calculations follow the methodology of Yu.A. Izyumov and  V.N. Syromyatnikov, Phase Transitions and Crystal Symmetry (Kluwer Academic Publishers, Dordrecht) 1990. Chapter 4.

I am still working out how best to work with the results, so this is an alpha version that is actively being worked on.

One piece of advice – when you click evaluate, it will look like nothing is happening for a few seconds.

-Andrew (Oct 2023)