Are you sure the saving needs complex values? I think their algorithm works over any char 0 field. Probably needs to just divide by some divisor of 4!=24 if I had to guess.
Their decomposition of the (4,4,4) matrix multiplication tensor is explicitly listed in their Colab notebook, and it contains complex numbers.
Their decomposition of the (4,4,4) matrix multiplication tensor is explicitly listed in their Colab notebook, and it contains complex numbers.