A Wronskian (resp. Casoratian) criterion is useful to test linear dependence of elements in a differential (resp. difference) field over constants. We generalize this criterion for invertible hyperexponential elements in a differential-difference ring extension over a field F . The generalization also enables us to connect similarity and F -linear dependence of invertible hyperexponential elements.
/lp/association-for-computing-machinery/testing-linear-dependence-of-hyperexponential-elements-9eWvzkSI8d