In Table , we list the lattice parameters, specifically the lattice constants a, b, c, and the interaxial angles α, β, γ, all obtained after atomic relaxation for the ten polymorphs under consideration. For the α-, β-, δ-, and κ-structures of Ga 2 O 3 , the lattice parameters show good agreement with a previous study that employed the same exchange-correlation functional, with deviations being practically negligible. A comparison with results from other calculations also reveals excellent agreement with all polymorphs for both In 2 O 3 and Ga 2 O 3 oxides, with minor discrepancies likely attributable to the overbinding tendency associated with the local density approximation (LDA). The atomic coordinates, A comprehensive discussion of these structures is available in several studies, among others. Atoms are represented as red (O), green (Ga), or violet (In) dots.