On a General Theory of Anisotropy of Matter. The Special Decomposition of the Compliance Tensor
A newly developed approach based on the spectral decomposition principle, which is usefull in crystallography , is applied for the first time in this paper. The compliance fourth-rank tensor of crystalline media belonging to the monoclinic system is, thus, spectrally decomposed, its eigenvalues are evaluated, together with the elementary idempotent fourth-rank tensors, which decompose uniquely the fourth-rank tensor space into orthogonal subspaces.