This is a review of some developments in the analysis of the vibration spectrum of crystal lattices with particular emphasis on the observation that the frequency distribution function is expected to have singularities.
Ito ay isang pagrepaso ng ilang mga developments sa pagtatasa ng panginginig ng boses spectrum ng kristal lattices na may partikular na diin sa mga bagay na napuna na ang dalas distribution function ay inaasahan na may singularities.