2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/21185Unified geometric approach to describing kinematics of elastic and plastic deformations of continuous media is suggested. On the base of this approach we study mechanical deformations, viscous flow, and heat transport in glassy plastic media. As a result we derive appropriate differential equations for these phenomena in a form applicable to liquids, elastic solids, and to plastic solid materials as well.AmSTeX, 19 pages, amsppt styleMaterials ScienceSoft Condensed Mattertext