The evolution of thermomagnetic perturbations in the resistive state of sup
erconductors is considered. A qualitative pattern of the formation and furt
her development of nonlinear stationary structures that describe the final
stage of thermal and electromagnetic perturbations in a superconductor is i
nvestigated. The wave propagation velocity and the wave front width in a su
perconductor are estimated. (C) 2001 MAIK "Nauka/Interperiodica".