The development of Rayleigh-Taylor instability in a shell of an incompressible fluid in presence of ablation

We introduce the model of growth of the small perturbations on the boundaries of an incompressible fluid shell with accounting for the ablation effect(1-5). Basing on this model we consider the following problems: Behavior of perturbations at "thin" and "thick" shell; Development of perturbations at the outer (unstable) boundary for different regimes of outer pressure; a Development of RTI at a corresponding unstable boundary in cases of the shell compression and expansion, for the work of external forces is equal for both cases; The effect of ablation on the RTI development process.