Место издания:"Наука" Казахской ССР Алма-Ата, Казахстан "Наука" Казахской ССР
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Аннотация:Shear instability of gravitating medium (infinit Couette flow) is considered. The critical wave length tqual Jeans' one is found. It is shown that in some situation the short-wave perturbations may be unstable. The drift gravitational instability is possible for long-wave pertubations/