Abstract
The evolution of compensated aspherical perturbations in an Einstein-de Sitter universe with cold collisionless matter is investigated using both N-body simulations and quasi-analytic similarity solutions to treat the evolution of compensated axisymmetric structures. The solutions consist of a central void surrounded by an inhomogeneous shell. It is assumed that the structures are much smaller than the horizon scale so that Newtonian gravity is a good approximation. The results obtained from the two approaches are compared, and the implications are discussed. 12 refs.
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