Nonlinear Evolution of the Genus Statistics with Zel'dovich Approximation
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🌌 astro-ph
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genusapproximationdensitydovichevolutioninitialamplitudeapproach
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Evolution of genus density is calculated from Gaussian initial conditions using Zel'dovich approximation. A new approach is introduced which formulates the desired quantity in a rotationally invariant manner. It is shown that normalized genus density does not depend on the initial spectral shape but is a function of the fluctuation amplitude only.
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