Analytical Collapsing Solutions to Pressureless Navier-Stokes-Poisson Equations with Density-dependent Viscosity θ=1/2 in R²
classification
🌌 astro-ph
math-phmath.MP
keywords
analyticalcollapsingdensity-dependentequationsnavier-stokes-poissonsolutionsthetaviscosity
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We study the 2-dimensional Navier-Stokes-Poisson equations with density-dependent viscosity $\theta=1/2$ without pressure of gaseous stars in astrophysics. The analytical solutions with collapsing in radial symmetry, are constructed in this paper.
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