# An Adaptive Hierarchical Particle-Mesh Code With Isolated Boundary Conditions

@article{Gelato1997AnAH, title={An Adaptive Hierarchical Particle-Mesh Code With Isolated Boundary Conditions}, author={Sergio Gelato and David F Chernoff and I. Wasserman}, journal={The Astrophysical Journal}, year={1997}, volume={480}, pages={115 - 131} }

This article describes a new, fully adaptive particle-multiple-mesh (PM2) numerical simulation code developed primarily for cosmological applications. The code integrates the equations of motion of a set of particles subject to their mutual gravitational interaction and to an optional, arbitrary external field. The interactions between particles are computed using a hierarchy of nested grids constructed anew at each integration step to enhance the spatial resolution in high-density regions of…

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