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Greengard and Rokhlin: a fast algorithm for particle simulations

Contribution grade

Numerical and computational mathematics · ALGORITHM

Reference score190,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Presented a hierarchical algorithm evaluating Coulombic or gravitational interactions for N particles with work proportional to N to the stated accuracy, instead of direct quadratic pairwise evaluation.

Scientific scope

The record is the exact 1987 Journal of Computational Physics paper. Earlier multipole expansions, Barnes–Hut, later adaptive fast multipole methods and application-specific implementations remain separate.

Evidence

The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the exact 1987 Journal of Computational Physics paper. Earlier multipole expansions, Barnes–Hut, later adaptive fast multipole methods and application-specific implementations remain separate.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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