Are some N-body algorithms intrinsically less collisional than others? - Hernquist, Lars; Barnes, Joshua E. (The Astrophysical journal, 1990)
Keywords: ALGORITHMS; Astronomy; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DENSITY; Earth, ocean, space; Exact sciences and technology; Fundamental astronomy and astrophysics. Instrumentation, techniques, and astronomical observations; MANY-BODY PROBLEM; MATHEMATICAL LOGIC; MATHEMATICAL MODELS; MOTION; Observation and data reduction techniques. Computer modeling and simulation; PHYSICAL PROPERTIES 640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources; SPHERICAL HARMONICS; STARS; TESTING; Spherical harmonic; N body system; Numerical method; Numerical algorithmics; Direct summation; Hierarchical tree method; Stellar dynamics; Self gravitating system