TY - JOUR A2 - Vagenas, Elias C. AU - Eingorn, Maxim PY - 2014 DA - 2014/12/22 TI - Gurzadyan’s Problem 5 and Improvement of Softenings for Cosmological Simulations Using the PP Method SP - 903642 VL - 2014 AB - This paper is devoted to different modifications of two standard softenings ofthe gravitational attraction (namely, the Plummer and Hernquist softenings), which are commonly used in cosmological simulations based on the particle-particle (PP) method, and theircomparison. It is demonstrated that some of the proposed alternatives lead to almost thesame accuracy as in the case of the pure Newtonian interaction, even despite the fact that theforce resolution is allowed to equal half the minimum interparticle distance. The revealed wayof precision improvement gives an opportunity to succeed in solving Gurzadyan’s Problem 5and bring modern computer codes up to a higher standard. SN - 1687-7357 UR - https://doi.org/10.1155/2014/903642 DO - 10.1155/2014/903642 JF - Advances in High Energy Physics PB - Hindawi Publishing Corporation KW - ER -