Communications in Mathematical Sciences
Volume 15 (2017)
Approximate linear relations for Bessel functions
Pages: 1967 – 1986
In this study, we reveal an approximate linear relation for Bessel functions of the first kind, based on asymptotic analyses. A set of coefficients are calculated from a linear algebraic system. For any given error tolerance, a Bessel function of an order big enough is approximated by a linear combination of those with neighboring orders using these coefficients. This naturally leads to a class of ALmost EXact (ALEX) boundary conditions in atomic and multiscale simulations.
Bessel function, asymptotic analysis, approximate linear relation, ALEX boundary condition
2010 Mathematics Subject Classification
This study is partially supported by the National Natural Science Foundation of China under contract numbers 11521202, 11502028 and 11272009.
Paper received on 30 April 2016.
Paper accepted on 1 July 2017.