Approximate linear relations for bessel functions

  • Gang Pang
  • , Shaoqiang Tang*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)1967-1986
Number of pages20
JournalCommunications in Mathematical Sciences
Volume15
Issue number7
DOIs
StatePublished - 2017
Externally publishedYes

Keywords

  • ALEX boundary condition
  • Approximate linear relation
  • Asymptotic analysis
  • Bessel function

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