Journal of Classical Analysis · Volume 18, Issue 1 Sharp error bounds for turning point expansions 18-05 Pages 49-81 DOI 10.7153/jca-2021-18-05 Downloads Short PDF Full PDF PNG Authors T. M. Dunster A. Gil J. Segura Keywords asymptotic expansions airy functions turning point theory WKB methods Subject classes 34E05 33C10 33F05 34E20