TY - JOUR ID - Takei2015 LB - Takei2015 AU - Takei, Yoshitsugu TI - On the multisummability of WKB solutions of certain singularly perturbed linear ordinary differential equations ST - On the multisummability of WKB solutions of certain singularly perturbed linear ordinary differential equations JO - Opuscula Math. JA - Opuscula Math. JF - Opuscula Mathematica PY - 2015 VL - 35 IS - 5 SP - 775 EP - 802 DO - http://dx.doi.org/10.7494/OpMath.2015.35.5.775 UR - http://dx.doi.org/10.7494/OpMath.2015.35.5.775 AB - Using two concrete examples, we discuss the multisummability of WKB solutions of singularly perturbed linear ordinary differential equations. Integral representations of solutions and a criterion for the multisummability based on the Cauchy-Heine transform play an important role in the proof. KW - exact WKB analysis KW - WKB solution KW - multisummability SN - 1232-9274 ER -