On the WKBJ approximation

DOI10.1063/1.527640zbMath0614.34052OpenAlexW2116873015MaRDI QIDQ4722418

M. El Sawi

Publication date: 1987

Published in: Journal of Mathematical Physics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1063/1.527640

zbMATH Keywords

WKBJ methodsecond-order homogeneous linear differential equation

Mathematics Subject Classification ID

Singular perturbations, turning point theory, WKB methods for ordinary differential equations (34E20) Ordinary differential operators (34L99)

Related Items (2)

A new approach for the Jeffreys–Wentzel–Kramers–Brillouin theory ⋮ Comments on the paper ‘‘On the WKBJ approximation’’ [J. Math. Phys. 2 8, 556 (1987)]

Cites Work

• Improved error bounds for the Liouville Green (or WKB) approximation
• Extension of the WKB Equation
• Five-term WKBJ approximation

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