Heun functions, which generalise the well‐known hypergeometric functions, are solutions to the Heun differential equation – a second‐order linear differential equation with four regular singular ...

Quantum mechanics continues to offer profound insights into the fundamental nature of matter and energy, and the use of special functions plays a critical role in obtaining exact analytical solutions ...

Summary This note examines the application of the power series method to the solution of second order homogeneous linear ODEs, and shows that it works in a straightforward way only under restrictive ...