Hypergeometric Differential Equation
An useful ordinary differenctial equation
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Mathematical Physics
Generating Function and Integral Representation of the Bessel Function
The Bessel function can be expressed not only in an infinite series form, but also in an integral form.
The Method of Steepest Descent and Asymptotic Forms of Airy Function
A powerful technique that can be used when obtaining an asymptotic approximation of a real-valued function