Heun's equation is a second-order differential equation which crops up in a variety of forms in a wide range of problems in applied mathematics. These include i

Second Order Differential Equations presents a classical piece of theory concerning hypergeometric special functions as solutions of second-order linear differe

The subject of this book is the theory of special functions, not considered as a list of functions exhibiting a certain range of properties, but based on the un

The fun and easy way to understand and solve complex equations Many of the fundamental laws of physics, chemistry, biology, and economics can be formulated as d

In 1836-1837 Sturm and Liouville published a series of papers on second order linear ordinary differential operators, which started the subject now known as the