Life of Fred Complex Analysis (Homeschool Math / Theory of Functions)

A Treatise on the Theory of Bessel Functions And There Applications To Physics 2

Konrad Knopp Theory of Functions Part 2 applications and further development...

On Riemann's Theory of Algebraic Functions and Their Integrals by Felix Klein

Theory of incomplete cylindrical functions and their applications. Die Grundlehr

The Theory of Determinants: And Their Applications (Classic Reprint)

A Treatise on the Theory of Determinants and Their Applications in Analysis and