Multi-integral representations for Jacobi functions of the first and second kindCohl, H. S. and Costas-Santos, R. S. Arab Journal of Basic and Applied Sciences 30 (1) (2023), 583 — 592
One may consider the generalization of Jacobi polynomials and the Jacobi function of the second kind to a general function where the index is allowed to be a complex number instead of a non-negative integer. These functions are referred to as Jacobi functions. In a similar fashion as associated Legendre functions, these break into two categories, functions which are analytically continued from the real line segment \((-1,1)\) and those continued from the real ray \((1,+\infty)\).
Using properties of Gauss hypergeometric functions, we derive multi-derivative and multi-integral representations for the Jacobi functions of the first and second kind.
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