
We classify the two‐variable hypergeometric functions that arise as eigenfunctions of the Laplace‐Beltrami operator on S2 and characterize these functions in terms of elements in the enveloping algebra of so(3). This operator characterization is used to derive transformation and reduction formulas for the functions.
Classical hypergeometric functions, \({}_2F_1\), hypergeometric functions of two variables, angular momentum operators, eigenfunctions of Laplace-Beltrami operator, Horn functions, Connections of hypergeometric functions with groups and algebras, and related topics, eigenfunction of Casimir operator
Classical hypergeometric functions, \({}_2F_1\), hypergeometric functions of two variables, angular momentum operators, eigenfunctions of Laplace-Beltrami operator, Horn functions, Connections of hypergeometric functions with groups and algebras, and related topics, eigenfunction of Casimir operator
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