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https://jmi.ele-math.com/16-37/On-multi-index-Whittaker-function,-related-integrals-and-inequalities Ele-Math – Journal of Mathematical Inequalities: On multi-index Whittaker function, related... whittaker function ele math journal inequalities https://functions.wolfram.com/HypergeometricFunctions/WhittakerW/03/01/03/0010/ Whittaker hypergeometric function W: Specific values (formula 07.45.03.0023) hypergeometric function whittaker specific values formula