A note on an analogue of Hadamard’s theorem for determining the radii of m-meromorphy

A note on an analogue of Hadamard’s theorem for determining the radii of m-meromorphy Nattapong Bosuwan In this paper, we prove an extension of Hadamard’s classical theorem for determining the radius of mmeromorphyof an analytic function in terms of its Taylor coefficients. Our extension is expressed in terms of Fouriercoefficients with respect to an orthonormal …

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