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In a recent paper, Br\"and\'en, Krasikov, and Shapiro consider root location preservation properties of finite difference operators.
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JL Walsh, On the location of the roots of certain types of polynomials , Transactions of the American Mathematical Society (1922), 163–180
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T Suffridge, Starlike functions as limits of polynomials , Lecture Notes in Mathematics 505
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S Fisk, Polynomials, roots, and interlacing , https://arxiv.org/abs/math/0612833 (2006), xx+700
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Cited alongside, same era.
2015
Cited alongside, same era.
Petter Brändén, Ilia Krasikov, and Boris Shapiro, Elements of pólya-schur theory in the finite difference setting , Proceedings of the American Mathematical Society 144, 11
2016
Cited alongside, same era.
Martin Lamprecht, Suffridge’s convolution theorem for polynomials and entire functions having only real zeros , Advances in Mathematics 288
2016
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Fedor (https://mathoverflow.net/users/4312/fedor-petrov) Petrov, Combinatorial identity with connection coefficients and falling factorial ⟨ i x ⟩ n \langle ix\rangle_{n} , MathOverflow, URL:https://mathoverflow.net/q/256199 (version: 2016-12-02)
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