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math.CV2021
Rational functions as new variables
Diana Andrei, Olavi Nevanlinna, Tiina Vesanen
In multicentric calculus one takes a polynomial with distinct roots as a new variable and represents complex valued functions by -valued functions, where is th…
math.CV2016
Multicentric calculus and the Riesz projection
Diana Apetrei, Olavi Nevanlinna
In multicentric holomorphic calculus one represents the function using a new polynomial variable in such a way that when it is evaluated at the operator then $p(A…