2 papers
math.NA2025
Multicentric representation of piecewise constant holomorphic functions and Hermite interpolation
Olavi Nevanlinna, Tiina Vesanen
In multicentric representation of piecewise holomorphic functions one combines Lagrange interpolation at roots of a polynomial with convergent power series of as the "coeff…
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…