Durand and Kerner independently have proposed a quadratically convergent iteration method for finding all zeros of a polynomial simultaneously. Here, a new derivation of their iteration equation is ...

Dan-fu Han, THE CONVERGENCE OF DURAND-KERNER METHOD FOR SIMULTANEOUSLY FINDING ALL ZEROS OF THE POLYNOMIAL, Journal of Computational Mathematics, Vol. 18, No. 6 (NOVEMBER 2000), pp. 567-570 ...