A Higher Order Iterative Method for Computing the Drazin Inverse

Table 1

Some of the general ways to choose 𝑉₀.

Forms	Form 1	Form 2	Form 3	Form 4	Form 5
Initial formulation	𝐴/‖𝐴‖^21	𝐴/‖𝐴‖^2∞	𝐴/‖𝐴‖^2𝐹	𝐴^𝑇/(𝑁‖𝐴‖1‖𝐴‖∞)	𝐴^∗/‖𝐴‖^22