Approximate factorization of multidimensional polynomials depending on a parameter \(\lambda\). (English) Zbl 0781.93048

Summary: A non-factorizable multidimensional polynomial is approximated by a factorizable polynomial in the sense of the least square approach. The non-factorizable polynomial can be varied by a parameter \(\lambda\) analogous to a gain in one-dimensional control systems.


93C35 Multivariable systems, multidimensional control systems
93C05 Linear systems in control theory