On the Stabilization of Multidimensional Recursive Digital Filters
Daka Raghuramireddy, Rolf Unbehauen · IEEE Transactions on Geoscience and Remote Sensing · 1987
It is brought to light that a one-dimensional lacunar leastsquares inverse (LSI) polynomial is not necessarily stable and that theproof of the theorem [1] about the stability of multidimensional LSIpolynomials is questionable, even though the theorem seems to be true.