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Counterexample in the least-squares inverse stabilisation of 2D recursive filters |
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| Authors: | Genin Y. Kamp Y. |
| Affiliation: | MBLE Research Laboratory, Brussels, Belgium; |
| Abstract: | A counterexample is presented disproving the conjecture that the planar least-squares inverse of a 2-variable polynomial is devoid of zeros when both variables are inside or on the unit circle. |
| Keywords: | |