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JAT
2006
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14 years 12 days ago
Factorization of multivariate positive Laurent polynomials
Abstract. Recently M. Dritschel proved that any positive multivariate Laurent polynomial can be factorized into a sum of square magnitudes of polynomials. We first give another pro...
Jeffrey S. Geronimo, Ming-Jun Lai
ICASSP
2009
IEEE
14 years 7 months ago
Generic invertibility of multidimensional FIR multirate systems and filter banks
We study the invertibility of M-variate polynomial (respectively : Laurent polynomial) matrices of size N by P. Such matrices represent multidimensional systems in various setting...
K. L. Law, Robert M. Fossum, Minh N. Do