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Lewis, D. W. Annihilating Polynomials and Positive Forms. Canadian mathematical bulletin, Tome 35 (1992) no. 1, pp. 103-107. doi: 10.4153/CMB-1992-015-4
@article{10_4153_CMB_1992_015_4,
author = {Lewis, D. W.},
title = {Annihilating {Polynomials} and {Positive} {Forms}},
journal = {Canadian mathematical bulletin},
pages = {103--107},
year = {1992},
volume = {35},
number = {1},
doi = {10.4153/CMB-1992-015-4},
url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1992-015-4/}
}
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