B. Deschamps et G. Grekos, Estimate of the number of exceptions to the fact that a basis set deprivedof a point remains a basis set, J REIN MATH, 539, 2001, pp. 45-53
In this article, we show that if A denotes a basis set of order h greater t
han or equal to 2 and if A* denotes the set of elements alpha epsilon A suc
h that A - {alpha} remains a basis set, then
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Moreover, thanks to an example, we show that this estimate in
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is best possible.