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math.AC2016
Closed formula for univariate subresultants in multiple roots
Carlos D'Andrea, Teresa Krick, Agnes Szanto +1
We generalize Sylvester single sums to multisets (sets with repeated elements), and show that these sums compute subresultants of two univariate polyomials as a function of their r…
math.AC2016
Subresultants in multiple roots: an extremal case
Alin Bostan, Carlos D'Andrea, Teresa Krick +2
We provide explicit formulae for the coefficients of the order-d polynomial subresultant of (x-α)^m and (x-β)^n with respect to the set of Bernstein polynomials \{(x-α)^j(x-β)^{d-j…