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On the discriminant of certain quadrinomials

Shuichi Otake, Tanush Shaska

I-AIMS paper 2018-2 · Published in Contemp. Math. 724 (2019), 55–72 · 2019

We give an explicit formula for the discriminant of the quadrinomials of the form f(x) = xⁿ + t(x² + ax + b). The proof uses Bezoutians of polynomials. This paper is an extended version of earlier work.

MSC classes: Primary 12Y05; Secondary 12E10

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