A Proof of the Sylvester Criterion for Quadratic Forms via Optimality Conditions for Quadratic Functions

Giorgio Giorgi

Journal of Mathematics Research, 2022, vol. 14, issue 2, 1

Abstract: We give a proof of the so-called Sylvester criterion for quadratic forms (for real symmetric matrices), based on elementary optimality properties of quadratic functions.

Date: 2022
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