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Use for questions regarding duality of mathematical object, i.e. dual spaces, objects with two possible interpretations etc.
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For univariate polynomial is non-negativity on an interval equivalent to having a nonnegativ...
Let $\mathbb R_d[t]$ be the set of univariate polynomials in the variable $t$ of degree $d$, and $S$ be the set of elements of $\mathbb R_d[t]$ that are nonnegative on $[0, 1]$. Does the following equ …