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Results tagged with positivity
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user 3621
5
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answers
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Notions of positivity for q-polynomials
What are some existing notions of positivity (or nonnegativity) for $\mathbf{R}[q]$ such that all $q$-integers $[n]_q = 1+q+... …
- 19.7k
9
votes
2
answers
348
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Solving systems of linear equations without introducing negative numbers
Consider a system of $n$ linear equations with $n$ unknowns, all of whose coefficients and right hand sides are nonnegative integers, with a unique solution consisting of nonnegative rational numbers. …
- 19.7k