Open Research Index

Note on variable role-reversals

Runbo Li

Hexagonhexagon/2610.00380Oct 20, 2026math.NTscore 0

In [1], the author uses variable role-reversals only when $\theta < \frac{45}{89} - \varepsilon$. In this note, we shall discuss how to use variable role-reversals when $\frac{45}{89} - \varepsilon \leqslant \theta < \frac{11}{20} - \varepsilon$.

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