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Absolute Real Root Separation

Yann Bugeaud, Andrej Dujella, Tomislav Pejković, Bruno Salvy
2017 The American mathematical monthly  

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2016 pre-print arXiv:1606.01131v1 fatcat:fictetaj25gzlkbrfjmde3yg64
While the separation (the minimal nonzero distance) between roots of a polynomial is a classical topic, its absolute counterpart (the minimal nonzero distance between their absolute values) does not seem to have been studied much. We present the general context and give tight bounds for the case of real roots.
doi:10.4169/amer.math.monthly.124.10.930 fatcat:5m6qihvwxzd7rnhehdhblqrjdm
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Yann Bugeaud, Andrej Dujella, Tomislav Pejković, Bruno Salvy. "Absolute Real Root Separation." The American mathematical monthly 124.10 (2017) 930