In this paper, the minimal positive entropy of pure braids is shown to be greater than $\log(2+\sqrt5)$, independent of the braid index. For pure 3-braids, the minimal entropy is shown to be equal to $\log(3+2\sqrt2)$.
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Title
UPPER AND LOWER BOUNDS FOR THE MINIMAL POSITIVE ENTROPY OF PURE BRAIDS
Creators - without role
WON TAEK Song - Korea Institute for Advanced Study
Wentu Song - SCI,MATH & Technology
Publication Details
The Bulletin of the London Mathematical Society, Vol.37(2), pp.224-229