An Improved Upper Bound on the Number of Billiard Ball Collisions

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چکیده

We give a new upper bound $K_+$ on the number of totally elastic collisions $n$ hard spheres with equal radii and masses in $R^d$. Our satisfies $\log K_+ \leq c(d) n \log n$.

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ژورنال

عنوان ژورنال: Communications in Mathematical Physics

سال: 2022

ISSN: ['0010-3616', '1432-0916']

DOI: https://doi.org/10.1007/s00220-021-04278-6