Burdzy, KrzysztofDuarte, Mauricio2021-09-152021-09-152019-12Communications in Mathematical Physics Volume 372, Issue 2, Pages 679 - 7111 December 20190010-3616http://repositorio.unab.cl/xmlui/handle/ria/20271Indexación: ScopuWe prove by example that the number of elastic collisions of n balls of equal mass and equal size ind-dimensional space can be greater than n3/27 for n≥ 3 and d≥ 2. The previously known lower bound was of order n2. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.enBilliardsLorentz GasStandard MapArtículoAttribution 4.0 International10.1007/s00220-019-03399-3