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机械学院报告——千年之谜—三体问题新进展

发布日期:2018-03-16 作者:机械工程与力学学院

20183月16日,星期,1:30PM
绣山工程大楼208室
 
千年之谜—三体问题新进展
 
孙博华Bohua Sun 教授                        
南非开普半岛科技大学
Cape Town Peninsula University of Technology
报告摘要
The famous three-body problem, originating from the Sun-Earth-Moon system under the Newtonian gravitation field, is particularly attractive, for which Oscar II, King of Sweden, established a prize in 1887 for anyone who could find the solution. The prize was finally awarded to Henri Poincaré, who first found that there is no general analytical solution. It is now recognized that the ensemble of its orbits has an enormous complexity. Recently, thanks to the advance of computational techniques, some breakthroughs begin to emerge: a figure-eight orbit was discovered numerically by Moore in 1993, and 13 new distinct periodic orbits are found by Suvakov and Dmitrasinovic in 2013, when three masses are equal with zero angular momentum. In 2017, Li and Liao, Li et al. reported a further major advance: 695 periodic orbits with equal masses, and 1223 periodic orbits found later with unequal masses. In 2018, Sun proposed a Kepler’s third law for 3-body and n-body system.
孙博华,南非科学院院士,南非开普半岛科技大学机械系应用力学终身正教授、校务委员会委员(Senate),力学、智能结构和微系统研究所所长,2010年中国海外华人十大新闻人物。他因在应用力学、智能结构和微机电陀螺芯片等研究领域的突出成就,于20101013日当选南非科学院院士,成为登上南非科学界最高殿堂的华人科学家;他还于同年入选为南非皇家学会会员(Royal Society of South Africa - RSSA)。