國立清華大學 數學系

Speaker: Prof. Kuo-Chang Chen Title: The Kepler problem – old and new Time: Mar. 06 (Mon) 4:30pm-5:30pm Abstract: The Newtonian 2-body problem is also known as the Kepler problem in honor of Johannes Kepler (1571-1630) for his discovery of three laws of planetary motion, based on which Newton deduced in 1687 the celebrated law of universal gravitation. It is commonly considered a well-understood problem, as solving it with given initial data and proving Kepler's three laws require nothing more than tools from elementary calculus. In this talk I will briefly describe its history, and outline recent discoveries from variational perspectives. Venue: 國立清華大學綜三館4F Lecture room B Tea Time: 4:00pm-4:30pm,R707