Finiteness of central configurations of n bodies in the plane via tropical geometry

Người báo cáo: Professor Anton Leykin (Georgia Tech, School of Mathematics)

Time: 9:30 - 11:30, 13 January 2026

Venue: Room 507, A6, Institute of Mathematics

Online (Zoom meeting): https://zoom.us/j/99636681387?pwd=0WscBnehOJig68SqctGluVuA3RwraE.1

Meeting ID: 996 3668 1387

Passcode: 123456

Abstract: We present a new method to attempt proving that, for a given n, there are finitely many equivalence classes of planar central configurations in the Newtonian n-body problem for generic masses.

Our technique relies on tropical geometry and massive polyhedral computation. We have completed a computer-assisted proof for n > 4 and made progress toward a proof for n=6, which is the next unsettled case for this version of Smale's sixth problem. (Joint with Anders N. Jensen).

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Xuất bản mới
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Lê Viết Cường, Đoàn Thái Sơn, Nguyễn Thị Thu Sương, Proportional local assignability of two-sided dichotomy spectrum of linear time-varying systems, Journal of Differential Equations Volume 477, 5 October 2026, 114592 .
Lê Tuấn Hoa, Doan Quang Tien, New bounds on Castelnuovo-Mumford regularity of monomial curves and application to sumsets, Journal of Pure and Applied Algebra Volume 230, Issue 9, September 2026, 108323 .