activity
20012018
most citedThe Chern-Simons Invariant in the Berry Phase of a Two by Two Hamiltonian

13 citations · 27 across the 9 of their papers we have counts for

collaborators

9 papers

math-ph2018

The planar 3-body problem II:reduction to pure shape and spherical geometry (2nd version)

Wu-Yi Hsiang, Eldar Straume

Geometric reduction of the Newtonian planar three-body problem is investigated in the framework of equivariant Riemannian geometry, which reduces the study of trajectories of three…

math.MG2017

A new local invariant and simpler proof of Kepler's conjecture and the least action principle on the crystalformation of dense type

Wu-Yi Hsiang

A new locally averaged density for sphere packing in R^3 is defined by a proper combination of the local cell (Voronoi cell) and Delaunay decompositions (§1.2.2), using only a sing…

math.HO2014★ 4 cited

Revisiting the mathematical synthesis of the laws of Kepler and Galileo leading to Newton's law of universal gravitation

Wu-Yi Hsiang, Eldar Straume

Newton's deduction of the inverse square law from Kepler's ellipse and area laws together with his "superb theorem" on the gravitation attraction of spherically symmetric bodies, a…

physics.hist-ph2008★ 4 cited

The epic journey from Kepler's laws to Newton's law of universal gravitation revisited

Hai-Chau Chang, Wu-Yi Hsiang

In this article, we review the main results of Volume I of Newton's Principia which relates Kepler's law of planets and universal gravitation. In order to clarify the reasoning of…

math-ph2006★ 1 cited

Global geometry of planary 3-body motions

Wu-Yi Hsiang, Eldar Straume

In a recent paper (arXiv:math-ph/0609076) the authors investigated the basic global geometry of congruence moduli curves and shape curves of 3-body motions with vanishing angular m…

math-ph2006★ 1 cited

Global geometry of 3-body motions with vanishing angular momentum, I

Wu-Yi Hsiang, Eldar Straume

Following Jacobi's geometrization of Lagrange's least action principle, trajectories of classical mechanics can be characterized as geodesics on the configuration space M with resp…