Nonlinear Sciences – Exactly Solvable and Integrable Systems
Scientific paper
2005-06-29
Regular and Chaotic Dynamics, 10, No.4 (2005), 463-485
Nonlinear Sciences
Exactly Solvable and Integrable Systems
15 figures
Scientific paper
We propose a simple method of explicit description of families of closed geodesics on a triaxial ellipsoid $Q$ that are cut out by algebraic surfaces in ${\mathbb R}^3$. Such geodesics are either connected components of spatial elliptic curves or rational curves. Our approach is based on elements of the Weierstrass--Poncar\'e reduction theory for hyperelliptic tangential covers of elliptic curves and the addition law for elliptic functions. For the case of 3-fold and 4-fold coverings, explicit formulas for the cutting algebraic surfaces are provided and some properties of the corresponding geodesics are discussed.
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