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Lagrange top: integrability according to Liouville and examples of analytic solutions

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arxiv 2306.02394 v5 pith:ISN6SWF7 submitted 2023-06-04 physics.class-ph astro-ph.EPhep-thmath-phmath.MPnlin.SI

classification physics.class-phastro-ph.EPhep-thmath-phmath.MPnlin.SI
keywords caseequationsbodyexampleslagrangeprecessionsolutionsaccording
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Equations of a heavy rotating body with one fixed point can be deduced starting from a variational problem with holonomic constraints. When applying this formalism to the particular case of a Lagrange top, in the formulation with a diagonal inertia tensor the potential energy has more complicated form as compared with that assumed in the literature on dynamics of a rigid body. This implies the corresponding improvements in equations of motion. Therefore, we revised this case, presenting several examples of analytical solutions to the improved equations. The case of precession without nutation has a surprisingly rich relationship between the rotation and precession rates, and this is discussed in detail.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Dynamics of a relativistic discrete body: rigidity conditions, and covariant equations of motion

    gr-qc 2026-05 unverdicted novelty 7.0 of 10

    Proposes Poincaré-covariant equations of motion for a discrete relativistic body with six dynamical degrees of freedom, allowing more general motions than Born's theory.

  2. An alternative interpretation of the Grioli gyroscope suspension points

    physics.class-ph 2025-06 conditional novelty 4.0 of 10

    An asymmetric heavy gyroscope can regularly precess only when its suspension point lies on one of two lines marking where the intermediate and largest moments of inertia exchange order, with exactly two motions.

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