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arXiv · 1204.2402

Neutrally floating objects of density 1/2 in three dimensions

Péter L. Várkonyi
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Abstract

This paper is concerned with the Floating Body Problem of S. Ulam: the existence of objects other than the sphere, which can float in a liquid in any orientation. Despite recent results of F. Wegner pointing towards an affirmative answer, a full proof of their existence is still unavailable. For objects with cylindrical symmetry and density 1/2, the conditions of neutral floating are formulated as an initial value problem, for which a unique solution is predicted in certain cases by a suitable generalization of the Picard-Lindel\"of theorem. Numerical integration of the initial value problem provides a rich variety of neutrally floating shapes.

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Péter L. Várkonyi. 2012-04-11. Neutrally floating objects of density 1/2 in three dimensions. https://arxiv.org/abs/1204.2402

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