hyperelliptic functions
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1: 22.19 Physical Applications
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§22.19(iv) Tops
►The classical rotation of rigid bodies in free space or about a fixed point may be described in terms of elliptic, or hyperelliptic, functions if the motion is integrable (Audin (1999, Chapter 1)). Hyperelliptic functions are solutions of the equation , where is a polynomial of degree higher than 4. …2: 21.7 Riemann Surfaces
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§21.7(iii) Frobenius’ Identity
…3: 19.16 Definitions
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►with the same conditions on , , as for (19.16.1), but now .
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►and is a degenerate case of , so is a degenerate case of the hyperelliptic integral,
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§19.16(ii)
… ►The -function is often used to make a unified statement of a property of several elliptic integrals. … ► …4: 31.8 Solutions via Quadratures
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31.8.2
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►The variables and are two coordinates of the associated hyperelliptic (spectral) curve .
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►By automorphisms from §31.2(v), similar solutions also exist for , and may become a rational function in .
…For , these solutions reduce to Hermite’s solutions (Whittaker and Watson (1927, §23.7)) of the Lamé equation in its algebraic form.
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