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JOURNALS // Zapiski Nauchnykh Seminarov POMI // Archive

Zap. Nauchn. Sem. POMI, 2025 Volume 543, Pages 5–14 (Mi znsl7581)

An exact calculation of orientation of a freely rotating rigid body

S. Adlaj

A. A. Dorodnicyn Computing Centre of the Russian Academy of Sciences

Abstract: We present an algorithmically implementable solution to the problem of determining the exact orientation of a freely rotating rigid body as an explicit function of time.

Key words and phrases: Dzhanibekov effect, elliptic integrals of three types, Euler equations, exact solution, Galois axis, Galois (alternative and essential) elliptic function, Klein 4-group, MacCullagh ellipsoid of inertia, polehode and herpolehode, precession, principal momenta and axes of inertia, pseudovector, torque free rigid body motion.

UDC: 531.16, 531.583, 517.938

Received: 20.10.2025

Language: English



© Steklov Math. Inst. of RAS, 2026