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JOURNALS // Regular and Chaotic Dynamics // Archive

Regul. Chaotic Dyn., 2025, Volume 30, Issue 4, Pages 464–480 (Mi rcd1316)

Special Issue: Celebrating the 75th Birthday of V.V. Kozlov (Issue Editors: Sergey Bolotin, Vladimir Dragović, and Dmitry Treschev)

Spinning Top in Quadratic Potential and Matrix Dressing Chain

Vsevolod E. Adlera, Alexander P. Veselovb

a Landau Institute for Theoretical Physics, pr. Semenova 1A, 142432 Chernogolovka, Russia
b Department of Mathematical Sciences, Loughborough University, LE11 3TU Loughborough, UK

Abstract: We show that the equations of motion of a rigid body about a fixed point in the Newtonian field with a quadratic potential are special reduction of period-one closure of the Darboux dressing chain for the Schrödinger operators with matrix potentials. Some new explicit solutions of the corresponding matrix system and the spectral properties of the related Schr¨odinger operators are discussed.

Keywords: rigid body dynamics, matrix Schrödinger operators, Darboux transformations

MSC: 37J35, 70H06, 81R12

Received: 24.04.2025
Accepted: 01.07.2025

Language: English

DOI: 10.1134/S1560354725040021



© Steklov Math. Inst. of RAS, 2025