ピーター・オルバー
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González‐López, A., Kamran, N., & Olver, P. J. (1992). Lie algebras of vector fields in the real plane. Proceedings of the London Mathematical Society, 3(2), 339-368.
Olver, P. J., & Rosenau, P. (1996). Tri-Hamiltonian duality between solitons and solitary-wave solutions having compact support.