Separation of Variables for the Ruijsenaars System
Separation of Variables for the Ruijsenaars System
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Ruijsenaars 系统的变量分离
DOI:
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发表时间:
1997
期刊:
影响因子:
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通讯作者:
Evgeny Sklyanin
中科院分区:
文献类型:
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作者:
V. B. Kuznetsov;F. Nijhoff;Evgeny Sklyanin
Abstract:We construct a separation of variables for the classical n-particle Ruijsenaars system (the relativistic analog of the elliptic Calogero-Moser system). The separated coordinates appear as the poles of the properly normalised eigenvector (Baker-Akhiezer function) of the corresponding Lax matrix. Two different normalisations of the BA functions are analysed. The canonicity of the separated variables is verified with the use of the r-matrix technique. The explicit expressions for the generating function of the separating canonical transform are given in the simplest cases n=2 and n=3. Taking the nonrelativistic limit we also construct a separation of variables for the elliptic Calogero-Moser system.