Geodesic
On the recovery, from a countable collection of polynomial conservation laws, of action variables for the KdV equation in the class of almost periodic functions
Sbornik. Mathematics, Tome 56 (1987) no. 2, pp. 417-428 Cet article a éte moissonné depuis la source Math-Net.Ru

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In the indicated class a criterion is given for the unique recovery of the function of rotation number on the basis of a countable collection of polynomial conservation laws. Bibliography: 14 titles. 
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     title = {On the recovery, from a~countable collection of polynomial conservation laws, of action variables for the {KdV} equation in the class of almost periodic functions},
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M. V. Novitskii. On the recovery, from a countable collection of polynomial conservation laws, of action variables for the KdV equation in the class of almost periodic functions. Sbornik. Mathematics, Tome 56 (1987) no. 2, pp. 417-428. http://geodesic.mathdoc.fr/item/SM_1987_56_2_a8/

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