ELLIPTIC SOLITONS, FUCHSIAN EQUATIONS, AND ALGORITHMS

被引:5
|
作者
Brezhnev, Yu. V. [1 ]
机构
[1] Tomsk State Univ, Tomsk 634050, Russia
关键词
Elliptic solitons; Fuchsian equations; monodromy groups; integration methods; Kovacic algorithm; FINITE-GAP; HEUN EQUATION; INTEGRABILITY; POTENTIALS;
D O I
10.1090/S1061-0022-2013-01253-2
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
It is shown how the elliptic finite-gap potentials of the Schrodinger equation give rise to a family of solvable linear differential equations of the Fuchs class on the plane and on the torus: the latter case cannot be integrated via realizations of the Zinger Kovacic type algorithms known in the Picard-Vessiot theory. For the arising Fuchsian equations, monodromy groups and their representations are constructed, the differential Galois group is described, together with a (recursive) method for calculation of the objects involved therein.
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页码:555 / 574
页数:20
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