On some questions related to the Krichever correspondence

Details On some questions related to the Krichever correspondence On some questions related to the Krichever correspondence

2006-10-11

arxiv.org/abs/math/0610364v3

Mathematical Notes, 2007, Vol. 81, No. 4, pp. 467-476

Mathematics

Algebraic Geometry

13 p

Scientific paper

We investigate various new properties and examples of one-dimensional and two-dimensional Krichever correspondence developed by Parshin. In particular, we give explicit examples of the Krichever-Parshin map for various plane curves, we introduce analogs of the Schur pairs in a two-dimensional local field and show that they are oft geometrical. At the end we investigate analogs of the KP hierarchy for two-dimensional local skew-fields with arbitrary commutation law instead of the usual law of Weyl algebra. We derive for these hierarchies new partial differential equations, which coincide with the usual KP equation for certain values of parameters.

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