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This article is cited in 5 scientific papers (total in 5 papers)
Construction of KdV flow I. $\tau$-Function via Weyl function
S. Kotani Osaka University, 2-13-2 Yurinokidai Sanda 669-1324, Japan
Abstract:
Sato introduced the $\tau$-function to describe solutions to a wide class of completely integrable differential equations. Later Segal–Wilson represented it in terms of the relevant integral operators on Hardy space of the unit disc. This paper gives another representation of the $\tau$-functions by the Weyl functions for 1d Schrödinger operators with real valued potentials, which will make it possible to extend the class of initial data for the KdV equation to more general one.
Key words and phrases:
KdV equation, Sato theory, Schrödinger operator.
Received: 06.02.2018
Citation:
S. Kotani, “Construction of KdV flow I. $\tau$-Function via Weyl function”, Zh. Mat. Fiz. Anal. Geom., 14:3 (2018), 297–335
Linking options:
https://www.mathnet.ru/eng/jmag702 https://www.mathnet.ru/eng/jmag/v14/i3/p297
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