Abstract:
We introduce the notion of Darboux transformations for the strict KP hierarchy. We previously showed that solutions of this integrable hierarchy can be constructed from a flag variety F(1). Here, we describe which two points in this flag variety are connected by such a transformation. Moreover, we present a closed form of the operators that realize this transformation and describe their geometric characteristics. We show which of these Darboux transformations map solutions of the strict n-KdV hierarchy to other solutions of this reduction of the strict KP hierarchy.
Citation:
G. F. Helminck, E. A. Panasenko, “Darboux transformations for the strict KP hierarchy”, TMF, 206:3 (2021), 339–360; Theoret. and Math. Phys., 206:3 (2021), 296–314
This publication is cited in the following 2 articles:
G. F. Helminck, V. A. Poberezhny, S. V. Polenkova, “Darboux transformations for the discrete versions of the KP and strict KP hierarchies”, Theoret. and Math. Phys., 221:3 (2024), 2031–2048
Yuru Hu, Feng Zhang, Xiangpeng Xin, Hanze Liu, “Darboux transformation and exact solutions of the variable-coefficient nonlocal Gerdjikov–Ivanov equation”, Theoret. and Math. Phys., 211:1 (2022), 460–472