Constrained discrete KP hierarchy: The constraint on the tau functions and gauge transformations
We investigate two topics of the constrained discrete KP hierarchy: the constraint on the tau functions and gauge transformations. For the constrained dKP hierarchy, the constraint on the Lax operator is shown to be equivalent to a constraint on the tau function, which provides another description o...
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| Veröffentlicht in: | Theoretical and mathematical physics 2023-03, Vol.214 (3), p.334-353 |
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| container_title | Theoretical and mathematical physics |
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| creator | Song, Jia-Qi Li, Chong Cheng, Ji-Peng Chen, Min-Ru |
| description | We investigate two topics of the constrained discrete KP hierarchy: the constraint on the tau functions and gauge transformations. For the constrained dKP hierarchy, the constraint on the Lax operator
is shown to be equivalent to a constraint on the tau function, which provides another description of the constrained dKP hierarchy. We also find that there are two different choices of the generating functions in gauge transformation operators of the constrained discrete KP hierarchy. |
| doi_str_mv | 10.1134/S0040577923030030 |
| format | Article |
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| subjects | 14/34 639/766/189 639/766/530 639/766/747 Applications of Mathematics Constraints Mathematical and Computational Physics Operators (mathematics) Physics Physics and Astronomy Theoretical Transformations (mathematics) |
| title | Constrained discrete KP hierarchy: The constraint on the tau functions and gauge transformations |
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