The Modified Toda Hierarchy
In this paper, the modified Toda (mToda) equation is generalized to form an integrable hierarchy in the framework of Sato theory, which is therefore called the mToda hierarchy. Inspired by the fact that the Toda hierarchy is a 2-component generalization of the usual KP hierarchy, the mToda hierarchy...
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| Published in: | Symmetry, Integrability and Geometry: Methods and Applications |
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| Date: | 2024 |
| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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Інститут математики НАН України
2024
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/212782 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | The Modified Toda Hierarchy. Wenjuan Rui, Wenchuang Guan, Yi Yang and Jipeng Cheng. SIGMA 20 (2024), 110, 21 pages |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | In this paper, the modified Toda (mToda) equation is generalized to form an integrable hierarchy in the framework of Sato theory, which is therefore called the mToda hierarchy. Inspired by the fact that the Toda hierarchy is a 2-component generalization of the usual KP hierarchy, the mToda hierarchy is constructed from bilinear equations of the 2-component first modified KP hierarchy, where we provide the corresponding equivalence with Lax formulations. Then it is demonstrated that there are Miura links between the Toda and mToda hierarchies, which means the definition of the mToda hierarchy here is reasonable. Finally, Darboux transformations of the Toda and mToda hierarchies are also constructed by using the aforementioned Miura links.
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| ISSN: | 1815-0659 |