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Nonlinear Integrable Couplings of Levi Hierarchy and WKI Hierarchy [PDF]

open access: yesAbstract and Applied Analysis, 2014
With the help of the known Lie algebra, a type of new 8-dimensional matrix Lie algebra is constructed in the paper. By using the 8-dimensional matrix Lie algebra, the nonlinear integrable couplings of the Levi hierarchy and the Wadati-Konno-Ichikawa (WKI)
Zhengduo Shan, Hongwei Yang, Baoshu Yin
doaj   +4 more sources

Symmetries and integrable systems [PDF]

open access: yesFundamental Research
Symmetry plays key roles in modern physics especially in the study of integrable systems because of the existence of infinitely many local and nonlocal generalized symmetries.
Sen-Yue Lou, Bao-Feng Feng
doaj   +2 more sources

A Complex Integrable Hierarchy and Its Hamiltonian Structure for Integrable Couplings of WKI Soliton Hierarchy [PDF]

open access: yesAbstract and Applied Analysis, 2014
We generate complex integrable couplings from zero curvature equations associated with matrix spectral problems in this paper. A direct application to the WKI spectral problem leads to a novel soliton equation hierarchy of integrable coupling system ...
Fajun Yu, Shuo Feng, Yanyu Zhao
doaj   +3 more sources

Overview of the Kadomtsev–Petviashvili-hierarchy reduction method for solitons

open access: yesPartial Differential Equations in Applied Mathematics, 2022
The Kadomtsev–Petviashvili (KP) hierarchy reduction method is a prominent direct method for deriving explicit solutions to integrable equations. This method is based on Hirota’s bilinear formulation of integrable systems, as well as the observation that ...
Bo Yang, Jianke Yang
doaj   +1 more source

INTEGRABLE HIERARCHIES AND DISPERSIONLESS LIMIT [PDF]

open access: yesReviews in Mathematical Physics, 1995
Analogues of the KP and the Toda lattice hierarchy called dispersionless KP and Toda hierarchy are studied. Dressing operations in the dispersionless hierarchies are introduced as a canonical transformation, quantization of which is dressing operators of the ordinary KP and Toda hierarchy.
Takasaki, Kanehisa, Takebe, Takashi
openaire   +3 more sources

Witten’s D 4 integrable hierarchies conjecture [PDF]

open access: yesChinese Annals of Mathematics, Series B, 2016
We prove that the total descendant potential functions of the theory of Fan-Jarvis-Ruan-Witten for D_4 with symmetry group and D_4^T with symmetry group G_{max}, respectively, are both tau-functions of the D_4 Kac-Wakimoto/Drinfeld-Sokolov hierarchy.
Fan, Huijun   +4 more
openaire   +2 more sources

A multi-component super integrable Dirac hierarchy

open access: yesPhysics Letters B, 2023
We propose a method for generating higher-dimensional nonisospectral super integrable coupling hierarchies associated with a new type of higher-dimensional Lie superalgebra.
Haifeng Wang   +2 more
doaj   +1 more source

Hamiltonian structures for integrable hierarchies of Lagrangian PDEs [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics, 2021
Many integrable hierarchies of differential equations allow a variational description, called a Lagrangian multiform or a pluri-Lagrangian structure. The fundamental object in this theory is not a Lagrange function but a differential $d$-form that is ...
Mats Vermeeren
doaj   +1 more source

Generating of Nonisospectral Integrable Hierarchies via the Lie-Algebraic Recursion Scheme

open access: yesMathematics, 2020
In the paper, we introduce an efficient method for generating non-isospectral integrable hierarchies, which can be used to derive a great many non-isospectral integrable hierarchies.
Haifeng Wang, Yufeng Zhang
doaj   +1 more source

Topological Strings and Integrable Hierarchies [PDF]

open access: yesCommunications in Mathematical Physics, 2005
We consider the topological B-model on local Calabi-Yau geometries. We show how one can solve for the amplitudes by using W-algebra symmetries which encodes the symmetries of holomorphic diffeomorphisms of the Calabi-Yau. In the highly effective fermionic/brane formulation this leads to a free fermion description of the amplitudes. Furthermore we argue
Aganagic, M.   +4 more
openaire   +5 more sources

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