Results 1 to 10 of about 137,094 (294)

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
exaly   +4 more sources

Duality of positive and negative integrable hierarchies via relativistically invariant fields

open access: yesJournal of High Energy Physics, 2021
It is shown that the relativistic invariance plays a key role in the study of integrable systems. Using the relativistically invariant sine-Gordon equation, the Tzitzeica equation, the Toda fields and the second heavenly equation as dual relations, some ...
Qingping Liu, Senyue Lou
exaly   +2 more sources

Integrable nonlinear perturbed hierarchies of NLS-mKdV equation and soliton solutions [PDF]

open access: yesElectronic Journal of Differential Equations, 2022
We propose three spectral problems for NLS-mKdV equation by combining three integrable coupling ways. Then we obtain three nonlinear perturbation terms to derive three integrable nonlinear perturbed hierarchies of the NLS-mKdV equation.
Qiulan Zhao   +3 more
doaj   +2 more sources

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   +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

Using Vector-Product Loop Algebra to Generate Integrable Systems

open access: yesAxioms, 2023
A new three-dimensional Lie algebra and its loop algebra are proposed by us, whose commutator is a vector product. Based on this, a positive flow and a negative flow are obtained by introducing a new kind of spectral problem expressed by the vector ...
Jian Zhang   +3 more
doaj   +1 more source

A new construction of the Drinfeld–Sokolov hierarchies

open access: yesPartial Differential Equations in Applied Mathematics, 2022
The Drinfeld–Sokolov hierarchies are integrable hierarchies associated with every affine Lie algebra. We present a new construction of such hierarchies, which only requires the computations of a formal Laurent series.
Paolo Casati
doaj   +1 more source

Generating nonisospectral integrable hierarchies via a new scheme

open access: yesAdvances in Difference Equations, 2020
In the paper, an efficient and straightforward method for generating nonisospectral integrable hierarchies is introduced. It follows that we consider the application related to Lie algebra gl ( 3 ) $\operatorname{gl}(3)$ based on the method.
Haifeng Wang, Yufeng Zhang
doaj   +1 more source

Deformation conjecture: deforming lower dimensional integrable systems to higher dimensional ones by using conservation laws

open access: yesJournal of High Energy Physics, 2023
Utilizing some conservation laws of (1+1)-dimensional integrable local evolution systems, it is conjectured that higher dimensional integrable equations may be regularly constructed by a deformation algorithm.
S. Y. Lou, Xia-zhi Hao, Man Jia
doaj   +1 more source

Integrable coupled massive Thirring model with field values in a Grassmann algebra

open access: yesJournal of High Energy Physics, 2023
A coupled massive Thirring model of two interacting Dirac spinors in 1 + 1 dimensions with fields taking values in a Grassmann algebra is introduced, which is closely related to a SU(1) version of the Grassmannian Thirring model also introduced in this ...
B. Basu-Mallick   +3 more
doaj   +1 more source

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