Results 21 to 30 of about 504 (258)

The N-species integrable Volterra system as a maximally superintegrable Hamiltonian system [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
The results presented in this paper are a natural development of those described in the paper {\it The Volterra Integrable case. Novel analytical and numerical results} (OCNMP Vol.4 (2024) pp 188-211), where the authors reconsidered the integrable case ...
Orlando Ragnisco, Federico Zullo
doaj   +1 more source

Integrable viscous conservation laws [PDF]

open access: yes, 2015
We propose an extension of the Dubrovin-Zhang perturbative approach to the study of normal forms for non-Hamiltonian integrable scalar conservation laws. The explicit computation of the first few corrections leads to the conjecture that such normal forms
Moro, Antonio   +2 more
core   +1 more source

SKdV, SmKdV flows and their supersymmetric gauge-Miura transformations [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
The construction of Integrable Hierarchies in terms of zero curvature representation provides a systematic construction for a series of integrable non-linear evolution equations (flows) which shares a common affine Lie algebraic structure. The integrable
Y. F. Adans   +4 more
doaj   +1 more source

Pseudo-differential equations, and the Bethe ansatz for the classical Lie algebras [PDF]

open access: yes, 2007
The correspondence between ordinary differential equations and Bethe ansatz equations for integrable lattice models in their continuum limits is generalised to vertex models related to classical simple Lie algebras.
Dunning, Clare   +4 more
core   +1 more source

Integrable discretization of recursion operators and unified bilinear forms to soliton hierarchies [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
In this paper, we give a procedure for discretizing recursion operators by utilizing unified bilinear forms within integrable hierarchies. To illustrate this approach, we present unified bilinear forms for both the AKNS hierarchy and the KdV hierarchy ...
Xingbiao Hu, Guofu Yu, Yingnan Zhang
doaj   +1 more source

Degree growth of lattice equations defined on a 3x3 stencil [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
We study complexity in terms of degree growth of one-component lattice equations defined on a $3\times 3$ stencil. The equations include two in Hirota bilinear form and the Boussinesq equations of regular, modified and Schwarzian type. Initial values are
Jarmo Hietarinta
doaj   +1 more source

Two-fold degeneracy of a class of rational Painlev\'e V solutions [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
We present a construction of a class of rational solutions of the Painlev\'e V equation that exhibit a two-fold degeneracy, meaning that there exist two distinct solutions that share identical parameters.
H. Aratyn   +3 more
doaj   +1 more source

Potentialisations of a class of fully-nonlinear symmetry-integrable evolution equations [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
We consider here the class of fully-nonlinear symmetry-integrable third-order evolution equations in 1+1 dimensions that were proposed recently in the journal Open Communications in Nonlinear Mathematical Physics, vol. 2, 216--228 (2022).
Marianna Euler, Norbert Euler
doaj   +1 more source

The Volterra Integrable case. Novel analytical and numerical results [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics
In the present paper we reconsider the integrable case of the Hamiltonian $N$-species Volterra system, as it has been introduced by Vito Volterra in 1937 and significantly enrich the results already published in the ArXiv in 2019 by two of the present ...
M. Scalia   +3 more
doaj   +1 more source

The Yang-Baxter paradox [PDF]

open access: yes, 2021
Consider the statement "Every Yang-Baxter integrable system is defined to be exactly-solvable". To formalise this statement, definitions and axioms are introduced.
Links, Jon, Jon Links
core   +1 more source

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