Results 261 to 270 of about 8,648 (287)

A NEW EXPANDING INTEGRABLE HIERARCHY OF KAUP–NEWELL HIERARCHY

Modern Physics Letters B, 2006
A higher loop algebra is constructed which is devoted to establish an isospectral Lax pair. Integrable coupling of the well-known Kaup–Newell hierarchy is obtained by using a relation of direct sum between two sub-algebras. As in the reduction case, an integrable coupling of a generalized MKdV equation is presented. The approach presented in the paper
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Integrable Hierarchy from Topological Gauge Theory

International Journal of Modern Physics A, 1997
By the recursion operator of nonlinear Schrödinger hierarchy, integrable models in 1+1 dimensions are related to the hierarchy of U(1) invariant gauge fixing constraints for the BF gauge theory. The loop algebra structure for the related linear problem with the spectral parameter as a constant valued, zero-strength gauge degree of freedom is derived.
Lee, Jyh-Hao, Pashaev, Oktay K.
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Modified bosonic integrable hierarchy

Journal of Geometry and Physics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yuanyuan Zhang, Jipeng Cheng, Shoufeng Shen, Juan Hu   +3 more
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SUPER INTEGRABLE HIERARCHY AND SUPER HAMILTONIAN STRUCTURES ASSOCIATED WITH GUO HIERARCHY

Modern Physics Letters B, 2009
A Lie superalgebra is constructed from which establishes an isospectral problems. By solving the zero curvature equation, a resulting super hierarchies of the Guo hierarchy are obtained. By making use of the super identity, the Hamiltonian structures of the above super integrable hierarchies are generated, this method can be used to other ...
Zhang, Ning, Dong, Huanhe
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Integrability Criterion of Geodesical Equivalence. Hierarchies

Acta Applicandae Mathematica, 1999
The subject of geodesically equivalent Riemannian metrics, i.e., metrics with the same geodesic lines, has a long history, beginning with \textit{U. Dini} [Brioschi Ann. (2) III, 269-294 (1870; JFM 02.0622.02)]. Because Riemannian metrics are produced by Hamiltonians in a straightforward manner, it results that the implications of geometry of such ...
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Hospital management: Integrating the dual hierarchy?

The International Journal of Health Planning and Management, 1991
AbstractTraditionally, hospitals are seen as dual hierarchies: in addition to the formal administrative pyramid, the professional medical system forms a second line of authority. Equally traditional, this poses substantial problems for hospital management.The present study reported in this article took place as part of a larger research project on ...
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Integral hierarchies and percolation

Physical Review B, 1985
, Klein, , Stell
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From integrable spatial discrete hierarchy to integrable nonlinear PDE hierarchy

2021
Hai-Qiong Zhao, Zuo-Nong Zhu
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Sasa–Satsuma type matrix integrable hierarchies and their Riemann–Hilbert problems and soliton solutions

Physica D: Nonlinear Phenomena, 2023
Wen-Xiu
exaly  

AKNS type reduced integrable bi-Hamiltonian hierarchies with four potentials

Applied Mathematics Letters, 2023
Wen-Xiu
exaly