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Published in 2022 at "Communications in Mathematical Physics"
DOI: 10.1007/s00220-022-04348-3
Abstract: In this paper we extensively study the notion of Hamiltonian structure for nonabelian differential-difference systems, exploring the link between the different algebraic (in terms of double Poisson algebras and vertex algebras) and geometric (in terms…
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Keywords:
hamiltonian structures;
difference;
poisson;
integrable nonabelian ... See more keywords
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Published in 2019 at "Applied Mathematical Modelling"
DOI: 10.1016/j.apm.2018.10.030
Abstract: Abstract A new lattice hierarchy is constructed from a discrete matrix spectral problem. By the Tu scheme technique, the associated Hamiltonian structures and infinitely many conservation laws of this hierarchy are derived. Then a symplectic…
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Keywords:
symplectic map;
lattice hierarchy;
new lattice;
darboux transformation ... See more keywords
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Published in 2021 at "Journal of the Mathematical Society of Japan"
DOI: 10.2969/jmsj/83858385
Abstract: In this paper, we treat moduli spaces of parabolic connections. We take \'etale coverings of the moduli spaces, and we construct a Hamiltonian structure of an algebraic vector field determined by the isomonodromic deformation for…
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Keywords:
parabolic connections;
moduli spaces;
isomonodromic deformations;
structures isomonodromic ... See more keywords
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Published in 2022 at "Symmetry"
DOI: 10.3390/sym14112259
Abstract: In this paper, we present new Hamiltonian operators for the integrable couplings of the Ablowitz–Kaup–Newell–Segur hierarchy and the Kaup–Newell hierarchy. The corresponding Hamiltonians allow nontrivial degeneration. Multi-Hamiltonian structures are investigated. The involutive property is proven…
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Keywords:
structures two;
hamiltonian structures;
integrable couplings;
two integrable ... See more keywords
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Published in 2018 at "Turkish Journal of Mathematics"
DOI: 10.3906/mat-1708-33
Abstract: We solve the equivalence problem for compatible bi-Hamiltonian structures on three-dimensional orientable manifolds via Cartan’s method of equivalence. The problem separates into two branches on total space, one of which ends up with the intransitive…
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Keywords:
equivalence;
equivalence problem;
problem compatible;
compatible hamiltonian ... See more keywords