Results 21 to 30 of about 132,792 (288)

Integrable hierarchies and the modular class [PDF]

open access: yesAnnales de l'Institut Fourier, 2008
It is well-known that the Poisson-Nijenhuis manifolds, introduced by Kosmann-Schwarzbach and Magri form the appropriate setting for studying many classical integrable hierarchies. In order to define the hierarchy, one usually specifies in addition to the Poisson-Nijenhuis manifold a bi-hamiltonian vector field.
Damianou, Pantelis A.   +1 more
openaire   +2 more sources

Integrable operators and squares of Hankel operators. [PDF]

open access: yes, 2008
Integrable operators arise in random matrix teory, where they describe the asymptotic distributions of large self-adjoint random matrices from the generalized unitary ensembles.
Blower, Gordon
core   +5 more sources

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

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   +6 more sources

Conformal Maps and Integrable Hierarchies [PDF]

open access: yesCommunications in Mathematical Physics, 2000
Let \(D\) be simply connected domain in the complex \(z\)-plane bounded by a simple analytic curve \(\Gamma\). The authors show that conformal maps \(D\) onto unit disk \(G_1=\{x \mid|z|
Wiegmann, P. B., Zabrodin, A.
openaire   +2 more sources

Integrable hierarchies and information measures [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2008
11 ...
Parwani, R.R., Pashaev, O.K.
openaire   +3 more sources

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

On integrable conservation laws [PDF]

open access: yes, 2014
We study normal forms of scalar integrable dispersive (non necessarily Hamiltonian) conservation laws via the Dubrovin-Zhang perturbative scheme. Our computations support the conjecture that such normal forms are parametrised by infinitely many arbitrary
Moro, Antonio   +2 more
core   +1 more source

A Hierarchy of Integral Operators

open access: yesRocky Mountain Journal of Mathematics, 1997
Let \(m\) and \(n\) be integers with \(m+n \geq 0\), \(m^2+ n^2>0\), we define functions \(K_{m,n}\) as follows: \[ K_{m,n} (z)= (-m)! (-1)^m \bigl[(n-1)! \pi\bigr]^{-1} z^{m-1} \overline z^{n-1} \quad \text{for} \quad m\leq 0, \] \[ K_{m,n} (z)= (-n)! (-1)^n\bigl[ (m-1)!
Begehr, Heinrich, Hile, G.N.
openaire   +2 more sources

On the structure of (2+1)-dimensional commutative and noncommutative integrable equations [PDF]

open access: yes, 2006
We develop the symbolic representation method to derive the hierarchies of (2+1)-dimensional integrable equations from the scalar Lax operators and to study their properties globally. The method applies to both commutative and noncommutative cases in the
Jing Ping Wang, Wang, Jing Ping
core   +1 more source

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