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hep-th1993★ 8 cited

Generalized NLS Hierarchies from Rational Algebras

Francesco Toppan

Finite rational $\cw$ algebras are very natural structures appearing in coset constructions when a Kac-Moody subalgebra is factored out. In this letter we address the problem of re…

hep-th1993★ 6 cited

On Pentagon And Tetrahedron Equations

J. M. Maillet

We show that solutions of Pentagon equations lead to solutions of the Tetrahedron equation. The result is obtained in the spectral parameter dependent case.

hep-th1993★ 2 cited

Superhamiltonian formalism for theories

E. Ivanov, F. Toppan

We show how to formulate -dimensional supersymmetric theories, both massive and conformal, within a manifestly supersymmetric hamiltonian framework, via the introduction…

chao-dyn1993★ 37 cited

A Fredholm Determinant for Semi-classical Quantization

Predrag Cvitanović, Per E. Rosenqvist, Gábor Vattay +1

We investigate a new type of approximation to quantum determinants, the ``\qFd", and test numerically the conjecture that for Axiom A hyperbolic flows such determinants have a larg…

hep-th1993★ 10 cited

Rational algebras from composite operators

F. Delduc, L. Frappat, P. Sorba +2

Factoring out the spin subalgebra of a algebra leads to a new structure which can be seen either as a rational finitely generated algebra or as a polynomial n…

patt-sol1993

Discrete Breathers and Energy Localization in Nonlinear Lattices

T. Dauxois, M. Peyrard

We discuss the process by which energy, initially evenly distributed in a nonlinear lattice, can localize itself into large amplitude excitations. We show that, the standard modula…

hep-th1993

Quantum Loop Modules and Quantum Spin Chains

D. Altschuler, B. Davies

We construct level-0 modules of the quantum affine algebra $\Uq$, as the -deformed version of the Lie algebra loop module construction. We give necessary and sufficient conditio…

hep-th1993★ 12 cited

Valleys in String Foam Suppress Quantum Coherence

John Ellis N. E. Mavromatos, D. V. Nanopoulos

We exhibit string contributions to the $\nd{S}$ matrix relating in- and out- state density matrices that do not factorize as a product of and matrices. They are ass…

cond-mat1993★ 75 cited

A Renormalization Group Study of Helimagnets in D=2+EPSILON Dimensions

P. Azaria, B. Delamotte, F. Delduc +1

We study a non linear sigma model describing the phase transition of N-components helimagnets up to two loop order in dimensions. It i…

astro-ph1993★ 19 cited

Mass Spectrum and Velocity Dispersions During Planetesimals Accumulation - II - Fragmentation

P. Barge, R. Pellat

Fragmentation of the planetesimals is found to play a role whose importance is greater than previously believed and depends on the average characteristic size of the primordial pla…

cond-mat1993★ 82 cited

The Kagome Antiferromagnet with Defects: Satisfaction, Frustration, and Spin Folding in a Random Spin System

E. F. Shender, V. B. Cherepanov, P. C. W. Holdsworth +1

It is shown that site disorder induces noncoplanar states, competing with the thermal selection of coplanar states, in the nearest neighbor, classical kagome Heisenberg antiferroma…

hep-th1993★ 4 cited

N=2 Superconformal Affine Liouville Theory

E. Ivanov, F. Toppan

We present a new supersymmetric integrable model: the superconformal affine Liouville theory. It interpolates between the super Liouville and super sine-Gordon th…

hep-th1993★ 16 cited

Folding the W Algebras

L. Frappat, E. Ragoucy, P. Sorba

In the same way the folding of the Dynkin diagram of A_{2n} (resp. A_{2n-1}) produces the B_n (resp. C_n) Dynkin diagram, the symmetry algebra W of a Toda model based on B_n (resp.…

hep-th1993★ 55 cited

super KdV equation

F. Delduc, E. Ivanov

We construct supersymmetric KdV equation as a hamiltonian flow on the super Virasoro algebra. The KdV superfield, the hamiltonian and the related Poisson s…