sigma10-049. 719KB Jun 04 2011 12:10:40 AM
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d = 2 one could try to study the case of resonant frequencies, not with stability methods (which fail because of the degeneracy of the unperturbed eigenvalues), but proving the
The Darboux dressing matrix obtained depends just on one set of variables because of the so-called spectrality property in- troduced by E.. In the end we mention some
In this paper we study the level set structure of a one-dimensional cellular automaton known as the periodic box-ball system (pBBS) [ 2 , 3 ] and construct its invariant tori.. It
Another consequence of the presence of punctures is that in the moduli space case the underlying ribbon graph needs extra decorations marking possible punctures and one cannot
The action ( 2.6 ) leads to 13 tree level vertices whose rather lengthy expressions are listed in Appendix A. all vertices with one B, one ¯ B and an arbitrary number of A legs
On a general basis, let us emphasize that noncommutative quantum field theories (for a gene- ral review, see for example [ 5 ]) can be interpreted as limits of matrix models or
We formulate these systems by cluster algebras, which turn out to be of finite type, and prove their periodicities and the associated dilogarithm identities which have been
Using the harmonic oscillator Hamil- tonian as the initial one, we obtain the expressions of the potentials of isospectral Hamiltonians and wave functions for the case of exact
