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Mandel’s Q-parameters for the outcoming atom statistics of a micromaser

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  1. Article

    Open Access

    Graded Symmetry Algebras of Time-Dependent Evolution Equations and Application to the Modified KP Equations

    By starting from known graded Lie algebras, including Virasoro algebras, new kinds of time-dependent evolution equations are found possessing graded symmetry algebras. The modified KP equations are taken as an...

    Wen-**u Ma, R. K. Bullough, P. J. Caudrey in Journal of Nonlinear Mathematical Physics (1997)

  2. Article

    Open Access

    Symmetries of the Classical Integrable Systems and 2-Dimensional Quantum Gravity: a ‘Map’

    We draw attention to the connections recently established by others between the classical integrable KdV and KP hierarchies in 1 + 1 and 2 + 1 dimensions respectively and the matrix models which relate to the ...

    R. K. Bullough, P. J. Caudrey in Journal of Nonlinear Mathematical Physics (1996)