arXiv subjects

Wen-Xiu MA

Publications and source records attributed to Wen-Xiu MA.

2 recordsLinked to original sources

arXiv1998

Extension of Hereditary Symmetry Operators

Two models of candidates for hereditary symmetry operators are proposed and thus many nonlinear systems of evolution equations possessing infinitely many commutative symmetries may be generated. Some concrete structures of hereditary symmetry operators are carefully analyzed on the base of the resulting general conditions and several corresponding nonlinear systems are explicitly given out as illustrative examples.

solv-int↗

arXiv1996

Coupled Integrable Systems Associated with a Polynomial Spectral Problem and their Virasoro Symmetry Algebras

An isospectral hierarchy of commutative integrable systems associated with a polynomial spectral problem is proposed. The resulting hierarchy possesses a recursion structure controlled by a hereditary operator. The nonisospectral flows generate the time first order dependent symmetries of the isospectral hierarchy, which constitute Virasoro symmetry algebras together with commutative symmetries.

solv-int↗