The existence of Bogomolny decomposition for systems of some generalized nonlinear partial differential equations of second order
Abstract:
Using the concept of strong necessary conditions we seek the
Bogomolny decomposition for the systems of generalized hyperbolic and elliptic
NPDE's of the second order. The generalization means variable equation
coefficients depending on the field variables. As the results we derive
the conditions for the existence of the Bogomolny relationships. As an
example of illustration we present a solution for the 2d static easy axis
Heisenberg model.