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Dmitriy Yu. Shabalkin

Publications and source records attributed to Dmitriy Yu. Shabalkin.

2 recordsLinked to original sources

On the method of effective nonlinear sigma model in plane- and axially-symmetric vacuum spacetimes

In present article effective nonlinear sigma model (NSM) is considered. Einstein equation solution, corresponded to the chiral fields determined by functional parameter method, are presented. Effective NSM of stationary axially-symmetric gravitational field is constructed. Motion equations are solved exactly by functional parameter method. Einstein equations solution are constructed. For particular dependences of functional parameter graphics of solutions are presented. Metric coefficients behaviour is shown to be similar as functional parameter one.

gr-qc

Effective chiral model of a plane-symmetric gravitational field: properties and exact solutions

An effective chiral model of a plane-symmetric gravitational field is considered. Isometries of the target space of the model are described and exact solutions corresponding to the isometric ansatz method are obtained. New exact solutions are found using the method of functional parameters. The solutions obtained are Bäcklund transforms of solutions of the d'Alembert equation to those of the Einstein equations.

gr-qc