SciELO - Scientific Electronic Library Online

 
vol.16 númeroESPECIALMATRICES DE DIRAC EN REPRESENTACIÓN QUIRAL Y LA CONEXIÓN CON EL CAMPO ELÉCTRICO PARALELO AL CAMPO MAGNÉTICOCALIBRE QUIRAL PARA AUMENTAR EL COEFICIENTE DE RENDIMIENTO DE MOTORES MAGNÉTICOS índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Ingeniare. Revista chilena de ingeniería

versión On-line ISSN 0718-3305

Resumen

TORRES-SILVA, Héctor. MAXWELL EQUATIONS FOR A GENERALISED LAGRANGIAN FUNCTIONAL. Ingeniare. Rev. chil. ing. [online]. 2008, vol.16, n.especial, pp. 53-59. ISSN 0718-3305.  http://dx.doi.org/10.4067/S0718-33052008000400008.

This work deals with the problem of the construction of the Lagrange functional for an electromagnetic field. The generalised Maxwell equations for an electromagnetic field in free space are introduced. The main idea relies on the change of Lagrange function under the integral action. Usually, the Lagrange functional which describes the electromagnetic field is built with the quadrate of the electromagnetic field tensor . Such a quadrate term is the reason, from a mathematical point of view, for the linear form of the Maxwell equations in free space. The author does not make this assumption and nonlinear Maxwell equations are obtained. New material parameters of free space are established. The equations obtained are quite similar to the well-known Maxwell equations. The energy tensor of the electromagnetic field from a chiral approach to the Born Infeld Lagrangian is discussed in connection with the cosmological constant.

Palabras clave : Lagrange; action; Maxwell equations; Born Infeld.

        · resumen en Español     · texto en Inglés     · pdf en Inglés