Finite expansion of the inverse matrix in the polarization propagator method

An alternative theoretical approach to the polarization propagator based on a new finite expansion of a finite-dimensional matrix is presented. The general equations for such an expansion are derived and the validity conditions stated. This method is used to accomplish an approximate scheme for the...

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Detalles Bibliográficos
Autor principal:	Cavasotto, C.N.
Formato:	JOUR
Materias:	Inverse matrix Particle-hole propagator Polarization propagator Self-energy
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_1432881X_v104_n6_p491_Cavasotto
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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