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1994-02-22
The Gauge Theory of the de-Sitter Group and Ashtekar Formulation
J. A. NietoO. ObregónJ. Socorro
文献摘要
By adding the Pontrjagin topological invariant to the gauge theory of the de Sitter group proposed by MacDowell and Mansouri we obtain an action quadratic in the field-strengths, of the Chern-Simons type, from which the Ashtekar formulation is derived.
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