In a manifold V, a current T is said to be closed if bT=0. It is said to be homologous to zero if there exists a current S such that T = bS; in this case, we also say that T bounds S. Two currents are said to be homologous if their difference is homologous to zero1.
KeywordsCompact Support Homology Group Homology Class Duality Theorem Finite Chain
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