Abstract
It is established that under certain conditions a Schur complement in an EP matrix is as well an EP matrix. As an application a decomposition of a partitioned matrix into a sum of EP matrices is given.
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Meenakshi, A. On schur complements in an ep matrix. Period Math Hung 16, 193–200 (1985). https://doi.org/10.1007/BF01849842
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DOI: https://doi.org/10.1007/BF01849842