Representation of solutions of general linear differential systems of the second order
Ondřej Došlý (1985)
Czechoslovak Mathematical Journal
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Ondřej Došlý (1985)
Czechoslovak Mathematical Journal
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Ondřej Došlý (1985)
Archivum Mathematicum
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Ivana M. Radojević (2014)
Czechoslovak Mathematical Journal
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In this paper we study -EP matrices, as a generalization of EP-matrices in indefinite inner product spaces, with respect to indefinite matrix product. We give some properties concerning EP and -EP matrices and find connection between them. Also, we present some results for reverse order law for Moore-Penrose inverse in indefinite setting. Finally, we deal with the star partial ordering and improve some results given in the “EP matrices in indefinite inner product spaces” (2012), by...