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An equational approach to products of relatively regular operators. (English) Zbl 0348.47010


MSC:

47A50 Equations and inequalities involving linear operators, with vector unknowns
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References:

[1] F. W. Atkinson,On relatively regular operators. Acta Sci. Math. (Szeged)15 (1953), 38–56. · Zbl 0052.12502
[2] R. Bouldin,The product of operators with closed range. Tôhoku Math. J.25 (1973), 359–363. · Zbl 0269.47002 · doi:10.2748/tmj/1178241337
[3] T. L. Boullion andP. L. Odell,Generalized inverse matrices. Wiley-Interscience, New York, 1971. · Zbl 0223.15002
[4] S. R. Caradus,Mapping properties of relatively regular operators. Proc. Amer. Math. Soc.47 (1975), 409–412. · Zbl 0295.47016 · doi:10.1090/S0002-9939-1975-0353022-9
[5] J. J. Koliha,Convergent and stable operators and their generalization. J. Math. Anal. Appl.43 (1973), 778–794. · Zbl 0264.47016 · doi:10.1016/0022-247X(73)90292-8
[6] S. Goldberg,Unbounded linear operators. McGraw-Hill, New York, 1966. · Zbl 0148.12501
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