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On the approximation-solvability of equations involving $A$-proper and pseudo-$A$-proper mappings
Author(s):
W. V.
Petryshyn
Journal:
Bull. Amer. Math. Soc.
81
(1975),
223-312.
MSC (1970):
Primary 47A15, 47H10;
Secondary 39A40
MathSciNet review:
0388173
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DOI:
10.1090/S0002-9904-1975-13728-1
PII:
S 0002-9904(1975)13728-1
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