Bulletin of the Korean Mathematical Society (대한수학회보)
- Volume 28 Issue 2
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- Pages.185-190
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- 1991
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- 1015-8634(pISSN)
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- 2234-3016(eISSN)
ALMOST INVERTIBILITY MODULO CLOSED IDEALS
- Kim, Yong-Tae (Department of Mathematics, Sung Kyun Kwan University) ;
- Lee, Woo-Young (Department of Mathematics, Sung Kyun Kwan University) ;
- Lee, Hae-Jin (Department of Mathematics, Sung Kyun Kwan University)
- Published : 1991.08.01
Abstract
The concept of "almost invertibility modulo closed ideals" in L(X, Y) was introduced, implicitly, by Robin Harte [1, Theorem 3.9.5]. The aims of this note are to make the formal definition of "almost left and right invertible modulo closed ideals" operators and show that they form open sets.they form open sets.
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