Perturbation Theory for Quasinilpotents in Banach Algebras
In this paper, we prove the following result by perturbation technique. If <i>q</i> is a quasinilpotent element of a Banach algebra and spectrum of <inline-formula> <math display="inline"> <semantics> <mrow> <mi>p</mi> <mo>+</mo>...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-07-01
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| Series: | Mathematics |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2227-7390/8/7/1163 |