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On a characterization of the essential spectra of the sum and the product of two operators

✍ Scribed by Faiçal Abdmouleh; Salma Charfi; Aref Jeribi

Book ID
113721469
Publisher
Elsevier Science
Year
2012
Tongue
English
Weight
165 KB
Volume
386
Category
Article
ISSN
0022-247X

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📜 SIMILAR VOLUMES

Remarks on two fixed-point theorems invo
Remarks on two fixed-point theorems involving the sum and the product of two operators
✍ B.C. Dhage 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 416 KB

In this article, we focus our attention on two fixed-point theorems of Krasnoselskii [l] and Dhage [2]. It is shown that some of the hypotheses of these fixed-point theorems are redundent. Our claim is also illustrated with an example.