On one method for establishing a basis from double systems of exponentials

✍ Scribed by S.R. Sadigova

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 203 KB
• Volume: 24
• Category: Article
• ISSN: 0893-9659
• DOI: 10.1016/j.aml.2011.04.044

✦ Synopsis

A method for establishing a basis of double systems in Banach spaces is suggested. A concrete case of the system of exponentials with complex valued coefficients is considered. In particular, a final result for a perturbed system of exponentials is obtained.