RETRACTED: On stability of discrete-time interval matrices

摘要

This article has been retracted at the request of the Editor-in-Chief. Please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).Reason: It is clear for all to see that this article is a close copy of the earlier article: H. Bulgak: Pseudoeigenvalues, spectral portrait of a matrix and their connections with different criteria of Stability. In: Error Control and Adaptivity in Scientific Computing; H. Bulgak and C. Zenger, Eds., Kluwer (1999) 95–124. Large passages are copied word-for-word, without explanation of what is known and what is new. This is a clear violation of the rules of practice in scientific work, generally accepted by the scientific community.It is hence my editorial duty to herewith offer, together with our reviewers, our sincerest apologies to Prof. H. Bulgak, to our readership and to the mathematical community at large, for not having detected this most unfortunate case of copying/plagiarism during the review process.