Some Classes of Entire Sequence of Modals

In the past decades, modal analysis has become a major technology in the quest for determining, improving and optimizing dynamic characteristics of engineering structures. Not only has it been recognized in mechanical and aeronautical engineering, but modal analysis has also been discovered in profound applications for civil and building structures, space structures, transportation and nuclear problems [4]. Shortly, modal analysis relies on mathematics to establish theoretical models for adynamic system and to analyze data in various forms. Since modals are used in different branches of engineering in order to contribute to modal analysis, we have constructed some sequence space of modal intervals. Also, we have given some new definitions and theorems about the sequence space of modals. 2010 Mathematics subject classification 46A 45