Spectral Stability for Classical Periodic Waves of the Ostrovsky and Short Pulse Models. Issue 3 (28th February 2017)

• Record Type: Journal Article
• Authors: Hakkaev, S.; Stanislavova, M.; Stefanov, A.
• Is Part Of: Studies in applied mathematics. Volume 139:Issue 3(2017)
• Page Start: 405
• Page End: 433
• Publication Date: 2017-02-28
• Subjects: Mathematics -- Periodicals; Mathématiques -- Périodiques; Mathématique; Mathématique appliquée; Ressource Internet (Descripteur de forme); Périodique électronique (Descripteur de forme); 519
• DOI: 10.1111/sapm.12166
• Languages: English
• ISSNs: 0022-2526

Abstract

Abstract: We consider the Ostrovsky and short pulse models in a symmetric spatial interval, subject to periodic boundary conditions. For the Ostrovsky case, we rederive the formulas for the classical periodic traveling waves, while for the short pulse model, we explicitly construct traveling waves in terms of Jacobi elliptic functions. In both cases, we show spectral stability, for all values of the parameters. This is achieved by studying the nonstandard eigenvalue problems in the form L [ u ] = λ u ′, where L is a Hill operator.