Abstract
Short waves in a periodic potential on a periodic strip in two dimensions are studied in the parameter range where the spectrum has banded structure. The exponentially precise EBK theory of Parts I and II is applied to a restricted class of such wave problems to indicate why their continuous spectra can be complicated and how the spectral structure can be elucidated quantitatively. The results indicate the direction in which the analog for partial differential equations of the basic Floquet theorem for ordinary differential equations may be found.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
