Invariance of IDS under Darboux transformation and its application

53 mins 51 secs,  193.78 MB,  WebM  640x360,  29.97 fps,  44100 Hz,  491.31 kbits/sec
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Description: Kotani, S (Kwansei Gakuin University)
Wednesday 24 June 2015, 11:30-12:30
 
Created: 2015-06-30 16:37
Collection: Periodic and Ergodic Spectral Problems
Publisher: Isaac Newton Institute
Copyright: Kotani, S
Language: eng (English)
Distribution: World     (downloadable)
Explicit content: No
Aspect Ratio: 16:9
Screencast: No
Bumper: UCS Default
Trailer: UCS Default
 
Abstract: The integrated density of states (IDS) is a crucial quantity for studying spectral properties of ergodic Schroedinger opearators. Especially in one dimension it determines most of the spectral properties. On the other hand, in relation to completely integrable systems, Darboux transformation has been investigated from various points of views. In this talk the invariance of IDS under Darboux transformation will be shown, and as a byproduct the invariance of IDS under KdV flow will be remarked.
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