The almost periodic Gauge Transform: an abstract scheme with applications to Dirac operators
The almost periodic Gauge Transform: an abstract scheme with applications to Dirac operators
One of the main tools used to understand both qualitative and quantitative spectral behaviour of periodic and almost periodic Schrödinger operators is the gauge transform method. In this paper, we extend this method to an abstract setting, thus allowing for greater flexibility in its applications that include, among others, matrix-valued …