preprint · 2012
Improved asymptotics of the spectral gap for the Mathieu operator
The Mathieu operator {equation*} L(y)=-y"+2a \cos{(2x)}y, \quad a\in \mathbb{C},\;a\neq 0, {equation*} considered with periodic or anti-periodic boundary con...
2 citationsDOI: https://doi.org/10.48550/arxiv.1202.4623Open accessPDF reported by metadata