Frits Beukers
Publications:
Beukers F.
Unitary Monodromy of Lamé Differential Operators
2007, vol. 12, no. 6, pp. 630-641
Abstract
The classical second order Lamé equation contains a so-called accessory parameter $B$. In this paper we study for which values of $B$ the Lamé equation has a monodromy group which is conjugate to a subgroup of $SL(2, \mathbb{R})$ (unitary monodromy with indefinite hermitian form). We reformulate the problem as a spectral problem and give an asymptotic expansion for the spectrum.
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