Spectral Picard–Vessiot fields for Algebro-geometric Schrödinger operators
Spectral Picard–Vessiot fields for Algebro-geometric Schrödinger operators
This work is a Galoisian study of the spectral problem LΨ=λΨ, for an algebro-geometric second order differential operators L, with coefficients in a differential field, whose field of constants C is algebraically closed and of characteristic zero. Our approach regards the spectral parameter λ as an algebraic variable over C, …