A note on eigenvalues of ordinary differential operators.

Título inglés A note on eigenvalues of ordinary differential operators.
Título español Nota sobre autovalores de operadores diferenciales ordinarios.
Autor/es Ho, Alan
Organización Dep. Math. Princeton Univ., Princeton (New Jersey), Estados Unidos
Revista 0213-2230
Publicación 1997, 13 (2): 403-410, 1 Ref.
Tipo de documento articulo
Idioma Inglés
Resumen inglés In this follow-up on the work of Fefferman-Seco [FS] an improved condition for the discrete eigenvalues of the operator -d2 / dx2 + V(x) is established for V(x) satisfying certain hypotheses. The eigenvalue condition in [FS] establishes eigenvalues of this operator to within a small error. Through an obervation due to C. Fefferman, the order of accuracy can be improved if a certain condition is true. This paper improves on the result obtained in [FS] by showing that this condition does indeed hold.
Clasificación UNESCO 120201
Palabras clave español Operadores diferenciales ; Autovalores
Código MathReviews MR1617641
Código Z-Math Zbl 0903.34071
Icono pdf Acceso al artículo completo