Mohamed, Abderemane Régularité et théorie spectrale d’une classe d’équations différentielles singulières sur une demidroite. (French) Zbl 0388.35062 C. R. Acad. Sci., Paris, Sér. A 285, 761-763 (1977). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 35R20 Operator partial differential equations (= PDEs on finite-dimensional spaces for abstract space valued functions) 35P20 Asymptotic distributions of eigenvalues in context of PDEs 47F05 General theory of partial differential operators × Cite Format Result Cite Review PDF