Посилання:Generalized Resolvents of Symmetric Relations Generated on Semi-Axis by a Differential Expression and a Nonnegative Operator Function / V.M. Bruk // Журнал математической физики, анализа, геометрии. — 2006. — Т. 2, № 4. — С. 372-387. — Бібліогр.: 11 назв. — англ.
Generalized resolvents of a minimal symmetric relation generated on the semi-axis by a formally selfadjoint di erential expression and a nonnegative operator function are described.