2 papers
math.SP2007
Regular and Completely Regular Differential Operators
E. A. Shiryaev, A. A. Shkalikov
We define the concept of completely regular ordinary differential operators and give various criteria for operators to belong to this class. We give also criteria for Birkhof regul…
math.CA2004
Dissipative Boundary Conditions for Ordinary Differential Operators
E. A. Shiryaev
In this paper two theorems which describe dissipative boundary conditions for ordinary differential operators on a closed interval are proved. We also show that all these boundary…