Kostenko Aleksey Sergeevich

Publications in Math-Net.Ru

1. Matrix Schrödinger Operator with $\delta$-Interactions
   
   Mat. Zametki, 100:1 (2016),  59–77
2. Spectral Analysis of Indefinite Sturm–Liouville Operators
   
   Funktsional. Anal. i Prilozhen., 48:3 (2014),  88–92
3. One-dimensional Schrödinger operator with $\delta$-interactions
   
   Funktsional. Anal. i Prilozhen., 44:2 (2010),  87–91
4. On the Similarity of a $J$-Nonnegative Sturm–Liouville Operator to a Self-Adjoint Operator
   
   Funktsional. Anal. i Prilozhen., 43:1 (2009),  81–84
5. Similarity of Some $J$-Nonnegative Operators to Self-Adjoint Operators
   
   Mat. Zametki, 80:1 (2006),  135–138
6. Similarity of Indefinite Sturm–Liouville Operators with Singular Potential to a Self-Adjoint Operator
   
   Mat. Zametki, 78:1 (2005),  147–151
7. The Krein string and characteristic functions of non-self-adjoint operators
   
   Zap. Nauchn. Sem. POMI, 327 (2005),  115–134
8. Similarity of $\operatorname{sgn}x\bigl(-\frac{d^2}{dx^2}+c\delta\bigr)$ Type Operators to Normal and Self-adjoint Operators
   
   Mat. Zametki, 74:1 (2003),  134–139
9. On the Defect Index of Quadratic Self-Adjoint Operator Pencils
   
   Mat. Zametki, 72:2 (2002),  315–320