On Riescz bases of eigenfunction of $2$-nd order differential operator with involution and integral boundary conditions
V. P. Kurdyumov

This publication is cited in the following articles:

1. Ya. A. Granilshchikova, A. A. Shkalikov, “Spectral properties of a differential operator with involution”, Moscow University Mathematics Bulletin, Moscow University Mеchanics Bulletin, 77:4 (2022), 204–208      
2. D. M. Polyakov, “Spectral Asymptotics of Two-Term Even Order Operators with Involution”, J Math Sci, 260:6 (2022), 806  
3. Kritskov V L. Ioffe V.L., “Spectral Properties of the Cauchy Problem For a Second-Order Operator With Involution”, Differ. Equ., 57:1 (2021), 1–10          
4. P. I. Kalenyuk, Ya. O. Baranetskij, L. I. Kolyasa, “A nonlocal problem for a differential operator of even order with involution”, J. Appl. Anal., 26:2 (2020), 297–307          
5. Ya.O. Baranetskij, P.I. Kalenyuk, M. I. Kopach, A.V. Solomko, “The nonlocal problem with multi- point perturbations of the boundary conditions of the Sturm-type for an ordinary differential equation with involution of even order”, Mat. Stud., 54:1 (2020), 64  
6. V. E. Vladykina, A. A. Shkalikov, “Regular Ordinary Differential Operators with Involution”, Math. Notes, 106:5 (2019), 674–687            
7. A. Sh. Shaldanbayev, M. B. Ivanova, A. N. Urmatova, A. A. Shaldanbayeva, “Spectral decomposition of a first order functional differential operator”, News Natl. Acad. Sci. Rep. Kazakhstan-Ser. Phys.-Math., 6:328 (2019), 90–105    
8. A. Sh. Shaldanbayev, S. M. Shalenova, M. B. Ivanova, A. A. Shaldanbayeva, “On spectral properties of a boundary value problem of the first order equation with deviating argument”, News Natl. Acad. Sci. Rep. Kazakhstan-Ser. Phys.-Math., 5:327 (2019), 19–39    
9. L. V. Kritskov, A. M. Sarsenbi, “Riesz basis property of system of root functions of second-order differential operator with involution”, Diff Equat, 53:1 (2017), 33