Sergii M. Chuiko

Position, Degree: Doctor of Physical and Mathematical Sciences, Professor

Position: Leading Researcher

E-mail:

Research Fields: Linear and nonlinear boundary value problems for systems ordinary differential, differential-algebraic, integral-differential and difference equations, systems with delay.

 

Personal profiles:

 

1981 – Slaviansk state pedagogical Institute, student of physics-mathematical faculty, 1976-1981.

1993  – Institute of Geophysics of the National Academy of Sciences of Ukraine, Kyiv, 1991 – 1993. 

1993 – Ph.D. (Phys. & Math. Sc.), Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv.

2009  – Doctor of Sciences (Phys. & Math.), Institute of Mathematics of the National Academy of Sciences of Ukraine, Kyiv.

1998 – at  present  Donbass State Pedagogical University, Head of chair Mathematics and Informatics.

2022 – at  present CSC-DMP, Max-Planck-Institut Magdeburg, Germany.

1987 – 1998, Slaviansk State Pedagogical Institute as an assistant and associate professor.

1991 – 1993, studied at the postgraduate level of the Department of Explosion Geodynamics of the Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine.

1998 – 2012, head of the Department of Economic and Mathematical Disciplines.

2002 – 2012, vice-rector for educational, scientific and pedagogical, and research work.

2010, received the academic title of professor.

2009 – 2012, worked as the acting rector of the Slaviansk State Pedagogical University.

2004 – Badge “Excellent Educationist of Ukraine”;

2007 – Badge “Vasyl Sukhomlynsky”;

2017 – Badge “For Scientific Achievements”.

S.M. Chuiko, O.V. Nesmelova, V.O. Kuzmina
ON REGULARIZATION OF AN INTEGRO-DIFFERENTIAL BOUNDARY VALUE PROBLEM UNSOLVED WITH RESPECT TO THE DERIVATIVE, BY PERTURBING THE BOUNDARY CONDITION // Journal of Mathematical Sciences (United States). – 2026. – Vol. 299. – No. 1. – P. 1–10. DOI: 10.1007/s10958-026-08394-3

O. Boichuk ,  S. Chuiko, V. Chuiko
Adomian Decomposition Method in the Theory of Nonlinear Boundary-Value Problems with Delay Under the Conditions of Parametric Resonance // Ukrainian Mathematical Journal. – 2026. – Vol. 78. – No. 3. DOI: 10.1007/s11253-026-02578-5

S.M. Chuiko, O.V. Nesmelova, K.S. Shevtsova
PERIODIC PROBLEM FOR A LIÈNARD-TYPE EQUATION WITH SWITCHINGS AT NON-FIXED POINTS IN TIME // Journal of Mathematical Sciences (United States). – 2025. – Vol. 292. – No. 4. – P. 439–452. DOI: 10.1007/s10958-025-07931-w

P. Benner, S. Chuiko, O. Nesmelova 
ADOMIAN DECOMPOSITION METHOD IN THE THEORY OF NONLINEAR BOUNDARY-VALUE PROBLEMS UNSOLVED WITH RESPECT TO THE DERIVATIVE // Journal of Mathematical Sciences (United States). – 2025. – Vol. 295. – No. 5. – P. 493–507.
DOI: 10.1007/s10958-026-08200-0

P. Benner, S. Chuiko, O. Nesmelova 
AUTONOMOUS PERIODIC BOUNDARY-VALUE PROBLEMS WITH SWITCHINGS AT NONFIXED TIMES // Journal of Mathematical Sciences (United States). – 2025. – Vol. 295. – No. 6. – P. 673–698. DOI: 10.1007/s10958-026-08216-6

O. Boichuk, S. ChuikoV. Chuiko
ADOMIAN DECOMPOSITION METHOD IN THE THEORY OF PROBLEMS INVERSE TO NONLINEAR BOUNDARY-VALUE PROBLEMS WITH DELAY // Journal of Mathematical Sciences (United States). – 2025. – Vol. 291. – No. 6. – P. 919–932. DOI: 10.1007/s10958-025-07868-0

P. Benner, S. ChuikoV. Chuiko
LEAST SQUARES METHOD IN THE THEORY OF NONLINEAR PERIODIC BOUNDARY VALUE PROBLEMS WITH CONCENTRATED DELAY // Functional Differential Equations. – 2025. – Vol. 32. – No. 1-2. – P. 7–35. DOI: 10.26351/FDE/32/1-2/1

S. ChuikoY. Silin, K. Shevtsova
ADOMIAN DECOMPOSITION METHOD IN THE THEORY OF AUTONOMOUS NONLINEAR BOUNDARY-VALUE PROBLEMS WITH SWITCHINGS AT NONFIXED POINTS OF TIME // Journal of Mathematical Sciences (United States). – 2025. – Vol. 294. – No. 4. – P. 633–649. DOI: 10.1007/s10958-025-08121-4

S. ChuikoO. Chuiko, D. Diachenko
Autonomous Boundary-Value Problem Unsolved with Respect to the Derivative // Journal of Mathematical Sciences (United States). – 2025. – Vol. 287. – No. 3. – P. 519–532. DOI: 10.1007/s10958-025-07619-1

P. Benner, S. Chuiko,   A.L. Zuyev 
Iterative Schemes for Periodic Boundary-Value Problems with Switchings // Journal of Mathematical Sciences (United States). – 2024. – Vol. 278. – No. 6. – P. 932–949. DOI: 10.1007/s10958-024-06972-x

O. Boichuk,  S. Chuiko, D. Diachenko
Adomian’s Decomposition Method in the Theory of Nonlinear Autonomous Boundary-Value Problems // Ukrainian Mathematical Journal. – 2024. – Vol. 75. – No. 8. – P. 1203–1218. DOI: 10.1007/s11253-023-02256-w

S. ChuikoO. Chuiko, D. Diachenko 
On Approximate Solutions of a Nonlinear Periodic Boundary-Value Problem with Switching in the Case of Parametric Resonance by the Newton–Kantorovich Method // Journal of Mathematical Sciences (United States). – 2024. – Vol. 279. – No. 3. – P. 438–453. DOI: 10.1007/s10958-024-07023-1

S.M. ChuikoO.V. Nesmelova 
On the reduction of an autonomous nonlinear boundary value problem unsolved with respect to the derivative to the first-order critical case // Journal of Mathematical Sciences (United States). – 2024. – Vol. 279. – No. 1. – P. 1–21. DOI: 10.1007/s10958-024-06984-7

O. Boichuk, S. Chuiko, M. Popov 
Adomian Decomposition Method in the Theory of Nonlinear Boundary-Value Problems // Ukrainian Mathematical Journal. – 2024. – Vol. 76. – No. 6. – P. 923–936. DOI: 10.1007/s11253-024-02363-2

S. ChuikoO. Nesmelova
Periodic Boundary-Value Problem for a Rayleigh-Type Equation Unsolved with Respect to the Derivative // Ukrainian Mathematical Journal. – 2024. – Vol. 75. – No. 10. – P. 1621–1633. DOI: 10.1007/s11253-024-02282-2

P. Benner, S. Chuiko, V. Chuiko
Adomian Decomposition Method in The Theory of Nonlinear Periodic Boundary Value Problems with Delay // CEUR Workshop Proceedings. – 2023. – Vol. 3687. – P. 98–106. https://ceur-ws.org/Vol-3687/Short_2.pdf

D. Khusainov, S. Chuiko, O. Nesmelova, D. Diachenko
A Nonlinear Autonomous Boundary Value Problem for a Non-Degenerate Differential-Algebraic System // CEUR Workshop Proceedings. – 2023. – Vol. 3746. – P. 90–95 https://ceur-ws.org/Vol-3746/Short_2.pdf

S.M. ChuikoO.V. Nesmelova, K.S. Shevtsova 
Differential-Algebraic Boundary-Value Problems with Impulsive Action // Journal of Mathematical Sciences (United States). – 2023. – Vol. 273. – No. 2. – P. 316–331. DOI: 10.1007/s10958-023-06500-3

S.M. ChuikoO.V. Nesmelova, V.O. Kuz’mina 
Generalized Green’s operator of the matrix integral-differential boundary value problem unsolved with respect to the derivative // Journal of Mathematical Sciences (United States). – 2023. – Vol. 276. – No. 5. – P. 603–613. DOI: 10.1007/s10958-023-06785-4

S.M. ChuikoO.S. Chuiko, M.V. Popov 
Adomian Decomposition Method in the Theory of Nonlinear Boundary-Value Problems // Journal of Mathematical Sciences (United States). – 2023. – Vol. 277. – No. 2. – P. 338–351. DOI: 10.1007/s10958-023-06837-9

S.M. ChuikoK.S. Shevtsova
Solvability conditions for nonlinear matrix equations // Journal of Mathematical Sciences (United States). – 2023. – Vol. 270. – No. 3. – P. 407–419. DOI: 10.1007/s10958-023-06354-9

O.A. Boichuk, S.M. ChuikoV.O. Kuzmina
Nonlinear Integrodifferential Boundary-Value Problems with Deviating Argument Unsolved with Respect to the Derivative // Ukrainian Mathematical Journal. – 2023. – Vol. 74. – No. 9. – P. 1334–1347. DOI: 10.1007/s11253-023-02139-0

P. Benner, S. ChuikoA. Zuyev
A periodic boundary value problem with switchings under nonlinear perturbations // Boundary Value Problems. – 2023. – Vol. 2023. – No. 1. DOI: 10.1186/s13661-023-01734-1

S.M. ChuikoO.V. Chuiko, V.O. Kuzmina 
Nonlinear Integrodifferential Boundary-Value Problems Unsolvable with Respect to the Derivative // Journal of Mathematical Sciences (United States). – 2023. – Vol. 270. – No. 2. – P. 385–395. DOI: 10.1007/s10958-023-06352-x

P. Benner,   S. ChuikoO. Nesmelova 
Least-Squares Method in the Theory of Nonlinear Boundary-Value Problems Unsolved with Respect to the Derivative // Ukrainian Mathematical Journal. – 2023. – Vol. 75. – No. 1. – P. 40–55. DOI: 10.1007/s11253-023-02184-9

O. Boichuk, S. ChuikoO. Nesmelova
ON A REDUCTION OF A NONLINEAR AUTONOMOUS BOUNDARY-VALUE PROBLEM TO A CRITICAL CASE OF THE FIRST ORDER // Miskolc Mathematical Notes. – 2023. – Vol. 24. – No. 1. – P. 105–117. DOI: 10.18514/MMN.2023.3930

S.M. ChuikoO.V. Nesmelova, Y.V. Kalinichenko
Conditions of Solvability of the Problem Inverse to the Cauchy Problem for a Difference-Algebraic Equation // Journal of Mathematical Sciences (United States). – 2023. – Vol. 272. – No. 2. – P. 316–329. DOI: 10.1007/s10958-023-06419-9

S.M. Chuiko 
A Differential-Algebraic Boundary Value Constant-Delay Problem in the Case of a Variable-Rank Matrix at the Derivative // Russian Mathematics. – 2022. – Vol. 66. – No. 6. – P. 54–64. DOI: 10.3103/S1066369X22060020

A.A. Boichuk, S.M. Chuiko
On the Approximate Solution of Weakly Nonlinear Boundary-Value Problems by the Newton–Kantorovich Method // Journal of Mathematical Sciences (United States). – 2022. – Vol. 261. – No. 2. – P. 228–240. DOI: 10.1007/s10958-022-05748-5

S.M. ChuikoO.V. Chuiko, Y.V. Kalinichenko 
Nonlinear Difference-Algebraic Boundary-Value Problem in the Case of Parametric Resonance // Journal of Mathematical Sciences (United States). – 2022. – Vol. 265. – No. 4. – P. 703–717. DOI: 10.1007/s10958-022-06078-2

S.M. ChuikoO.V. Chuiko, V.O. Kuz’mina
Solutions of the Boundary-Value Problem for a Matrix Integrodifferential Equation with Degenerate Kernel // Journal of Mathematical Sciences (United States). – 2022. – Vol. 263. – No. 2. – P. 341–349. DOI: 10.1007/s10958-022-05929-2

S.M. Chuiko
Conditions for the Solvability of the Problem Inverse to the Linear Autonomous Noether Boundary-Value Problem // Journal of Mathematical Sciences (United States). – 2022. – Vol. 268. – No. 2. – P. 147–156. DOI: 10.1007/s10958-022-06188-x

A.A.Boichuk, S.M. Chuiko 
On Approximate Solutions of Nonlinear Boundary-Value Problems by the Newton–Kantorovich Method // Journal of Mathematical Sciences (United States). – 2021. – Vol. 258. – No. 5. – P. 594–617. DOI: 10.1007/s10958-021-05569-y

A.M. Samoilenko, S.M. Chuiko, O.V. Nesmelova
Nonlinear Boundary-Value Problems Unsolved with Respect to the Derivative // Ukrainian Mathematical Journal. – 2021. – Vol. 72. – No. 8. – P. 1280–1293. DOI: 10.1007/s11253-020-01852-4

S.M. ChuikoO.V. Nesmelova, M.V. Dzyuba 
On the Approximate Solution of Matrix Differential-Algebraic Boundary-Value Problems by the Least-Squares Method // Journal of Mathematical Sciences (United States). – 2021. – Vol. 253. – No. 2. – P. 323–337. DOI: 10.1007/s10958-021-05231-7

S.M. ChuikoO.V. Nesmelova, O.S. Chuiko 
Autonomous Noetherian Boundary-Value Problem in the Case of Parametric Resonance // Journal of Mathematical Sciences (United States). – 2021. – Vol. 256. – No. 5. – P. 713–725. DOI: 10.1007/s10958-021-05455-7

S.M. Chuiko 
Differential-algebraic boundary-value problems with the variable rank of leading-coefficient matrix // Journal of Mathematical Sciences (United States). – 2021. – Vol. 259. – No. 1. – P. 10–22. DOI: 10.1007/s10958-021-05597-8

S.M. Chuiko, E.V. Chuiko, Y.V. Kalinichenko 
Boundary-Value Problems for Systems of Linear Difference-Algebraic Equations // Journal of Mathematical Sciences (United States). – 2021. – Vol. 254. – No. 2. – P. 318–333. DOI: 10.1007/s10958-021-05307-4

S.M. Chuiko, O.V. Nesmelova
Nonlinear boundary-value problems for degenerate differential-algebraic systems // Journal of Mathematical Sciences (United States). – 2021. – Vol. 252. – No. 4. – P. 463–471. DOI: 10.1007/s10958-020-05174-5

S.M. Chuĭko
A Generalized Green Operator for a Linear Noetherian Differential-Algebraic Boundary Value Problem // Siberian Advances in Mathematics. – 2020. – Vol. 30. – No. 3. – P. 177–191. DOI: 10.3103/S1055134420030037

S.M. Chuiko 
On the Solution of a Linear Noetherian Boundary-Value Problem for a Differential-Algebraic System with Concentrated Delay by the Method of Least Squares // Journal of Mathematical Sciences (United States). – 2020. – Vol. 246. – No. 5. – P. 622–630. DOI: 10.1007/s10958-020-04768-3

A.A. Boichuk, S.M. ChuikoY.V. Kalinichenko 
Linear Noetherian Boundary-Value Problem for a Matrix Difference Equation // Ukrainian Mathematical Journal. – 2020. – Vol. 72. – No. 3. – P. 386–402. DOI: 10.1007/s11253-020-01789-8

S.M. Chuiko
Solvability of Cauchy Problem for a Differential-Algebraic System with Concentrated Delay // Russian Mathematics. – 2019. – Vol. 63. – No. 12. – P. 80–95. DOI: 10.3103/S1066369X19120090

S.M. Chuiko, D.V. Sysoev
Periodic Matrix Boundary-Value Problems with Concentrated Delay // Journal of Mathematical Sciences (United States). – 2019. – Vol. 243. – No. 2. – P. 326–337. DOI: 10.1007/s10958-019-04542-0

S.M. Chuiko, M.V.Dzyuba
Matrix Differential-Algebraic Boundary-Value Problem with Pulsed Action // Journal of Mathematical Sciences (United States). – 2019. – Vol. 238. – No. 3. – P. 333–343. DOI: 10.1007/s10958-019-04239-4

S.M. Chuiko 
The method of least squares in the theory of Noetherian differential-algebraic boundary-value problems // Journal of Mathematical Sciences (United States). – 2019. – Vol. 242. – No. 3. – P. 381–392. DOI: 10.1007/s10958-019-04484-7

S.M. Chuiko, O.V. Nesmelova (Starkova) 
Autonomous Noether Boundary-Value Problems not Solved with Respect to the Derivative // Journal of Mathematical Sciences (United States). – 2018. – Vol. 230. – No. 5. – P. 799–803. DOI: 10.1007/s10958-018-3793-1

S.M. ChuikoO.V. Nesmelova, M.V. Dzyuba 
Least-Squares Method in the Theory of Matrix Differential-Algebraic Boundary-Value Problems // Ukrainian Mathematical Journal. – 2018. – Vol. 70. – No. 2. – P. 319–333. DOI: 10.1007/s11253-018-1502-3

S.M. Chuiko
On a Reduction of the Order in a Differential-Algebraic System // Journal of Mathematical Sciences (United States). – 2018. – Vol. 235. – No. 1. – P. 2–14. DOI: 10.1007/s10958-018-4054-z

S.M. ChuikoA.A. Boichuk
Autonomous Periodic Boundary-Value Problem for a Matrix Differential Equation // Journal of Mathematical Sciences (United States). – 2018. – Vol. 228. – No. 3. – P. 323–334. DOI: 10.1007/s10958-017-3624-9

S.M. Chuiko Solvability of Linear Matrix Boundary-Value Problem // Russian Mathematics. – 2018. – Vol. 62. – No. 4. – P. 74–85. DOI: 10.3103/S1066369X18040084

S.M. Chuiko On the Solvability of a Matrix Boundary-Value Problem // Journal of Mathematical Sciences (United States). – 2018. – Vol. 230. – No. 5. – P. 794–798. DOI: 10.1007/s10958-018-3792-2

S.M. Chuiko, A.S. Chuiko, D.V. Sysoev
Weakly Nonlinear Matrix Boundary-Value Problem in the Case of Parametric Resonance // Journal of Mathematical Sciences (United States). – 2017. – Vol. 223. – No. 3. – P. 337–350. DOI: 10.1007/s10958-017-3359-7

A. Samoilenko, A. Boichuk, S. Chuiko
Hybrid difference-differential boundary-value problem // Miskolc Mathematical Notes. – 2017. – Vol. 18. – No. 2. – P. 1015–1031. DOI: 10.18514/MMN.2017.2280

S. Chuiko 
Nonlinear matrix differential-algebraic boundary value problem // Lobachevskii Journal of Mathematics. – 2017. – Vol. 38. – No. 2. – P. 236–244. DOI: 10.1134/S1995080217020056

S.M. Chuiko 
To the issue of a generalization of the matrix differential-algebraic boundary-value problem // Journal of Mathematical Sciences (United States). – 2017. – Vol. 227. – No. 1. – P. 13–25. DOI: 10.1007/s10958-017-3571-5

S.M. Chuiko
On the regularization of a matrix differential-algebraic boundary-value problem // Journal of Mathematical Sciences (United States). – 2017. – Vol. 220. – No. 5. – P. 591–602. DOI: 10.1007/s10958-016-3202-6

S. Chuiko
Weakly nonlinear boundary value problem for a matrix differential equation // Miskolc Mathematical Notes. – 2016. – Vol. 17. – No. 1. – P. 139–150. DOI: 10.18514/MMN.2016.1312

S.M. Chuiko 
Generalized green operator of Noetherian boundary-value problem for matrix differential equation // Russian Mathematics. – 2016. – Vol. 60. – No. 8. – P. 64–73. DOI: 10.3103/S1066369X16080089

S.M. Chuiko 
The Green’s operator of a generalized matrix differential-algebraic boundary value problem // Siberian Mathematical Journal. – 2015. – Vol. 56. – No. 4. – P. 752–760. DOI: 10.1134/S0037446615040175

S.M. ChuikoE.V. Chuiko,  I.A. Boichuk
Reduction of the Fredholm Boundary-Value Problem to the Critical Case of the First Order // Journal of Mathematical Sciences (United States). – 2015. – Vol. 208. – No. 5. – P. 607–610. DOI: 10.1007/s10958-015-2470-x

S.M. Chuiko
Nonlinear Noetherian Boundary-Value Problem in the Case of Parametric Resonance // Journal of Mathematical Sciences (United States). – 2015. – Vol. 205. – No. 6. – P. 859–870. DOI: 10.1007/s10958-015-2289-5

S.M. Chuiko
A generalized matrix differential-algebraic equation // Journal of Mathematical Sciences (United States). – 2015. – Vol. 210. – No. 1. – P. 9–21. DOI: 10.1007/s10958-015-2545-8

S.M. Chuiko
On the Regularization of a Linear Fredholm Boundary-Value Problem by a Degenerate Pulsed Action // Journal of Mathematical Sciences (United States). – 2014. – Vol. 197. – No. 1. – P. 138–150. DOI: 10.1007/s10958-014-1710-9

S.M. Chuiko, A.A. Boichuk, I.A. Boichuk
Nonlinear Noetherian Second-Order Boundary-Value Problems in the Critical Case // Journal of Mathematical Sciences (United States). – 2014. – Vol. 198. – No. 3. – P. 351–360. DOI: 10.1007/s10958-014-1795-1

S.M. Chuiko, I.A. Boichuk, O.E. Pirus
On the approximate solution of an autonomous boundary-value problem by the Newton-Kantorovich method // Journal of Mathematical Sciences (United States). – 2013. – Vol. 189. – No. 5. – P. 867–881. DOI: 10.1007/s10958-013-1225-9

S.M. Chuiko, O.E. Pirus
On the approximate solution of autonomous boundary-value problems by the Newton method // Journal of Mathematical Sciences (United States). – 2013. – Vol. 191. – No. 3. – P. 449–463. DOI: 10.1007/s10958-013-1329-2

S.M. Chuiko, A.S. Chuiko 
On approximate solution of periodic boundary-value problems with delay by the least-squares method in the critical case // Nonlinear Oscillations. – 2012. – Vol. 14. – No. 3. – P. 445–460. DOI: 10.1007/s11072-012-0169-1

S.M. Chuiko 
Least-squares method in the theory of ill-posed linear boundary-value problems with pulse action // Ukrainian Mathematical Journal. – 2010. – Vol. 62. – No. 5. – P. 794–803. DOI: 10.1007/s11253-010-0389-4

S.M. ChuikoI.A. Boichuk 
Nonlinear Noetherian boundary-value problems in the critical case // Nonlinear Oscillations. – 2010. – Vol. 13. – No. 1. – P. 128–146. DOI: 10.1007/s11072-010-0105-1

S.M. ChuikoI.A. Boichuk 
Autonomous noetherian boundary-value problem in the critical case // Nonlinear Oscillations. – 2009. – Vol. 12. – No. 3. – P. 417–428. DOI: 10.1007/s11072-010-0085-1

S.M. ChuikoO.V. Starkova
On the approximate solution of autonomous boundary-value problems by the least-squares method // Nonlinear Oscillations. – 2009. – Vol. 12. – No. 4. – P. 574–591. DOI: 10.1007/s11072-010-0095-z

S.M. Chuiko 
Weakly nonlinear boundary-value problem in a special critical case // Ukrainian Mathematical Journal. – 2009. – Vol. 61. – No. 4. – P. 657–673. DOI: 10.1007/s11253-009-0227-8

A.A. Boichuk, S.M. Chuiko 
Bifurcation of solutions of an impulsive boundary-value problem // Nonlinear Oscillations. – 2008. – Vol. 11. – No. 1. – P. 18–28. DOI: 10.1007/s11072-008-0011-y

S.M. Chuiko
On approximate solution of boundary-value problems by the least squares method // Nonlinear Oscillations. – 2008. – Vol. 11. – No. 4. – P. 585–604. DOI: 10.1007/s11072-009-0053-9

A.A. Boichuk, S.M. Chuiko
Method of accelerated convergence for the construction of solutions of a Noetherian boundary-value problem // Ukrainian Mathematical Journal. – 2008. – Vol. 60. – No. 12. – P. 1861–1877. DOI: 10.1007/s11253-009-0176-2

A.A. Boichuk, S.M. Chuiko 
Generalized green operator for an impulsive boundary-value problem with switchings // Nonlinear Oscillations. – 2007. – Vol. 10. – No. 1. – P. 46–61. DOI: 10.1007/s11072-007-0005-1

S.M. Chuiko
Bifurcation of solutions of a linear Fredholm boundary-value problem // Ukrainian Mathematical Journal. – 2007. – Vol. 59. – No. 8. – P. 1274–1279. DOI: 10.1007/s11253-007-0087-z

S.M. Chuiko 
Domain of convergence of an iterative procedure for an autonomous boundary-value problem // Nonlinear Oscillations. – 2006. – Vol. 9. – No. 3. – P. 405–422. DOI: 10.1007/s11072-006-0053-y

S.M.Chuiko 
Acceleration of convergence of an iteration procedure for a weakly nonlinear boundary-value problem // Nonlinear Oscillations. – 2006. – Vol. 9. – No. 1. – P. 125–130. DOI: 10.1007/s11072-006-0031-4

S.M.Chuiko 
A Generalized Green Operator for a Boundary Value Problem with Impulse Action // Differential Equations. – 2001. – Vol. 37. – No. 8. – P. 1189–1193. DOI: 10.1023/A:1012440123296

S.M.Chuiko 
A Green operator for boundary value problems with an impulsive effect // Doklady Mathematics. – 2001. – Vol. 64. – No. 1. – P. 41–43

S.M.Chuiko 
Almost periodic solutions to weakly nonlinear equations in critical cases // Doklady Mathematics. – 1998. – Vol. 57. – No. 2. – P. 230–232

S.M. Chuiko
Almost periodical solutions of nonlinear systems in critical cases // Doklady Akademii Nauk. – 1998. – Vol. 359. – No. 3. – P. 316–318.

A.A. Boichuk, S.M. Chuiko
The generalized Green operator of a linear quasiperiodic problem // Differential Equations. – 1996. – Vol. 32. – No. 4. – P. 451–458.

A.A. Boichuk, E.V. Chuiko,S.M. Chuiko
Periodic solutions of autonomous systems with pulse influence in critical cases // Ukrainian Mathematical Journal. – 1995. – Vol. 47. – No. 11. – P. 1688–1695. DOI: 10.1007/BF01057917

A.A. Boichuk, V.F. Zhuravlev, S.M. Chuiko
Periodic solutions of nonlinear autonomous systems in critical cases // Ukrainian Mathematical Journal. – 1990. – Vol. 42. – No. 9. – P. 1049–1054. DOI: 10.1007/BF01056595

2009 – 2012 participated in the implementation of the joint German-Ukrainian scientific project “Smoothness and methods of approximation of classes of smooth functions”, which was financed by the German Research Foundation;

2009 to the present – heads the state budget topic on the theory of boundary value problems and the theory of approximations of functions;

2009 to the present – heads the interdepartmental laboratory “Boundary Value Problems of the Theory of Differential Equations” on behalf of the Donbas State Pedagogical University, jointly with the Department of Differential Equations and Theory of Oscillations of the Institute of Mathematics of the NAS of Ukraine;

2016 to the present – member of the editorial boards of the professional Bulletin of the V.N. Karazin Kharkiv National University. Series: Mathematics, Applied Mathematics and Mechanics and the scientific journal “Proceedings of the Institute of Applied Mathematics and Mechanics of the NAS of Ukraine”;

2015 to the present  appointed as an expert of the Scientific Council of the Ministry of Education and Science of Ukraine. Member of the expert group on mathematics of the Ministry of Education and Science of Ukraine for reviewing textbooks for secondary schools;

2021 Member of the expert group on mathematics of the Ministry of Education and Science of Ukraine for assessing the effectiveness of higher education institutions in terms of their scientific (scientific and technical) activities in the scientific direction “Mathematical Sciences and Natural Sciences” since 2020;

2016 to the present appointed as a member of the Scientific Council of the Institute of Applied Mathematics and Mechanics of the NAS of Ukraine.

 Teaching Experience:

Courses: “Differential equations”, “Boundary value problem for ordinary differential equations”, “Boundary value problem for functional differential equations”, “Theory of nonlinear oscillations”, “Theory of  numerical methods”, “Probablity theory of and statistics”, “Theory of generalized inverse operators and their applications”, Donbass State Pedagogical University (1987 – 2026).

Professional Memberships

2008 AMS member;

2022 MPS member;

2023 GAMM member.

Supervision of Graduate Students:

  • 2009, Olga Genadiyevna Rovenskaya,
  • 2010, Olga Volodymyrivna Starkova (Nesmelova),
  • 2010, Igor Oleksandrovych Boichuk,
  • 2013, Olga Evgenievna Pyrus (Lyubymaya),
  • 2018, Sysoev Denis Vitaliyovych,
  • 2020, Dzyuba Maryna Volodymyrivna,
  • 2025, Kuzmina Vlada Aleksandrivna.