Information on the author

Viktor I. Tkachenko

Member of the Editorial Board of the journal Nonlinear Oscillations

Anatolii Mykhailovych Samoilenko (on his 80th birthday): A. A. Boichuk, W. L. Kułyk, I. O. Parasyuk, M. O. Perestyuk, R. I. Petryshyn, G. P. Pelyukh, M. Rontó, O. M. Stanzhitskyi, Y. V. Teplinsky, V. I. Tkachenko, S. I. Trofimchuk, and S. M. Chuiko; Volume 21, No.1, pp. 3-5; Link PDF
Of blessed memory of a prominent mathematician, Anatolii Mykhailovych Samoilenko (02.01.1938 – 04.12.2020): A. A. Boichuk, W. L. Kułyk, I. O. Lukovsky, V. L. Makarov, I. O. Parasyuk, G. P. Pelyukh, M. O. Perestyuk, R. I. Petryshyn, A. K. Prykarpatski, A. N. Ronto, M. Rontó, V. H. Samoilenko, O. M. Stanzhitskyi, Y. V. Teplinsky, O. M. Tymokha, V. I. Tkachenko, S. I. Trofimchuk, and S. M. Chuiko; Volume 26, No.1, pp. 3-5; Link PDF
To 70-th anniversary of Anatolii Mykhailovych Samoilenko: A. A. Boichuk, A. Y. Luchka, G. P. Pelyukh, Y. A. Prykarpatsky, A. N. Ronto, and V. I. Tkachenko; Volume 11, No.1, pp. 4-6; Link PDF
On multi-frequency systems with impulses: V. I. Tkachenko; Volume 1, No.1, pp. 107-116; Link PDF
On periodic solutions of a Lotka - Volterra system with impulses: O. O. Struk and V. I. Tkachenko; Volume 4, No.1, pp. 129-145; Link
Oleksandr Andriyovych Boichuk (on his 65th birthday): A. M. Samoilenko, I. T. Kiguradze, I. O. Lukovsky, V. L. Makarov, M. O. Perestyuk, O. M. Sharkovsky, J. Diblík, V. F. Zhuravlev, M. Medveď, I. O. Parasyuk, N. H. Rozov, O. M. Stanzhitskyi, Y. V. Teplinsky, V. I. Tkachenko, and M. Fečkan; Volume 18, No.2, pp. 147-148; Link PDF
On a competitive extinction in Lotka–Volterra systems with impulsive effects: O. O. Struk and V. I. Tkachenko; Volume 5, No.2, pp. 237-250; Link
On global stability of a nonlinear functional-differential equation with impulsive effect: O. I. Nenya and V. I. Tkachenko; Volume 10, No.2, pp. 258-269; Link PDF
Oleksandr Andriiovych Boichuk (on 60-th anniversary of his birthday): A. M. Samoilenko, M. O. Perestyuk, J. Diblík, M. Medveď, I. O. Parasyuk, R. I. Petryshyn, O. M. Stanzhitskyi, Y. V. Teplinsky, V. I. Tkachenko, M. Fečkan, and S. M. Chuiko; Volume 13, No.2, pp. 287-288; Link PDF
Almost periodic solutions of Lotka – Volterra systems with diffusion and nonfixed times of pulse action: A. V. Dvornyk and V. I. Tkachenko; Volume 21, No.3, pp. 305-322; Link PDF
Vasyl’ Yukhymovych Slyusarchuk (on his 70th birthday): A. M. Samoilenko, M. O. Perestyuk, A. A. Boichuk, M. F. Gorodnii, I. O. Parasyuk, R. I. Petryshyn, V. I. Tkachenko, and S. I. Trofimchuk; Volume 19, No.3, pp. 431-432; Link PDF
Serhii Fedorovych Kolyada: A. M. Samoilenko, O. M. Sharkovsky, M. Misiurewicz, Ľ. Snoha, A. A. Boichuk, V. V. Zaiats, A. F. Ivanov, M. V. Pratsiovytyi, E. Y. Romanenko, A. Sivak, V. I. Tkachenko, and S. I. Trofimchuk; Volume 21, No.3, pp. 431-432; Link PDF
Vasyl Yukhymovych Slyusarchuk (on his 75th birthday): M. O. Perestyuk, A. A. Boichuk, M. F. Gorodnii, I. O. Parasyuk, R. I. Petryshyn, and V. I. Tkachenko; Volume 24, No.3, pp. 435-436; Link PDF
On stability of solutions of evolution equations with unfixed times of impulsive effects: A. V. Dvornyk and V. I. Tkachenko; Volume 18, No.4, pp. 475-488; Link PDF
On a global stability of a certain nonlinear difference equation: O. I. Nenya, V. I. Tkachenko, and S. I. Trofimchuk; Volume 7, No.4, pp. 487-494; Link PDF
Almost periodic logistic equation with delay and nonfixed times of pulse action: Y. M. Myslo and V. I. Tkachenko; Volume 22, No.4, pp. 497-509; Link PDF
On positive periodic solutions of nonlinear impulsive functional-differential equations: O. I. Kocherga, O. I. Nenya, and V. I. Tkachenko; Volume 11, No.4, pp. 501-511; Link PDF
Almost periodic solutions for Mackey – Glass equation with impulsive effect: Y. M. Myslo and V. I. Tkachenko; Volume 14, No.4, pp. 507-515; Link PDF
On pernanence of periodic predator-prey systems with stage structure and impulsive effect: Y. M. Myslo and V. I. Tkachenko; Volume 12, No.4, pp. 527-540; Link PDF
Asymptotic almost periodic solutions of equations with delays and impulsive effects at nonfixed times: Y. M. Myslo and V. I. Tkachenko; Volume 19, No.4, pp. 533-546; Link PDF
On invariant sets of differential equations with impulses: V. I. Tkachenko; Volume 2, No.4, pp. 540-558; Link PDF
Permanency and periodic solutions in models with age structure, delay, and impulsive effect: Y. M. Myslo and V. I. Tkachenko; Volume 13, No.4, pp. 546-555; Link PDF
Exponential dichotomy and existence of almost periodic solutions of impulsive differential equations: V. I. Tkachenko; Volume 17, No.4, pp. 546-557; Link PDF
On two-dimensional Lotka-Volterra system with impulsive effect: O. O. Struk and V. I. Tkachenko; Volume 3, No.4, pp. 554-561; Link