Kovalnogov, Vladislav N.; Fedorov, Ruslan V.; Karpukhina, Tamara V.; Simos, Theodore E.; Tsitouras, Charalampos Runge-Kutta pairs of orders 9(8) for use in quadruple precision computations. (English) Zbl 1535.65101 Numer. Algorithms 95, No. 4, 1905-1919 (2024). MSC: 65L06 65L05 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., Numer. Algorithms 95, No. 4, 1905--1919 (2024; Zbl 1535.65101) Full Text: DOI
Kovalnogov, V. N.; Fedorov, R. V.; Karpukhina, M. T.; Kornilova, M. I.; Simos, T. E.; Tsitouras, Ch. Economical handling of Runge-Kutta-Nyström step rejection. (English) Zbl 1522.65123 J. Comput. Appl. Math. 438, Article ID 115528, 9 p. (2024). MSC: 65L06 65L05 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., J. Comput. Appl. Math. 438, Article ID 115528, 9 p. (2024; Zbl 1522.65123) Full Text: DOI
Kovalnogov, V. N.; Fedorov, R. V.; Karpukhina, T. V.; Evgenievich, C. Y.; Simos, T. E.; Tsitouras, Ch. An algorithmic approach to Runge-Kutta-Nyström pairs. (English) Zbl 1538.65191 TWMS J. Pure Appl. Math. 14, No. 1, 3-22 (2023). MSC: 65L06 65L05 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., TWMS J. Pure Appl. Math. 14, No. 1, 3--22 (2023; Zbl 1538.65191) Full Text: Link
Kovalnogov, V. N.; Fedorov, R. V.; Demidov, D. A.; Malyoshina, M. A.; Simos, T. E.; Tsitouras, Ch. Midway reassignment of Runge-Kutta step length. (English) Zbl 1530.65075 Math. Methods Appl. Sci. 46, No. 16, 16701-16708 (2023). MSC: 65L05 65L06 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., Math. Methods Appl. Sci. 46, No. 16, 16701--16708 (2023; Zbl 1530.65075) Full Text: DOI
Busygin, Sergey; Fedorov, Ruslan; Karpukhina, Tamara; Kovalnogov, Vladislav N.; Simos, Theodore E.; Tsitouras, Charalampos Runge-Kutta pairs of orders 8(7) with extended stability regions for addressing linear inhomogeneous systems. (English) Zbl 1538.65184 Math. Methods Appl. Sci. 46, No. 4, 4212-4224 (2023). MSC: 65L06 65L05 65L20 PDFBibTeX XMLCite \textit{S. Busygin} et al., Math. Methods Appl. Sci. 46, No. 4, 4212--4224 (2023; Zbl 1538.65184) Full Text: DOI
Kovalnogov, Vladislav N.; Kornilova, Maria I.; Khakhalev, Yuri A.; Generalov, Dmitry A.; Simos, Theodore E.; Tsitouras, Charalampos Fitted modifications of Runge-Kutta-Nyström pairs of orders 7(5) for addressing oscillatory problems. (English) Zbl 1538.65190 Math. Methods Appl. Sci. 46, No. 1, 273-282 (2023). MSC: 65L06 65L05 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., Math. Methods Appl. Sci. 46, No. 1, 273--282 (2023; Zbl 1538.65190) Full Text: DOI
Stanzhytskyi, O. M.; Kichmarenko, O. D.; Mogylova, V. V.; Koval’chuk, T. V. Optimal control over systems of functional-differential equations with infinite delay. (English. Ukrainian original) Zbl 1528.49019 Ukr. Math. J. 75, No. 1, 157-173 (2023); translation from Ukr. Mat. Zh. 75, No. 1, 138-152 (2023). Reviewer: Suvra Kanti Chakraborty (Kolkata) MSC: 49K15 34K35 93C15 PDFBibTeX XMLCite \textit{O. M. Stanzhytskyi} et al., Ukr. Math. J. 75, No. 1, 157--173 (2023; Zbl 1528.49019); translation from Ukr. Mat. Zh. 75, No. 1, 138--152 (2023) Full Text: DOI
Kovalnogov, V. N.; Fedorov, R. V.; Karpukhina, M. T.; Kornilova, M. I.; Simos, T. E.; Tsitouras, Ch. Runge-Kutta-Nyström methods of eighth order for addressing linear inhomogeneous problems. (English) Zbl 1496.65088 J. Comput. Appl. Math. 419, Article ID 114778, 12 p. (2023). MSC: 65L06 65L05 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., J. Comput. Appl. Math. 419, Article ID 114778, 12 p. (2023; Zbl 1496.65088) Full Text: DOI
Kovalnogov, Vladislav N.; Kornilova, M. I.; Khakhalev, Y. A.; Generalov, D. A.; Simos, T. E.; Tsitouras, Ch. New family for Runge-Kutta-Nyström pairs of orders 6(4) with coefficients trained to address oscillatory problems. (English) Zbl 1527.65052 Math. Methods Appl. Sci. 45, No. 12, 7715-7727 (2022). MSC: 65L05 65L06 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., Math. Methods Appl. Sci. 45, No. 12, 7715--7727 (2022; Zbl 1527.65052) Full Text: DOI
Koval’chuk, M.; Kharchenko, V.; Yavors’kyĭ, A.; Bieda, I.; Panchenko, T. ECG signal classification using machine learning techniques. (Ukrainian. English summary) Zbl 1513.92037 Visn., Ser. Fiz.-Mat. Nauky, Kyïv. Univ. Im. Tarasa Shevchenka 2022, No. 2, 70-77 (2022). MSC: 92C55 68T07 PDFBibTeX XMLCite \textit{M. Koval'chuk} et al., Visn., Ser. Fiz.-Mat. Nauky, Kyïv. Univ. Im. Tarasa Shevchenka 2022, No. 2, 70--77 (2022; Zbl 1513.92037) Full Text: DOI OA License
Generalov, Dmitry; Tsvetova, Ekaterina; Fedorov, Ruslan; Kovalnogov, Vladislav; Simos, T. E. A two-step singularly P-Stable method with high phase and large stability properties for problems in chemistry. (English) Zbl 1487.81083 J. Math. Chem. 60, No. 3, 475-501 (2022). MSC: 81Q05 65L05 35Q91 03H10 80A30 PDFBibTeX XMLCite \textit{D. Generalov} et al., J. Math. Chem. 60, No. 3, 475--501 (2022; Zbl 1487.81083) Full Text: DOI
Kovalnogov, Vladislav N.; Simos, Theodore E.; Tsitouras, Charalampos Runge-Kutta pairs suited for SIR-type epidemic models. (English) Zbl 1512.65135 Math. Methods Appl. Sci. 44, No. 6, 5210-5216 (2021). MSC: 65L05 65L06 92C60 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., Math. Methods Appl. Sci. 44, No. 6, 5210--5216 (2021; Zbl 1512.65135) Full Text: DOI
Koval’chuk, T. V.; Lavrova, O. E.; Mohyl’ova, V. V. Optimal control for some classes of dynamic equations on the infinite interval of time scale. (English. Ukrainian original) Zbl 1465.37108 J. Math. Sci., New York 254, No. 2, 229-245 (2021); translation from Neliniĭni Kolyvannya 22, No. 4, 482-496 (2019). MSC: 37N35 PDFBibTeX XMLCite \textit{T. V. Koval'chuk} et al., J. Math. Sci., New York 254, No. 2, 229--245 (2021; Zbl 1465.37108); translation from Neliniĭni Kolyvannya 22, No. 4, 482--496 (2019) Full Text: DOI
Koval’chuk, T. V.; Mogylova, V. V.; Stanzhytskyi, O. M.; Shovkoplyas, T. V. Application of the averaging method to the problems of optimal control of the impulse systems. (English) Zbl 1468.49036 Carpathian Math. Publ. 12, No. 2, 504-521 (2020). Reviewer: Hector Jasso (Ciudad de México) MSC: 49N25 PDFBibTeX XMLCite \textit{T. V. Koval'chuk} et al., Carpathian Math. Publ. 12, No. 2, 504--521 (2020; Zbl 1468.49036) Full Text: DOI OA License
Koval’chuk, T. V.; Mohyl’ova, V. V.; Shovkoplyas, T. V. Averaging method in problems of optimal control over impulsive systems. (English. Ukrainian original) Zbl 1460.49024 J. Math. Sci., New York 247, No. 2, 314-327 (2020); translation from Neliniĭni Kolyvannya 22, No. 1, 86-97 (2019). Reviewer: Roman Šimon Hilscher (Brno) MSC: 49N25 49K15 34H05 PDFBibTeX XMLCite \textit{T. V. Koval'chuk} et al., J. Math. Sci., New York 247, No. 2, 314--327 (2020; Zbl 1460.49024); translation from Neliniĭni Kolyvannya 22, No. 1, 86--97 (2019) Full Text: DOI
Kovalnogov, Vladislav N.; Simos, Theodore E.; Tsitouras, Charalampos Ninth-order, explicit, two-step methods for second-order inhomogeneous linear IVPs. (English) Zbl 1451.65086 Math. Methods Appl. Sci. 43, No. 7, 4918-4926 (2020). MSC: 65L05 65L06 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., Math. Methods Appl. Sci. 43, No. 7, 4918--4926 (2020; Zbl 1451.65086) Full Text: DOI
Kovalnogov, Vladislav N.; Fedorov, Ruslan V.; Bondarenko, Aleksandr A.; Simos, Theodore E. An optimized multistage complete in phase P-stable algorithm. (English) Zbl 1472.81079 MATCH Commun. Math. Comput. Chem. 82, No. 2, 385-438 (2019). MSC: 81Q05 81-08 65L05 65L06 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., MATCH Commun. Math. Comput. Chem. 82, No. 2, 385--438 (2019; Zbl 1472.81079) Full Text: Link
Kovalnogov, V. N.; Karpukhina, T. V.; Boyarkin, M. S. Software and information complex for the coupled numericl solution of the equations of heat-and-moisture transfer and the studying of heat-and-humidity kinetics of biofuel cells. (English) Zbl 1418.92240 JNAIAM, J. Numer. Anal. Ind. Appl. Math. 13, No. 1-2, 1-5 (2019). MSC: 92E20 80A20 35Q92 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., JNAIAM, J. Numer. Anal. Ind. Appl. Math. 13, No. 1--2, 1--5 (2019; Zbl 1418.92240) Full Text: Link
Kovalnogov, V. N.; Karpukhina, T. V.; Boyarkin, M. S. Development of the theory for modeling and research of advanced technologies for enriching biofuel cells with generator gases. (English) Zbl 1418.92239 JNAIAM, J. Numer. Anal. Ind. Appl. Math. 13, No. 1-2, 7-14 (2019). MSC: 92E20 35Q92 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., JNAIAM, J. Numer. Anal. Ind. Appl. Math. 13, No. 1--2, 7--14 (2019; Zbl 1418.92239) Full Text: Link
Kovalnogov, V. N.; Fedorov, R. V.; Suranov, D. V.; Simos, T. E. New multiple stages scheme with improved properties for second order problems. (English) Zbl 1406.81026 J. Math. Chem. 57, No. 1, 232-262 (2019). MSC: 81Q05 65L05 81-08 34A30 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., J. Math. Chem. 57, No. 1, 232--262 (2019; Zbl 1406.81026) Full Text: DOI
Kravets’, V. I.; Koval’chuk, T. V.; Mohyl’ova, V. V.; Stanzhyts’kyi, O. M. Application of the method of averaging to the problems of optimal control over functional-differential equations. (English. Ukrainian original) Zbl 1425.49009 Ukr. Math. J. 70, No. 2, 232-242 (2018); translation from Ukr. Mat. Zh. 70, No. 2, 206-215 (2018). MSC: 49K15 34K33 PDFBibTeX XMLCite \textit{V. I. Kravets'} et al., Ukr. Math. J. 70, No. 2, 232--242 (2018; Zbl 1425.49009); translation from Ukr. Mat. Zh. 70, No. 2, 206--215 (2018) Full Text: DOI
Kovalnogov, V. N.; Fedorov, R. V.; Simos, T. E. New hybrid symmetric two step scheme with optimized characteristics for second order problems. (English) Zbl 1411.65087 J. Math. Chem. 56, No. 9, 2816-2844 (2018). MSC: 65L05 65L06 81Q05 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., J. Math. Chem. 56, No. 9, 2816--2844 (2018; Zbl 1411.65087) Full Text: DOI
Kovalnogov, V. N.; Fedorov, R. V.; Bondarenko, A. A.; Simos, T. E. New hybrid two-step method with optimized phase and stability characteristics. (English) Zbl 1402.81137 J. Math. Chem. 56, No. 8, 2302-2340 (2018). MSC: 81Q05 81-08 65L05 65L06 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., J. Math. Chem. 56, No. 8, 2302--2340 (2018; Zbl 1402.81137) Full Text: DOI
Kovalnogov, Vladislav N.; Fedorov, Ruslan V.; Golovanov, Viktor M.; Kostishko, Boris M.; Simos, T. E. A four stages numerical pair with optimal phase and stability properties. (English) Zbl 1384.65048 J. Math. Chem. 56, No. 1, 81-102 (2018). MSC: 65L12 65L06 65L05 65L20 34L40 PDFBibTeX XMLCite \textit{V. N. Kovalnogov} et al., J. Math. Chem. 56, No. 1, 81--102 (2018; Zbl 1384.65048) Full Text: DOI
Ivashkevych, A. O.; Koval’chuk, T. V. Existence of an optimal control for systems of differential equations with pulse action at nonfixed times. (English. Ukrainian original) Zbl 1396.49014 J. Math. Sci., New York 228, No. 3, 245-262 (2018); translation from Neliniĭni Kolyvannya 19, No. 4, 493-508 (2016). Reviewer: Michał Jóźwikowski (Warszawa) MSC: 49K15 49N05 49J15 PDFBibTeX XMLCite \textit{A. O. Ivashkevych} and \textit{T. V. Koval'chuk}, J. Math. Sci., New York 228, No. 3, 245--262 (2018; Zbl 1396.49014); translation from Neliniĭni Kolyvannya 19, No. 4, 493--508 (2016) Full Text: DOI
Kovalchuk, L. V.; Bezditnyi, V. T. Upper bounds for the average probabilities of difference characteristics of block ciphers with alternation of Markov transformations and generalized Markov transformations. (English. Russian original) Zbl 1342.94076 Cybern. Syst. Anal. 50, No. 3, 386-393 (2014); translation from Kibern. Sist. Anal. No. 3, 71-78 (2014). MSC: 94A60 PDFBibTeX XMLCite \textit{L. V. Kovalchuk} and \textit{V. T. Bezditnyi}, Cybern. Syst. Anal. 50, No. 3, 386--393 (2014; Zbl 1342.94076); translation from Kibern. Sist. Anal. No. 3, 71--78 (2014) Full Text: DOI
Aldoshin, S. M.; Anosov, D. V.; Chernyi, G. G.; Chubarikov, V. N.; Emel’yanov, S. V.; Faddeev, L. D.; Fomenko, A. T.; Gonchar, A. A.; Grigor’ev, A. I.; Il’in, V. A.; Kirpichnikov, M. P.; Korovin, S. K.; Koval’chuk, M. V.; Kozlov, V. V.; Kurzhanskii, A. B.; Marchuk, G. I.; Maslov, V. P.; Moiseev, E. I.; Nikol’skii, S. M.; Novikov, S. P.; Okunev, Yu. M.; Osipov, Yu. S.; Paton, B. E.; Skulachev, V. P.; Tkachuk, V. A.; Velikhov, E. P.; Zhuravlev, Yu. I. Viktor Antonovich Sadovnichii. A tribute in honor of his seventieth birthday. (English. Russian original) Zbl 1171.01307 Differ. Equ. 45, No. 4, 465-476 (2009); translation from Differ. Uravn. 45, No. 4, 451-461 (2009). MSC: 01A70 PDFBibTeX XMLCite \textit{S. M. Aldoshin} et al., Differ. Equ. 45, No. 4, 465--476 (2009; Zbl 1171.01307); translation from Differ. Uravn. 45, No. 4, 451--461 (2009) Full Text: DOI
Voloshynovskiy, S.; Koval, O.; Deguillaume, F.; Pun, T. Quality enhancement of printed-and-scanned images using distributed coding. (English) Zbl 1186.94355 Signal Process. 87, No. 6, 1301-1313 (2007). MSC: 94A12 PDFBibTeX XMLCite \textit{S. Voloshynovskiy} et al., Signal Process. 87, No. 6, 1301--1313 (2007; Zbl 1186.94355) Full Text: DOI Link
Voloshynovskiy, S.; Koval, O.; Mihcak, M. K.; Pun, T. The edge process model and its application to information-hiding capacity analysis. (English) Zbl 1373.94723 IEEE Trans. Signal Process. 54, No. 5, 1813-1825 (2006). MSC: 94A12 PDFBibTeX XMLCite \textit{S. Voloshynovskiy} et al., IEEE Trans. Signal Process. 54, No. 5, 1813--1825 (2006; Zbl 1373.94723) Full Text: DOI
Koval, O.; Voloshynovskiy, S.; Vila-Forcén, J. E.; Pérez-González, F.; Deguillaume, F.; Pun, T. Robustness improvement of known-host-state data-hiding using host statistics. (English) Zbl 1163.94353 Signal Process. 86, No. 5, 1076-1088 (2006). MSC: 94A12 PDFBibTeX XMLCite \textit{O. Koval} et al., Signal Process. 86, No. 5, 1076--1088 (2006; Zbl 1163.94353) Full Text: DOI Link
Grigoriev, V. P.; Koval, T. V. Influence of the magnetic field of current extracting systems on motion of an electron beam. (English. Russian original) Zbl 1133.82322 Russ. Phys. J. 49, No. 5, 500-505 (2006); translation from Izv. Vyssh. Uchebn. Zaved., Fiz. 49, No. 5, 44-47 (2006). MSC: 82D10 PDFBibTeX XMLCite \textit{V. P. Grigoriev} and \textit{T. V. Koval}, Russ. Phys. J. 49, No. 5, 500--505 (2006; Zbl 1133.82322); translation from Izv. Vyssh. Uchebn. Zaved., Fiz. 49, No. 5, 44--47 (2006) Full Text: DOI
Lavrishcheva, E. M.; Koval, G. I.; Korotun, T. M. An approach to the software quality management. (English. Russian original) Zbl 1117.68331 Cybern. Syst. Anal. 42, No. 5, 758-768 (2006); translation from Kibern. Sist. Anal. 42, No. 5, 174-185 (2006). MSC: 68N99 PDFBibTeX XMLCite \textit{E. M. Lavrishcheva} et al., Cybern. Syst. Anal. 42, No. 5, 758--768 (2006; Zbl 1117.68331); translation from Kibern. Sist. Anal. 42, No. 5, 174--185 (2006) Full Text: DOI
Vila-Forcén, J. E.; Voloshynovskiy, S.; Koval, O.; Pun, T. Facial image compression based on structured codebooks in overcomplete domain. (English) Zbl 1118.68489 EURASIP J. Appl. Signal Process. 2006, No. 7, 11 p. (2006). MSC: 68P30 68U10 94A08 PDFBibTeX XMLCite \textit{J. E. Vila-Forcén} et al., EURASIP J. Appl. Signal Process. 2006, No. 7, 11 p. (2006; Zbl 1118.68489) Full Text: DOI
Voloshynovskiy, S.; Koval, O.; Pun, T. Image denoising based on the edge-process model. (English) Zbl 1160.94309 Signal Process. 85, No. 10, 1950-1969 (2005). MSC: 94A08 94A12 PDFBibTeX XMLCite \textit{S. Voloshynovskiy} et al., Signal Process. 85, No. 10, 1950--1969 (2005; Zbl 1160.94309) Full Text: DOI Link
Koval’, T. V. On the structure of non-nilpotent groups with the condition of density of normality for noncyclic subgroups. (Ukrainian. English summary) Zbl 0981.20029 Dopov. Nats. Akad. Nauk Ukr., Mat. Pryr. Tekh. Nauky 2001, No. 7, 19-21 (2001). MSC: 20F50 20E15 20E07 20E25 PDFBibTeX XMLCite \textit{T. V. Koval'}, Dopov. Nats. Akad. Nauk Ukr., Mat. Pryr. Tekh. Nauky 2001, No. 7, 19--21 (2001; Zbl 0981.20029)
Koval’, T. V. Groups whose proper nonmaximal subgroups are cyclic or minimal noncyclic. (English. Ukrainian original) Zbl 0980.20024 Ukr. Math. J. 52, No. 12, 1949-1951 (2000); translation from Ukr. Mat. Zh. 52, No. 12, 1708-1710 (2000). Reviewer: A.P.Petravchuk (Kyïv) MSC: 20F22 20F16 20E25 20E07 20E34 PDFBibTeX XMLCite \textit{T. V. Koval'}, Ukr. Mat. Zh. 52, No. 12, 1708--1710 (2000; Zbl 0980.20024); translation from Ukr. Mat. Zh. 52, No. 12, 1708--1710 (2000) Full Text: DOI
Koval’chuk, T. V. Asymptotic properties of the estimates of parameters of a correlation function of random fields. (Ukrainian. English summary) Zbl 0970.62064 Dopov. Nats. Akad. Nauk Ukr., Mat. Pryr. Tekh. Nauky 2000, No. 6, 15-17 (2000). Reviewer: M.P.Moklyachuk (Kyïv) MSC: 62M40 62G05 60G60 PDFBibTeX XMLCite \textit{T. V. Koval'chuk}, Dopov. Nats. Akad. Nauk Ukr., Mat. Pryr. Tekh. Nauky 2000, No. 6, 15--17 (2000; Zbl 0970.62064)
Koval’, T. V. On the structure of finite groups with the condition of density of normality for noncyclic subgroups. (Ukrainian. English summary) Zbl 0977.20015 Visn., Ser. Fiz.-Mat. Nauky, Kyïv. Univ. Im. Tarasa Shevchenka 2000, No. 2, 15-21 (2000). MSC: 20D30 PDFBibTeX XMLCite \textit{T. V. Koval'}, Visn., Ser. Fiz.-Mat. Nauky, Kyïv. Univ. Im. Tarasa Shevchenka 2000, No. 2, 15--21 (2000; Zbl 0977.20015)
Koval’, T. L. The strong invariance principle for linear processes in Hilbert space. (Ukrainian. English summary) Zbl 0977.60036 Visn., Ser. Fiz.-Mat. Nauky, Kyïv. Univ. Im. Tarasa Shevchenka 2000, No. 3, 136-140 (2000). MSC: 60F15 PDFBibTeX XMLCite \textit{T. L. Koval'}, Visn., Ser. Fiz.-Mat. Nauky, Kyïv. Univ. Im. Tarasa Shevchenka 2000, No. 3, 136--140 (2000; Zbl 0977.60036)
Koval’, V. I.; Mosiyash, T. A.; Ruchkin, K. A. Analysis of the stability domains of the uniform rotations of some mechanical systems. (Russian) Zbl 1047.70566 Mekh. Tverd. Tela 29, 91-99 (1997). Reviewer: Elena Ivanovna Kharlamova (Donetsk) MSC: 70E15 70K20 34D20 PDFBibTeX XMLCite \textit{V. I. Koval'} et al., Mekh. Tverd. Tela 29, 91--99 (1997; Zbl 1047.70566)
Glushchenko, A. A.; Koval’chuk, T. L. Solution of a filtering problem with partially unknown boundary conditions. (Ukrainian) Zbl 1029.35501 Visn., Ser. Fiz.-Mat. Nauky, Kyïv. Univ. Im. Tarasa Shevchenka 1996, No. 1, 21-28 (1996). Reviewer: O.A.Voina (Kyïv) MSC: 35G20 35G30 30C30 35J25 35Q80 PDFBibTeX XMLCite \textit{A. A. Glushchenko} and \textit{T. L. Koval'chuk}, Visn., Ser. Fiz.-Mat. Nauky, Kyïv. Univ. Im. Tarasa Shevchenka 1996, No. 1, 21--28 (1996; Zbl 1029.35501)
Koval’, T. L. An estimate for the rate of convergence in the central limit theorem for martingale fields. (English. Ukrainian original) Zbl 0923.60038 Theory Probab. Math. Stat. 55, 107-110 (1997); translation from Teor. Jmovirn. Mat. Stat. 55, 103-106 (1996). Reviewer: A.Ya.Olenko (Kyïv) MSC: 60F15 60G15 60G60 PDFBibTeX XMLCite \textit{T. L. Koval'}, Teor. Ĭmovirn. Mat. Stat. 55, 103--106 (1996; Zbl 0923.60038); translation from Teor. Jmovirn. Mat. Stat. 55, 103--106 (1996)
Antoshkin, M. Yu.; Grigor’ev, V. P.; Koval’, T. V.; Sablin, N. I. An electromagnetic code in polar coordinates for mathematical simulation of radiation in coaxial triode with virtual cathode. (Russian. English summary) Zbl 0972.78536 Mat. Model. 7, No. 8, 25-35 (1995). MSC: 78M20 78A40 PDFBibTeX XMLCite \textit{M. Yu. Antoshkin} et al., Mat. Model. 7, No. 8, 25--35 (1995; Zbl 0972.78536) Full Text: MNR
Koval’, T. L. On the accuracy of the normal approximation of the least square estimates of regression coefficients for \(m\)-dependent random fields. (English) Zbl 0926.62092 Àrato, M. (ed.) et al., New trends in probability and mathematical statistics. Proceedings of the second Ukrainian-Hungarian conference, Mukachevo, Ukraine, September 25–October 1, 1992. Kiev: TViMS. Teor. Veroyatn. Mat. Stat./Probab. Theory Math. Stat. 2, 93-99 (1995). Reviewer: A.Ya.Olenko (Kyïv) MSC: 62M40 60F05 62M10 PDFBibTeX XMLCite \textit{T. L. Koval'}, in: New trends in probability and mathematical statistics. Proceedings of the second Ukrainian-Hungarian conference, Mukachevo, Ukraine, September 25--October 1, 1992. Kiev: TViMS. 93--99 (1995; Zbl 0926.62092)
Koval’, T. L. On the accuracy of normal approximation of a weighted sum of random variables that form a two-parameter martingale difference. (English. Ukrainian original) Zbl 0842.60044 Theory Probab. Math. Stat. 48, 19-23 (1994); translation from Teor. Jmovirn. Mat. Stat. 48, 29-35 (1993). MSC: 60G50 60G48 PDFBibTeX XMLCite \textit{T. L. Koval'}, Theory Probab. Math. Stat. 48, 1 (1993; Zbl 0842.60044); translation from Teor. Jmovirn. Mat. Stat. 48, 29--35 (1993)
Koval’, T. L. Invariance principle for the least squares estimates. (English. Russian original) Zbl 0803.62086 Ukr. Math. J. 45, No. 1, 141-145 (1993); translation from Ukr. Mat. Zh. 45, No. 1, 128-131 (1993). Reviewer: V.Koval’ (Ternopil) MSC: 62M40 60F17 60G60 PDFBibTeX XMLCite \textit{T. L. Koval'}, Ukr. Math. J. 45, No. 1, 141--145 (1993; Zbl 0803.62086); translation from Ukr. Mat. Zh. 45, No. 1, 128--131 (1993)
Kubenko, V. D.; Koval’chuk, P. S.; Boyarshina, L. G.; Krasnopol’skaya, T. S.; Podchasov, N. P.; Puchka, G. N.; Kholopova, V. V.; Shvets, A. Yu. Nonlinear dynamics of axially symmetric fluid-carrying bodies. (Nelinejnaya dinamika osesimmetrichnykh tel, nesushchikh zhidkost’.) (Russian) Zbl 0861.73004 Kiev: Naukova Dumka. 184 p. (1992). MSC: 74-02 74F10 76B99 PDFBibTeX XMLCite \textit{V. D. Kubenko} et al., Nelinejnaya dinamika osesimmetrichnykh tel, nesushchikh zhidkost' (Russian). Kiev: Naukova Dumka (1992; Zbl 0861.73004)
Koval’, T. L. On the accuracy of normal approximation of regression coefficients of a random field. (English. Russian original) Zbl 0838.62089 Theory Probab. Math. Stat. 47, 41-48 (1993); translation from Teor. Jmovirn. Mat. Stat. 47, 39-47 (1992). Reviewer: Z.Rychlik (Lublin) MSC: 62M40 60F05 62F12 PDFBibTeX XMLCite \textit{T. L. Koval'}, Theory Probab. Math. Stat. 47, 1 (1992; Zbl 0838.62089); translation from Teor. Jmovirn. Mat. Stat. 47, 39--47 (1992)
Koval’, T. L. Estimate of the rate of convergence in a central limit theorem for two- parametric martingale-differences. (Russian) Zbl 0772.60014 Ukr. Mat. Zh. 44, No. 8, 1138-1141 (1992). Reviewer: A.V.Bulinskij (Moskva) MSC: 60F05 60G48 PDFBibTeX XMLCite \textit{T. L. Koval'}, Ukr. Mat. Zh. 44, No. 8, 1138--1141 (1992; Zbl 0772.60014) Full Text: DOI
Koval’, T. L. An estimate of the convergence rate in a central limit theorem for two- parameter martingale differences. (English. Russian original) Zbl 0783.60026 Ukr. Math. J. 44, No. 8, 1041-1044 (1992); translation from Ukr. Mat. Zh. 44, No. 8, 1138-1141 (1992). MSC: 60F05 60G48 PDFBibTeX XMLCite \textit{T. L. Koval'}, Ukr. Mat. Zh. 44, No. 8, 1138--1141 (1992; Zbl 0783.60026); translation from Ukr. Mat. Zh. 44, No. 8, 1138--1141 (1992) Full Text: DOI
Koval’chuk, T. V. On the convergence of distributions of functionals of an estimate for the correlation function of a stationary process in the presence of a trend. (Ukrainian) Zbl 0900.62484 Vīsn. Kiïv. Unīv., Mat. Mekh. 30, 35-44 (1988). MSC: 62M10 62E20 PDFBibTeX XMLCite \textit{T. V. Koval'chuk}, Visn. Kyïv. Univ., Mat. Mekh. 30, 35--44 (1988; Zbl 0900.62484)
Koval’chuk, T. V. On convergence of the distributions of functionals of the correlogram of a homogeneous random field with unknown mean. (English. Russian original) Zbl 0634.62094 Theory Probab. Math. Stat. 35, 45-53 (1987); translation from Teor. Veroyatn. Mat. Stat. 35, 44-51 (1986). Reviewer: M.Yadrenko MSC: 62M99 62F12 60G60 60F17 62M09 62E20 PDFBibTeX XMLCite \textit{T. V. Koval'chuk}, Theory Probab. Math. Stat. 35, 45--53 (1986; Zbl 0634.62094); translation from Teor. Veroyatn. Mat. Stat. 35, 44--51 (1986)
Kubenko, V. D.; Koval’chuk, P. S.; Krasnopol’skaya, T. S. Nonlinear interaction of forms of flexural vibrations of cylindrical shells (Nelinejnoe vzaimodejstvie form izgibnykh kolebanij tsilindricheskikh obolochek). (Russian) Zbl 0574.73079 Kiev: Naukova Dumka. 220 p. R. 2.50 (1984). Reviewer: A.Hanuška MSC: 74K15 74K25 74H45 74H99 74-02 74F10 PDFBibTeX XML
Kubenko, V. D.; Koval’chuk, P. S.; Krasnopol’skaya, T. S. Effect of initial camber on natural nonlinear vibrations of cylindrical shells. (English. Russian original) Zbl 0539.73075 Sov. Appl. Mech. 18, 34-39 (1982); translation from Prikl. Mekh. 18, No. 1, 43-49 (1982). MSC: 74H45 74K15 74K25 PDFBibTeX XMLCite \textit{V. D. Kubenko} et al., Sov. Appl. Mech. 18, 34--39 (1982; Zbl 0539.73075); translation from Prikl. Mekh. 18, No. 1, 43--49 (1982) Full Text: DOI
Koval’chuk, P. S.; Krasnopol’skaya, T. S.; Podchasov, N. P. Dynamic instability of circular cylindrical shells with initial camber. (English. Russian original) Zbl 0501.73040 Sov. Appl. Mech. 18, 208-212 (1982); translation from Prikl. Mekh. 18, No. 3, 28-33 (1982). MSC: 74H55 74K15 74K25 74H45 PDFBibTeX XMLCite \textit{P. S. Koval'chuk} et al., Sov. Appl. Mech. 18, 208--212 (1982; Zbl 0501.73040); translation from Prikl. Mekh. 18, No. 3, 28--33 (1982) Full Text: DOI
Koval’chuk, P. S.; Krasnopol’skaya, T. S. Resonance phenomena in nonlinear vibrations of cylindrical shells with initial imperfections. (English. Russian original) Zbl 0445.73084 Sov. Appl. Mech. 15, 867-872 (1980); translation from Prikl. Mekh. 15, No. 9, 100-107 (1979). MSC: 74K25 74H45 74K15 PDFBibTeX XMLCite \textit{P. S. Koval'chuk} and \textit{T. S. Krasnopol'skaya}, Sov. Appl. Mech. 15, 867--872 (1979; Zbl 0445.73084); translation from Prikl. Mekh. 15, No. 9, 100--107 (1979) Full Text: DOI