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Found 280 Documents (Results 1–100)

Volterra-type quadratic stochastic operators with a homogeneous tournament. (English. Russian original) Zbl 07803128

J. Math. Sci., New York 278, No. 3, 546-556 (2024); translation from Sovrem. Mat., Fundam. Napravl. 67, No. 4, 783-794 (2022).
MSC:  47-XX 34Dxx 37-XX
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Adomian decomposition method in the theory of nonlinear boundary-value problems. (English. Ukrainian original) Zbl 07800760

J. Math. Sci., New York 277, No. 2, 338-351 (2023); translation from Neliniĭni Kolyvannya 25, No. 4, 413-425 (2022).
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The existence of a unique fixed point of mappings generated by a multidimensional system with relay hysteresis. (English. Russian original) Zbl 1527.37023

Differ. Equ. 59, No. 7, 998-1002 (2023); translation from Differ. Uravn. 59, No. 7, 996-1000 (2023).
MSC:  37C25 34C55 47J40
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Nonlinear integrodifferential boundary-value problems with deviating argument unsolved with respect to the derivative. (English. Ukrainian original) Zbl 1510.45007

Ukr. Math. J. 74, No. 9, 1334-1347 (2023); translation from Ukr. Mat. Zh. 74, No. 9, 1170-1181 (2022).
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Nonlinear difference-algebraic boundary-value problem in the case of parametric resonance. (English. Ukrainian original) Zbl 07596708

J. Math. Sci., New York 265, No. 4, 703-717 (2022); translation from Neliniĭni Kolyvannya 24, No. 1, 128-140 (2021).
MSC:  47Axx 39Axx 34Axx
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Stability and asymptotically periodic solutions of hybrid systems with aftereffect. (English. Russian original) Zbl 1500.34065

J. Math. Sci., New York 262, No. 6, 855-862 (2022); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 168, 91-98 (2019).
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On approximate solutions of nonlinear boundary-value problems by the Newton-Kantorovich method. (English. Russian original) Zbl 1487.34071

J. Math. Sci., New York 258, No. 5, 594-617 (2021); translation from Neliniĭni Kolyvannya 23, No. 2, 162-183 (2020).
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Autonomous Noetherian boundary-value problem in the case of parametric resonance. (English. Ukrainian original) Zbl 1471.34050

J. Math. Sci., New York 256, No. 5, 713-725 (2021); translation from Neliniĭni Kolyvannya 23, No. 1, 134-144 (2020).
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Asymptotics of a solution to a singularly perturbed time-optimal control problem of transferring an object to a set. (English. Russian original) Zbl 1469.49004

Proc. Steklov Inst. Math. 313, Suppl. 1, S40-S53 (2021); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 26, No. 2, 132-146 (2020).
MSC:  49J15 34H05
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Symbolic investigation of eigenvectors for general solution of a system of ODEs with a symbolic coefficient matrix. (English. Russian original) Zbl 1477.34112

Program. Comput. Softw. 47, No. 1, 6-16 (2021); translation from Programmirovanie 47, No. 1, 11-24 (2021).
MSC:  34L15 34L16 68W30
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Nonlinear boundary-value problems unsolved with respect to the derivative. (English. Ukrainian original) Zbl 1462.34044

Ukr. Math. J. 72, No. 8, 1280-1293 (2021); translation from Ukr. Mat. Zh. 72, No. 8, 1106-1118 (2020).
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The Dirichlet problem for the fourth order nonlinear ordinary differential equations at resonance. (English) Zbl 1483.34042

J. Contemp. Math. Anal., Armen. Acad. Sci. 55, No. 5, 291-302 (2020) and Izv. Nats. Akad. Nauk Armen., Mat. 55, No. 5, 13-26 (2020).
MSC:  34B15
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Functional and differential inequalities and their applications to control problems. (English. Russian original) Zbl 1528.34014

Differ. Equ. 56, No. 11, 1440-1451 (2020); translation from Differ. Uravn. 56, No. 11, 1479-1490 (2020).
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On a singularly perturbed time-optimal control problem with two small parameters. (English. Russian original) Zbl 1443.93084

Proc. Steklov Inst. Math. 307, Suppl. 1, S34-S50 (2019); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 24, No. 2, 76-92 (2018).
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On fixed points of multivalued mappings in spaces with a vector-valued metric. (English. Russian original) Zbl 1436.54042

Proc. Steklov Inst. Math. 305, Suppl. 1, S191-S203 (2019); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 24, No. 1, 93-105 (2018).
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A numerical method for finding the optimal solution of a differential inclusion. (English) Zbl 1441.49006

Vestn. St. Petersbg. Univ., Math. 51, No. 4, 397-406 (2018); translation from Vestn. St-Peterbg. Univ., Ser. I, Mat. Mekh. Astron. 5(63), No. 4, 645-657 (2018).
MSC:  49J21 49J50 34A60
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On stability of perturbed semigroups in partially ordered Banach spaces. (English. Russian original) Zbl 06976982

J. Math. Sci., New York 233, No. 6, 853-874 (2018); translation from Sovrem. Mat., Fundam. Napravl. 59, 97-118 (2016).
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The Bohl-Perron theorem for hybrid linear systems with aftereffect. (English. Russian original) Zbl 1393.34069

J. Math. Sci., New York 230, No. 5, 775-781 (2018); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 132 (2016).
MSC:  34K06 34K20 34K25
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Solution of Tikhonov’s motion-separation problem using the modified Newton-Kantorovich theorem. (English. Russian original) Zbl 1400.34026

Comput. Math. Math. Phys. 58, No. 2, 223-229 (2018); translation from Zh. Vychisl. Mat. Mat. Fiz. 58, No. 2, 237-243 (2018).
MSC:  34A45 34E15 34A12
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Autonomous periodic boundary-value problem for a matrix differential equation. (English. Ukrainian original) Zbl 1383.34037

J. Math. Sci., New York 228, No. 3, 323-334 (2018); translation from Neliniĭni Kolyvannya 19, No. 4, 564-574 (2016).
MSC:  34B15 34A45 34E10
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Properties of the isolated solutions bounded on the entire axis for a system of nonlinear ordinary differential equations. (English. Russian original) Zbl 1499.34095

Ukr. Math. J. 68, No. 8, 1297-1304 (2017); translation from Ukr. Mat. Zh. 68, No. 8, 1132-1138 (2016).
MSC:  34A12 34A34
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On the existence of infinitely many eigenvalues in a nonlinear Sturm-Liouville problem arising in the theory of waveguides. (English. Russian original) Zbl 1384.78007

Differ. Equ. 53, No. 11, 1419-1427 (2017); translation from Differ. Uravn. 53, No. 11, 1453-1460 (2017).
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Weakly nonlinear matrix boundary-value problem in the case of parametric resonance. (English. Ukrainian original) Zbl 1372.34039

J. Math. Sci., New York 223, No. 3, 337-350 (2017); translation from Neliniĭni Kolyvannya 19, No. 2, 276-288 (2016).
MSC:  34A45 34B08 34E10
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Survey of the theory of extremal problems. (English) Zbl 1391.49002

Kusuoka, Shigeo (ed.) et al., Advances in mathematical economics. Vol. 20. Selected papers based on the presentations at the 6th conference on mathematical analysis in economic theory, Tokyo, Japan, January 26–29, 2015. Singapore: Springer (ISBN 978-981-10-0475-9/hbk; 978-981-10-0476-6/ebook). Advances in Mathematical Economics 20, 131-150 (2016).
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On the perturbation algorithm for the semidiscrete scheme for the evolution equation and estimation of the approximate solution error using semigroups. (English. Russian original) Zbl 1365.65151

Comput. Math. Math. Phys. 56, No. 7, 1269-1292 (2016); translation from Zh. Vychisl. Mat. Mat. Fiz. 56, No. 7, 1299-1322 (2016).
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Modified Kantorovich theorem and asymptotic approximations of solutions to singularly perturbed systems of ordinary differential equations. (English. Russian original) Zbl 1366.65073

Comput. Math. Math. Phys. 56, No. 11, 1859-1871 (2016); translation from Zh. Vychisl. Mat. Mat. Fiz. 56, No. 11, 1889-1901 (2016).
MSC:  65L11 65L05 34E15
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Almost periodic solutions of nonlinear discrete systems that can be not almost periodic in Bochner’s sense. (English. Ukrainian original) Zbl 1335.39022

J. Math. Sci., New York 212, No. 3, 335-348 (2016); translation from Neliniĭni Kolyvannya 17, No. 3, 407-418 (2014).
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