Результати для "1989"

Результати для "1989" Показ 1 - 50 результатів із 26157 Laminas_Feed_Writer 2 (https://getlaminas.org) https://harvester.nas.gov.ua/Search/Results?sort=last_indexed+desc&limit=50&lookfor=%221989%22&type=AllFields&lng=uk 26157 0 50 IVAN OLEKSANDROVYCH LUKOVS’KYI (24.09.1935–15.05.2024) Sat, 11 Apr 2026 01:00:39 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-9908 https://harvester.nas.gov.ua/Record/umjimathkievua-article-9908 V. Makarov, O. Mazko, O. Tymokha Стаття 2026 V. Makarov, O. Mazko, O. Tymokha 0 МОДАЛЬНИЙ АНАЛІЗ ГОРИЗОНТАЛЬНОЇ ОБОЛОНКОВОЇ КОНСТРУКЦІЇ ПРИ ВИБУХОВИХ ВПЛИВАХ Sat, 11 Apr 2026 01:00:15 +0000 https://harvester.nas.gov.ua/Record/oai:ojs2.journal-itm.dp.ua:article-172 https://harvester.nas.gov.ua/Record/oai:ojs2.journal-itm.dp.ua:article-172 KUCHERENKO, O. Ye. Стаття 2026 KUCHERENKO, O. Ye. 0 RADIOACTIVE CONTAMINATION OF GROUNDWATER IN THE CHORNOBYL EXCLUSION ZONE: CURRENT STATUS, LONG-TERM TRENDS, AND CHALLENGES IN MONITORING SYSTEM MODERNIZATION Wed, 08 Apr 2026 01:00:05 +0000 https://harvester.nas.gov.ua/Record/mcm-mathkpnueduua-article-355864 https://harvester.nas.gov.ua/Record/mcm-mathkpnueduua-article-355864 Бугай, Д.О. Стаття 2026 Бугай, Д.О. 0 70 років СМІРНОВУ Олексію Миколайовичу Thu, 02 Apr 2026 01:01:25 +0000 https://harvester.nas.gov.ua/Record/oai:oai.metalsandcasting.com:article-296 https://harvester.nas.gov.ua/Record/oai:oai.metalsandcasting.com:article-296 редакція Стаття 2025 редакція 0 AN OPEN RESONATOR WITH INTERNAL INHOMOGENEITIES Sat, 28 Mar 2026 02:00:06 +0000 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1491 https://harvester.nas.gov.ua/Record/rpra-journalorgua-article-1491 Kuzmychov, I. K. Стаття 2026 Kuzmychov, I. K. 0 Про користь від читання надгробних інскрипцій Thu, 26 Mar 2026 19:17:40 +0000 https://harvester.nas.gov.ua/Record/nasplib_isofts_kiev_ua-123456789-215690 https://harvester.nas.gov.ua/Record/nasplib_isofts_kiev_ua-123456789-215690 Гужинський, С. Стаття 2014 Гужинський, С. 0 Pyroelectric USB-joulemeters of pulsed laser radiation Thu, 26 Mar 2026 19:16:40 +0000 https://harvester.nas.gov.ua/Record/nasplib_isofts_kiev_ua-123456789-215659 https://harvester.nas.gov.ua/Record/nasplib_isofts_kiev_ua-123456789-215659 Samoylov, V.B. Стаття 2020 Samoylov, V.B. 0 New material based on polyurethane doped with azobenzene dyes in recording media for dynamic polarization holography Thu, 26 Mar 2026 19:16:36 +0000 https://harvester.nas.gov.ua/Record/nasplib_isofts_kiev_ua-123456789-215657 https://harvester.nas.gov.ua/Record/nasplib_isofts_kiev_ua-123456789-215657 Davidenko, N.A. Стаття 2020 Davidenko, N.A. 0 On the 100th birthday of academician V. S. Korolyuk Tue, 24 Mar 2026 03:46:09 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-9425 https://harvester.nas.gov.ua/Record/umjimathkievua-article-9425 , Редакційна колегія „Українського математичного журналу” Стаття 2026 , Редакційна колегія „Українського математичного журналу” 0 School-seminar “Nonlinear boundary value problems of mathematical physics and their applications” Tue, 24 Mar 2026 03:43:06 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-8856 https://harvester.nas.gov.ua/Record/umjimathkievua-article-8856 Samoilenko, A. M. Стаття 1990 Samoilenko, A. M. 0 Vladislav Fedorovych Babenko (to his 75th birthday) Tue, 24 Mar 2026 03:41:44 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-8712 https://harvester.nas.gov.ua/Record/umjimathkievua-article-8712 Motorny, V. P. Стаття 2025 Motorny, V. P. 0 Anatolii Naumovych Kochubei (to his75th birthday) Tue, 24 Mar 2026 03:39:13 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-8453 https://harvester.nas.gov.ua/Record/umjimathkievua-article-8453 Tymokha, O. M. Стаття 2024 Tymokha, O. M. 0 Volodymyr Olexandrovych Marchenko (to his 70-th Birthday) Tue, 24 Mar 2026 03:35:53 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-8042 https://harvester.nas.gov.ua/Record/umjimathkievua-article-8042 Berezansky , Yu. M. Стаття 1992 Berezansky , Yu. M. 0 Topological aspects of dynamic systems Tue, 24 Mar 2026 03:33:59 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7802 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7802 Sharko , V. V. Стаття 1992 Sharko , V. V. 0 Asymptotic analysis of a singularly perturbed linear system with a singular limiting beam of matrices Tue, 24 Mar 2026 03:33:57 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7801 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7801 Yakovets , V. P. Стаття 1992 Yakovets , V. P. 0 Nonhomogeneous evolution equations with pulse actions Tue, 24 Mar 2026 03:33:55 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7799 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7799 Samoilenko , A. M. Стаття 1992 Samoilenko , A. M. 0 Problems with free boundaries for the nonlinear evolution equation in problems of metallurgy, medicine, ecology Tue, 24 Mar 2026 03:33:51 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7796 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7796 Mitropolsky , Yu. A. Стаття 1992 Mitropolsky , Yu. A. 0 SRB measures for some stretched Hénon-like maps Tue, 24 Mar 2026 03:33:11 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7725 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7725 Jakobson, Michael Стаття 2024 Jakobson, Michael 0 Exact solutions with generalized separation of variables for the nonlinear heat equation with a source Tue, 24 Mar 2026 03:33:04 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7700 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7700 Barannyk, A. Стаття 2024 Barannyk, A. 0 Application of the second Lyapunov method for getting the conditions of stability in systems with quadratic right-hand side Tue, 24 Mar 2026 03:32:57 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7655 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7655 Khusainov, D. Стаття 2024 Khusainov, D. 0 Evolution of the Sharkovsky theorem Tue, 24 Mar 2026 03:32:55 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7641 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7641 Blokh, Alexander Стаття 2024 Blokh, Alexander 0 Approximation of generalized Poisson integrals by interpolating trigonometric polynomials Tue, 24 Mar 2026 03:32:43 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7523 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7523 Serdyuk, A. Стаття 2023 Serdyuk, A. 0 Uniform approximations by Fourier sums on the sets of convolutions of periodic functions of high smoothness Tue, 24 Mar 2026 03:32:35 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7411 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7411 Serdyuk, A. Стаття 2023 Serdyuk, A. 0 Realization of the exact three-point finite-difference schemes for the system of second-order ordinary differential equations Tue, 24 Mar 2026 03:32:25 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7373 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7373 Makarov, V. L. Стаття 2023 Makarov, V. L. 0 Method of local linear approximation in the theory of nonlinear impulsive systems Tue, 24 Mar 2026 03:32:23 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7347 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7347 Perestyuk , М. О. Стаття 2023 Perestyuk , М. О. 0 Convergence of Baum–Katz series for sums whose terms are elements of linear $m$ th order autoregressive sequence Tue, 24 Mar 2026 03:32:21 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7340 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7340 Ilienko, M. Стаття 2023 Ilienko, M. 0 Mykola Ivanovych Portenko (on his 80th birthday) Tue, 24 Mar 2026 03:32:04 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7250 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7250 Kopytko, B. I. Стаття 2023 Kopytko, B. I. 0 Evaluation and attainment of weighted performance measures in descriptor control systems Tue, 24 Mar 2026 03:31:49 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7167 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7167 Mazko, A. G. Стаття 2022 Mazko, A. G. 0 Approximation by Fourier sums in classes of Weyl – Nagy differentiable functions with high exponent of smoothness Tue, 24 Mar 2026 03:31:39 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7136 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7136 Serdyuk, A. S. Стаття 2022 Serdyuk, A. S. 0 Wiman-type inequality in multiple-circular domains: Lévy’s phenomenon and exceptional sets Tue, 24 Mar 2026 03:31:39 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7137 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7137 Kuryliak, A. O. Стаття 2022 Kuryliak, A. O. 0 Approximation of classes of periodic functions in one and many variables from the Nikol’skii – Besov and Sobolev spaces Tue, 24 Mar 2026 03:31:38 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7141 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7141 Romanyuk, A. S. Стаття 2022 Romanyuk, A. S. 0 Frequency locking of periodic solutions to differential equations with impulsive perturbations Tue, 24 Mar 2026 03:31:37 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7138 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7138 Dvornyk, A. V. Стаття 2022 Dvornyk, A. V. 0 Special exponential functions on lattices of simple Lie groups and allotropic modifications of carbon Tue, 24 Mar 2026 03:31:35 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7130 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7130 Nesterenko, M. O. Стаття 2022 Nesterenko, M. O. 0 Best orthogonal trigonometric approximations of the Nikol'skii – Besov-type classes of periodic functions in the space $B_{\infty,1}$ Tue, 24 Mar 2026 03:31:21 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7070 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7070 Hembars’ka, S. B. Стаття 2022 Hembars’ka, S. B. 0 Conditional and hidden infinite-dimensional symmetries of wave equations Tue, 24 Mar 2026 03:31:12 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7035 https://harvester.nas.gov.ua/Record/umjimathkievua-article-7035 Yehorchenko , I. A. Стаття 2022 Yehorchenko , I. A. 0 On nonlocal symmetries of a system of chemotaxis equations with derivative nonlinearity Tue, 24 Mar 2026 03:31:04 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6997 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6997 Serov, M. I. Стаття 2022 Serov, M. I. 0 Nonlocal transformations with additional variables. Forced symmetries Tue, 24 Mar 2026 03:31:02 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6995 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6995 Tychynin, V. A. Стаття 2022 Tychynin, V. A. 0 New algorithmic implementation of exact three-point difference schemes for systems of nonlinear ordinary differential equations of the second ord Tue, 24 Mar 2026 03:30:48 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6935 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6935 Kutniv, M. V. Стаття 2022 Kutniv, M. V. 0 Kolmogorov widths of the Nikol’skii – Besov classes of periodic functions of many variables in the space of quasi-continuous functions Tue, 24 Mar 2026 03:30:44 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6932 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6932 Romanyuk , A. S. Стаття 2022 Romanyuk , A. S. 0 On equicontinuity of families of mappings with one normalization condition by the prime ends Tue, 24 Mar 2026 03:30:39 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6887 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6887 Ilkevych, N. S. Стаття 2022 Ilkevych, N. S. 0 On the sets of divergence of multiple Fourier–Haar series Tue, 24 Mar 2026 03:30:38 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6886 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6886 Bitsadze, K. R. Стаття 2023 Bitsadze, K. R. 0 On the 100th birthday of outstanding scientist Ostap Stepanovych Parasyuk (20.12.1921 – 22.11.2007): Ostap Stepanovich Parasyuk Tue, 24 Mar 2026 03:30:33 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6873 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6873 Zagorodnii , A. G. Стаття 2022 Zagorodnii , A. G. 0 Estimates of approximation characteristics and properties of operators of the best approximation for the classes of periodic functions in the space $B_{1,1}$ Tue, 24 Mar 2026 03:30:00 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6755 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6755 Romanyuk, A. S. Стаття 2021 Romanyuk, A. S. 0 The exact solutions with generalized separation of variables of the nonlinear heat equation Tue, 24 Mar 2026 03:29:40 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6667 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6667 Barannyk, A. F. Стаття 2022 Barannyk, A. F. 0 An analog of the Men’shov – Trokhimchuk theorem for monogenic functions in a three-dimensional commutative algebra Tue, 24 Mar 2026 03:29:38 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6658 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6658 Tkachuk, M. V. Стаття 2021 Tkachuk, M. V. 0 Geometric structures on the orbits of loop diffeomorphism groups and related “heavenly-type” Hamiltonian systems. I Tue, 24 Mar 2026 03:29:27 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6614 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6614 Hentosh , O. E. Стаття 2022 Hentosh , O. E. 0 Continuous characterization of the Besov spaces of variable smoothness and integrability Tue, 24 Mar 2026 03:29:01 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6578 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6578 Benmahmoud, S. Стаття 2023 Benmahmoud, S. 0 Divergence of multivector fields on infinite-dimensional manifolds Tue, 24 Mar 2026 03:28:36 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6522 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6522 Bogdanskii, Yu. Стаття 2023 Bogdanskii, Yu. 0 Descriptive theory of determined chaos Tue, 24 Mar 2026 03:28:35 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6515 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6515 Sharkovs’kyi , О. М. Стаття 2023 Sharkovs’kyi , О. М. 0 Application of the Green–Samoilenko function and operator to the study of non-Lipschitz differential equations Tue, 24 Mar 2026 03:28:12 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6482 https://harvester.nas.gov.ua/Record/umjimathkievua-article-6482 Perestyuk , M. O. Стаття 2021 Perestyuk , M. O. 0