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Results for Showing 6951 - 7000 results of 310800 Laminas_Feed_Writer 2 (https://getlaminas.org) https://harvester.nas.gov.ua/Search/Results?sort=last_indexed+desc&limit=50&page=140&type=Publisher&lng=en 310800 6950 50 On the approximation of functions by polynomials and entire functions of exponential type Tue, 24 Mar 2026 02:05:21 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1439 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1439 Trigub, R. M. Article 2019 Trigub, R. M. 0 On the joint approximation of a function and its derivatives in the mean Tue, 24 Mar 2026 02:05:20 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1436 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1436 Motornaya, O. V. Article 2019 Motornaya, O. V. 0 On Cèsaro and Copson norms of nonnegative sequences Tue, 24 Mar 2026 02:05:17 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1433 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1433 Kolyada, V. I. Article 2019 Kolyada, V. I. 0 Estimation of the rate of decrease (vanishing) of a function in terms of relative oscillations Tue, 24 Mar 2026 02:05:17 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1435 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1435 Korenovskii, A. A. Article 2019 Korenovskii, A. A. 0 Quasiunconditional basis property of the Faber – Schauder system Tue, 24 Mar 2026 02:05:16 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1432 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1432 Grigoryan, M. G. Article 2019 Grigoryan, M. G. 0 On one estimate of divided differences and its applications Tue, 24 Mar 2026 02:05:16 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1434 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1434 Kopotun, K. A. Article 2019 Kopotun, K. A. 0 Resonant equations with classical orthogonal polynomials. I Tue, 24 Mar 2026 02:05:13 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1431 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1431 Gavrilyuk, I. P. Article 2019 Gavrilyuk, I. P. 0 On the estimates of widths of the classes of functions defined by the generalized moduli of continuity and majorants in the weighted space $L_{2x} (0,1)$ Tue, 24 Mar 2026 02:05:12 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1430 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1430 Vakarchuk, S. B. Article 2019 Vakarchuk, S. B. 0 Piecewise-polynomial approximations for the solutions of impulsive differential equations Tue, 24 Mar 2026 02:05:10 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1429 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1429 Bilenko, V. I. Article 2019 Bilenko, V. I. 0 Vladyslav Kyrylovych Dzyadyk (on his 100th birthday) Tue, 24 Mar 2026 02:05:09 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1426 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1426 Holub, A. P. Article 2019 Holub, A. P. 0 One inequality of the Landau – Kolmogorov type for periodic functions of two variable Tue, 24 Mar 2026 02:05:09 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1428 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1428 Babenko, V. F. Article 2019 Babenko, V. F. 0 Application of Dzyadyk’s polynomial kernels in the constructive function theory Tue, 24 Mar 2026 02:05:08 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1427 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1427 Andrievskii, V. V. Article 2019 Andrievskii, V. V. 0 On the solvability of the main inverse problem of stochastic differential systems Tue, 24 Mar 2026 02:05:06 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1425 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1425 Ibraeva, G. T. Article 2019 Ibraeva, G. T. 0 Asymptotic estimates for the solutions of a differential-functional equation with linear delay Tue, 24 Mar 2026 02:05:05 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1424 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1424 Bel’skii, D. V. Article 2019 Bel’skii, D. V. 0 On the post-Darwin approximation of the Maxwell – Lorentz equations of motion of point charges in the absence of neutrality Tue, 24 Mar 2026 02:05:04 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1423 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1423 Skrypnik, W. I. Article 2019 Skrypnik, W. I. 0 Green’s functional for higher-order ordinary differential equations with general nonlocal conditions and variable principal coefficient Tue, 24 Mar 2026 02:05:03 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1422 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1422 Özen, K. Article 2019 Özen, K. 0 On the asymptotic of solutions of second-order differential equations with rapidly varying nonlinearities Tue, 24 Mar 2026 02:05:02 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1420 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1420 Evtukhov, V. M. Article 2019 Evtukhov, V. M. 0 Antinormal composition operators on $L^2$ -space of an atomic measure space Tue, 24 Mar 2026 02:05:01 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1421 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1421 Chandra, H. Article 2019 Chandra, H. 0 Space-like surfaces in Minkowski space $E^4_1$ with pointwise 1-type Gauss map Tue, 24 Mar 2026 02:04:58 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1419 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1419 Dursun, U. Article 2019 Dursun, U. 0 On 2-dimensional surfaces in 3-dimensional and 4-dimensional Euclidean spaces. Results and unsolved problems Tue, 24 Mar 2026 02:04:57 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1416 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1416 Aminov, Yu. A. Article 2019 Aminov, Yu. A. 0 Existence of positive solutions for a coupled system of nonlinear fractional differential equations Tue, 24 Mar 2026 02:04:57 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1417 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1417 Ghanmi, A. Article 2019 Ghanmi, A. 0 Correctness of one nonlocal boundary-value problem with constant coefficient for the nonlinear mixed-type equation of the second kind of the second order in the space Tue, 24 Mar 2026 02:04:57 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1418 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1418 Dzhamalov, S. Z. Article 2019 Dzhamalov, S. Z. 0 Nonlinear elliptic equations with measure data in Orlicz spaces Tue, 24 Mar 2026 02:04:55 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1290 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1290 Aberqi, A. Article 2021 Aberqi, A. 0 Univalence criteria and quasiconformal extension of a general integral operator Tue, 24 Mar 2026 02:04:53 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1148 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1148 Deniz, E. Article 2022 Deniz, E. 0 Embedding theorems and maximal subsemigroups of some linear transformation semigroups with restricted range Tue, 24 Mar 2026 02:04:52 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1289 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1289 Sommanee, W. Article 2021 Sommanee, W. 0 Stechkin-type estimate for nearly copositive approximation of periodic functions Tue, 24 Mar 2026 02:04:51 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1127 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1127 Dzyubenko, G. A. Article 2020 Dzyubenko, G. A. 0 Classical solutions of time-fractional quasilinear reaction-diffusion systems Tue, 24 Mar 2026 02:04:51 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1147 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1147 Krasnoschok, M. Article 2025 Krasnoschok, M. 0 Generalization of Abel and Dirichlet signs Tue, 24 Mar 2026 02:04:50 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1141 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1141 Slyusarchuk, V. Yu. Article 2020 Slyusarchuk, V. Yu. 0 Volterra-type operator on the subclasses of univalent functions Tue, 24 Mar 2026 02:04:47 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1116 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1116 Mahboobi, M. Article 2022 Mahboobi, M. 0 On multidimensional Ostrowski type inequalities Tue, 24 Mar 2026 02:04:47 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1125 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1125 Kovalenko, О. V. Article 2020 Kovalenko, О. V. 0 Estimation of the maximum product of inner radii of mutually disjoint domains Tue, 24 Mar 2026 02:04:45 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1106 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1106 Bakhtin, O. K. Article 2020 Bakhtin, O. K. 0 Optimal recovery of elements from Hilbert space and their scalar products by Fourier coefficients known with error Tue, 24 Mar 2026 02:04:45 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1107 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1107 Gunko, M. S. Article 2020 Gunko, M. S. 0 On groups with formational subnormal strictly 2-maximal subgroups Tue, 24 Mar 2026 02:04:45 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1115 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1115 Monakhov, V. S. Article 2021 Monakhov, V. S. 0 Jordan regular units in rings and group rings Tue, 24 Mar 2026 02:04:43 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1130 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1130 Kumari, P. Article 2023 Kumari, P. 0 Initial boundary-value problem for parabolic systems in dihedral domains Tue, 24 Mar 2026 02:04:42 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1094 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1094 Duong, P. T. Article 2020 Duong, P. T. 0 The fictitious domain method and homotopy as a new alternative for multidimensional partial differential equations in domains of any shape Tue, 24 Mar 2026 02:04:42 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1101 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1101 V.L. Makarov Article 2020 V.L. Makarov 0 Weakly periodic ground states for the λ-model Tue, 24 Mar 2026 02:04:41 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1095 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1095 Mukhamedov, Farrukh M. Article 2020 Mukhamedov, Farrukh M. 0 On equicontinuous families of mappings of metric spaces Tue, 24 Mar 2026 02:04:40 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1075 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1075 Sevost'yanov, E. A. Article 2020 Sevost'yanov, E. A. 0 Recurrences and congruences for higher order geometric polynomials and related numbers Tue, 24 Mar 2026 02:04:40 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1080 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1080 Kargın, L. Article 2021 Kargın, L. 0 Averaging in boundary-value problems for systems of differential and integrodifferential equations Tue, 24 Mar 2026 02:04:36 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1071 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1071 Mynbayeva, S. T. Article 2020 Mynbayeva, S. T. 0 Kolmogorov type inequalities for norms of fractional derivatives of functions defined on the positive half-line Tue, 24 Mar 2026 02:04:36 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1074 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1074 Kozynenko, O. Article 2020 Kozynenko, O. 0 Mean-square approximation by an angle in $L_2$ and the values of quasiwidths for some classes of functions Tue, 24 Mar 2026 02:04:33 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1064 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1064 Shabozov, M. Sh. Article 2020 Shabozov, M. Sh. 0 Unitary subgroups of commutative group algebras of characteristic two Tue, 24 Mar 2026 02:04:33 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1068 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1068 Laver, V. Article 2020 Laver, V. 0 Characterization of some finite simple groups by the set of orders of vanishing elements and order Tue, 24 Mar 2026 02:04:33 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1069 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1069 Askary, S. Article 2021 Askary, S. 0 Bounded solutions of a system of linear inhomogeneous differential equations of the first order with rectangular matrices Tue, 24 Mar 2026 02:04:31 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1059 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1059 Boichuk, A. A. Article 2020 Boichuk, A. A. 0 Boundedness of $l$-index and completely regular growth of entire functions Tue, 24 Mar 2026 02:04:29 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1048 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1048 Bandura, A. I. Article 2020 Bandura, A. I. 0 Generalized Picone identity for Finsler $p$-Laplacian and its applications Tue, 24 Mar 2026 02:04:29 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1050 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1050 Dwivedi, G. Article 2021 Dwivedi, G. 0 Exponentially dichotomous difference equations with piecewise constant operator coefficients Tue, 24 Mar 2026 02:04:28 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1052 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1052 Slyusarchuk, V. Yu. Article 2020 Slyusarchuk, V. Yu. 0 Initial seven coefficient estimates for a subclass of bi-starlike functions Tue, 24 Mar 2026 02:04:27 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1046 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1046 Janani, T. Article 2021 Janani, T. 0 On $\sigma$-subnormal subgroups of finite 3'-groups Tue, 24 Mar 2026 02:04:25 +0000 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1037 https://harvester.nas.gov.ua/Record/umjimathkievua-article-1037 Kamornikov, S. F. Article 2020 Kamornikov, S. F. 0