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    <item>
      <title>Щодо питання про якість підготовки фахівців в галузі чорної металургії</title>
      <pubDate>Thu, 02 Apr 2026 01:00:51 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/oai:oai.metalsandcasting.com:article-112</link>
      <guid>https://harvester.nas.gov.ua/Record/oai:oai.metalsandcasting.com:article-112</guid>
      <author>Назюта, Л.Ю.</author>
      <dc:format>Article</dc:format>
      <dc:date>2023</dc:date>
      <dc:creator>Назюта, Л.Ю.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Ступницькі в контексті історії руської шляхти Перемишльської землі XIV–XVIII ст. (походження, генеалогія, демографічний і соціальний розвиток)</title>
      <pubDate>Thu, 26 Mar 2026 19:17:15 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/nasplib_isofts_kiev_ua-123456789-215684</link>
      <guid>https://harvester.nas.gov.ua/Record/nasplib_isofts_kiev_ua-123456789-215684</guid>
      <author>Смуток, І.</author>
      <dc:format>Article</dc:format>
      <dc:date>2014</dc:date>
      <dc:creator>Смуток, І.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Naum Ilyich Akhiezer (on his 70th birthday)	</title>
      <pubDate>Tue, 24 Mar 2026 03:40:19 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8562</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8562</guid>
      <author>Editorial Board</author>
      <dc:format>Article</dc:format>
      <dc:date>1971</dc:date>
      <dc:creator>Editorial Board</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Yuri Dmitrievich Sokolov </title>
      <pubDate>Tue, 24 Mar 2026 03:40:10 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8516</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8516</guid>
      <author>Mitropolsky, Yu. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>1971</dc:date>
      <dc:creator>Mitropolsky, Yu. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Nikolai Ivanovich Muskhelishvili (on his 80th birthday)</title>
      <pubDate>Tue, 24 Mar 2026 03:39:36 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8478</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8478</guid>
      <author>Mitropolsky, Yu. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>1970</dc:date>
      <dc:creator>Mitropolsky, Yu. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Otto Yulievich Shmidt (on his 80th birth) </title>
      <pubDate>Tue, 24 Mar 2026 03:38:29 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8328</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8328</guid>
      <author>Chernikov, S. N.</author>
      <dc:format>Article</dc:format>
      <dc:date>1971</dc:date>
      <dc:creator>Chernikov, S. N.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Yury Dmitrievich Sokolov (on his seventieth birthday)</title>
      <pubDate>Tue, 24 Mar 2026 03:38:16 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8316</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-8316</guid>
      <author>Mitropolsky, Y. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>1966</dc:date>
      <dc:creator>Mitropolsky, Y. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>О некоторых предельных теоремах для условных распределений и о связанных с ними задачах математической статистики</title>
      <pubDate>Tue, 24 Mar 2026 03:33:40 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-7755</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-7755</guid>
      <author>Гихман, И. И.</author>
      <dc:format>Article</dc:format>
      <dc:date>1953</dc:date>
      <dc:creator>Гихман, И. И.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Inequalities of the Markov–Nikolskii type in regions with zero interior angles in Bergman space</title>
      <pubDate>Tue, 24 Mar 2026 03:32:18 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-7322</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-7322</guid>
      <author>Özkartepe, P.</author>
      <dc:format>Article</dc:format>
      <dc:date>2023</dc:date>
      <dc:creator>Özkartepe, P.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Professor Boris Yakovlevich Bukreev (On the occasion of the 90th birthday and 65th scientific and pedagogical activity)</title>
      <pubDate>Tue, 24 Mar 2026 03:27:24 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6409</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6409</guid>
      <author>Editorial board, .</author>
      <dc:format>Article</dc:format>
      <dc:date>1950</dc:date>
      <dc:creator>Editorial board, .</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Some characterizations of three-dimensional trans-Sasakian manifolds admitting η- Ricci solitons and trans-Sasakian manifolds as Kagan subprojective space</title>
      <pubDate>Tue, 24 Mar 2026 03:25:50 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6047</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-6047</guid>
      <author>Sarkar, A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2020</dc:date>
      <dc:creator>Sarkar, A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Boundary-value problems for the heat conduction equation with a fractional derivative in the boundary conditions. Difference methods for numerical realization of these problems</title>
      <pubDate>Tue, 24 Mar 2026 03:24:20 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5932</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5932</guid>
      <author>Berezovsky, A. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>1993</dc:date>
      <dc:creator>Berezovsky, A. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Mark Grigor&amp;#039;evich Krein (recollections)</title>
      <pubDate>Tue, 24 Mar 2026 03:21:36 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5763</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5763</guid>
      <author>Levin, B. Ya.</author>
      <dc:format>Article</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Levin, B. Ya.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Institute of Mathematics of The Ukrainian National Academy of Sciences: 60 years of development</title>
      <pubDate>Tue, 24 Mar 2026 03:19:16 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5606</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5606</guid>
      <author>Mitropolskiy, Yu. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Mitropolskiy, Yu. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Evgenii Yakovlevich Remez</title>
      <pubDate>Tue, 24 Mar 2026 03:15:07 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5355</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5355</guid>
      <author>Dzyadyk, V. K.</author>
      <dc:format>Article</dc:format>
      <dc:date>1996</dc:date>
      <dc:creator>Dzyadyk, V. K.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On V.N. Koshlyakov’s works in mechanics and its applications</title>
      <pubDate>Tue, 24 Mar 2026 03:11:24 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5144</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5144</guid>
      <author>Kalinovich, V. N.</author>
      <dc:format>Article</dc:format>
      <dc:date>1997</dc:date>
      <dc:creator>Kalinovich, V. N.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>50 Years of “Ukrainskii Matematicheskii Zhurnal”</title>
      <pubDate>Tue, 24 Mar 2026 03:02:40 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-4644</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-4644</guid>
      <author>Mitropolskiy, Yu. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>1999</dc:date>
      <dc:creator>Mitropolskiy, Yu. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Naum Il&amp;#039;ich Akhiezer (on his 100-th birthday)</title>
      <pubDate>Tue, 24 Mar 2026 02:56:05 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-4250</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-4250</guid>
      <author>Marchenko, V. O.</author>
      <dc:format>Article</dc:format>
      <dc:date>2001</dc:date>
      <dc:creator>Marchenko, V. O.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Cauchy problem with Riesz operator of fractional differentiation</title>
      <pubDate>Tue, 24 Mar 2026 02:47:37 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3716</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3716</guid>
      <author>Litovchenko, V. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2005</dc:date>
      <dc:creator>Litovchenko, V. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Best Approximations and Widths of Classes of Convolutions of Periodic Functions of High Smoothness</title>
      <pubDate>Tue, 24 Mar 2026 02:46:33 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3655</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3655</guid>
      <author>Serdyuk, A. S.</author>
      <dc:format>Article</dc:format>
      <dc:date>2005</dc:date>
      <dc:creator>Serdyuk, A. S.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On the Malmquist Theorem for Solutions of Differential Equations in the Neighborhood of an Isolated Singular Point</title>
      <pubDate>Tue, 24 Mar 2026 02:45:50 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3617</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3617</guid>
      <author>Mokhonko, A. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2005</dc:date>
      <dc:creator>Mokhonko, A. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On minimization of one integral functional by the Ritz method</title>
      <pubDate>Tue, 24 Mar 2026 02:44:28 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3540</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3540</guid>
      <author>Minenko, A. S.</author>
      <dc:format>Article</dc:format>
      <dc:date>2006</dc:date>
      <dc:creator>Minenko, A. S.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Investigation of one convective Stefan problem by the Ritz method</title>
      <pubDate>Tue, 24 Mar 2026 02:42:02 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3410</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3410</guid>
      <author>Minenko, A. S.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Minenko, A. S.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>General Kloosterman sums over ring of Gaussian integers</title>
      <pubDate>Tue, 24 Mar 2026 02:41:29 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3381</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3381</guid>
      <author>Varbanets, S. P.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Varbanets, S. P.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Best M-term trigonometric approximations of the classes of periodic functions of many variables in the space Lq</title>
      <pubDate>Tue, 24 Mar 2026 02:38:46 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3237</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3237</guid>
      <author>Konohrai, A. F.</author>
      <dc:format>Article</dc:format>
      <dc:date>2008</dc:date>
      <dc:creator>Konohrai, A. F.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Basic properties and applications of graded fractal bundles related to Clifford structures: An introduction</title>
      <pubDate>Tue, 24 Mar 2026 02:37:44 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3179</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3179</guid>
      <author>Castillo, Alvarado F. L.</author>
      <dc:format>Article</dc:format>
      <dc:date>2008</dc:date>
      <dc:creator>Castillo, Alvarado F. L.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Best orthogonal trigonometric approximations of the classes $B^{Ω}_{p,θ}$ of periodic functions of many variables</title>
      <pubDate>Tue, 24 Mar 2026 02:36:31 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3115</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3115</guid>
      <author>Voitenko, S. P.</author>
      <dc:format>Article</dc:format>
      <dc:date>2009</dc:date>
      <dc:creator>Voitenko, S. P.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Trigonometric and orthoprojection widths of classes of periodic functions of many variables</title>
      <pubDate>Tue, 24 Mar 2026 02:36:21 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3106</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3106</guid>
      <author>Romanyuk, A. S.</author>
      <dc:format>Article</dc:format>
      <dc:date>2009</dc:date>
      <dc:creator>Romanyuk, A. S.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Conditions for the stability of an impulsive linear equation with pure delay</title>
      <pubDate>Tue, 24 Mar 2026 02:36:05 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3092</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3092</guid>
      <author>Ivanov, I. L.</author>
      <dc:format>Article</dc:format>
      <dc:date>2009</dc:date>
      <dc:creator>Ivanov, I. L.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Best $M$-Term trigonometric approximations of the classes $B^{Ω}_{p,θ}$  of periodic functions of many variables</title>
      <pubDate>Tue, 24 Mar 2026 02:36:02 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3091</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3091</guid>
      <author>Voitenko, S. P.</author>
      <dc:format>Article</dc:format>
      <dc:date>2009</dc:date>
      <dc:creator>Voitenko, S. P.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Approximative characteristics of the isotropic classes of periodic functions of many variables</title>
      <pubDate>Tue, 24 Mar 2026 02:35:03 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3036</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3036</guid>
      <author>Romanyuk, A. S.</author>
      <dc:format>Article</dc:format>
      <dc:date>2009</dc:date>
      <dc:creator>Romanyuk, A. S.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On the convergence of positive increasing functions to infinity</title>
      <pubDate>Tue, 24 Mar 2026 02:33:31 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2956</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2956</guid>
      <author>Buldygin, V. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>2010</dc:date>
      <dc:creator>Buldygin, V. V.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>On uniqueness theorems for holomorphic curves sharing hypersurfaces without counting multiplicity</title>
      <pubDate>Tue, 24 Mar 2026 02:29:22 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2741</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2741</guid>
      <author>Phuong, Ha Tran</author>
      <dc:format>Article</dc:format>
      <dc:date>2011</dc:date>
      <dc:creator>Phuong, Ha Tran</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Karamata theorem for regularly log-periodic functions</title>
      <pubDate>Tue, 24 Mar 2026 02:28:05 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2672</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2672</guid>
      <author>Buldygin, V. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>2012</dc:date>
      <dc:creator>Buldygin, V. V.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Kolmogorov widths of the classes $B^{\Omega}_{p, \theta}$ of periodic functions of many variables in the space $L_q$</title>
      <pubDate>Tue, 24 Mar 2026 02:27:56 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2668</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2668</guid>
      <author>Solich, K. V.</author>
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      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2192</link>
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      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-2087</link>
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      <title>On Fundamental Theorems for Holomorphic Curves on the Annuli</title>
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