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      <title>Reconstruction of linear functionals on classes of analytic functions of two variables on the basis of generalized information</title>
      <pubDate>Tue, 24 Mar 2026 03:21:50 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5779</link>
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      <title>On M. G. Krein&amp;#039;s work in the theory of linear periodic Hamiltonian systems</title>
      <pubDate>Tue, 24 Mar 2026 03:21:49 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5774</link>
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      <title>Bernstein-type inequalities for  $\mathcal{L}$-splines</title>
      <pubDate>Tue, 24 Mar 2026 03:21:49 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5776</link>
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      <title>On connectedness of derivative sets</title>
      <pubDate>Tue, 24 Mar 2026 03:21:47 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5775</link>
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      <title>On M. G. Krein&amp;#039;s contribution to the moment problem</title>
      <pubDate>Tue, 24 Mar 2026 03:21:46 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5770</link>
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      <title>M. G. Krein&amp;#039;s investigations in the theory of entire and meromorphic functions and their further development</title>
      <pubDate>Tue, 24 Mar 2026 03:21:46 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5772</link>
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      <title>M. G. Krein&amp;#039;s ideas in the theory of orthogonal polynomials</title>
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      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5771</link>
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      <title>Theory of self-adjoint extensions of symmetric operators. entire operators and boundary-value problems</title>
      <pubDate>Tue, 24 Mar 2026 03:21:43 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5769</link>
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      <title>On M. G. Krein&amp;#039;s papers in the theory of spaces with an indefinite metric</title>
      <pubDate>Tue, 24 Mar 2026 03:21:42 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5766</link>
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      <title>New aspects of Krein&amp;#039;s extension theory</title>
      <pubDate>Tue, 24 Mar 2026 03:21:42 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5768</link>
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      <title>On time dependent orthogonal polynomials on the unit circle</title>
      <pubDate>Tue, 24 Mar 2026 03:21:41 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5767</link>
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      <title>Estimation of the solutions of the Sturm-Liouville equation</title>
      <pubDate>Tue, 24 Mar 2026 03:21:38 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5760</link>
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    <item>
      <title>Factorization of operators. Theory and applications</title>
      <pubDate>Tue, 24 Mar 2026 03:21:38 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5762</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5762</guid>
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    <item>
      <title>Mark Grigor&amp;#039;evich Krein</title>
      <pubDate>Tue, 24 Mar 2026 03:21:38 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5765</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5765</guid>
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    <item>
      <title>Uniqueness of solutions of boundary-value problems for operator-differential equations on a finite segment and on a semiaxis</title>
      <pubDate>Tue, 24 Mar 2026 03:21:37 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5761</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5761</guid>
      <author>Radzievskii, G. V.</author>
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    <item>
      <title>A relation between two results about entire functions of exponential type</title>
      <pubDate>Tue, 24 Mar 2026 03:21:36 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5759</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5759</guid>
      <author>Koosis, P.</author>
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      <dc:date>1994</dc:date>
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    <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>
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      <dc:date>1994</dc:date>
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    <item>
      <title>Mark Grigor&amp;#039;evich Krein in Kuibyshev (memoirs of a post-graduate student)</title>
      <pubDate>Tue, 24 Mar 2026 03:21:35 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5764</link>
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      <author>Lyubarskii, G. Ya.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
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      <slash:comments>0</slash:comments>
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    <item>
      <title>Uniqueness theorems for rational, algebraic, and algebroid functions</title>
      <pubDate>Tue, 24 Mar 2026 03:21:33 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5757</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5757</guid>
      <author>Gol&amp;#039;dberg, A. A.</author>
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      <dc:creator>Gol&amp;#039;dberg, A. A.</dc:creator>
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    <item>
      <title>On M. G. Krein&amp;#039;s works in the theory of representations and harmonic analysis on topological groups</title>
      <pubDate>Tue, 24 Mar 2026 03:21:32 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5756</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5756</guid>
      <author>Vainerman, L. I.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
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      <slash:comments>0</slash:comments>
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    <item>
      <title>A class of admissible functions in the principle of invariance of wave operators</title>
      <pubDate>Tue, 24 Mar 2026 03:21:32 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5758</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5758</guid>
      <author>Konstantinov, A. Yu.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Konstantinov, A. Yu.</dc:creator>
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    <item>
      <title>Spectral approach to white noise analysis</title>
      <pubDate>Tue, 24 Mar 2026 03:21:31 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5755</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5755</guid>
      <author>Berezansky, Yu. M.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Berezansky, Yu. M.</dc:creator>
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    <item>
      <title>Spectral theory of a string</title>
      <pubDate>Tue, 24 Mar 2026 03:21:29 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5754</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5754</guid>
      <author>Kats, I. S.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
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    <item>
      <title>Mark Grigor&amp;#039;evich Krein</title>
      <pubDate>Tue, 24 Mar 2026 03:21:26 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5752</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5752</guid>
      <author>Berezansky, Yu. M.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Berezansky, Yu. M.</dc:creator>
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    <item>
      <title>Unitary colligations and parametrization formulas</title>
      <pubDate>Tue, 24 Mar 2026 03:21:26 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5753</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5753</guid>
      <author>Arocena, R.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Arocena, R.</dc:creator>
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    <item>
      <title>On harmonic functions satisfying nonlocal boundary conditions</title>
      <pubDate>Tue, 24 Mar 2026 03:21:24 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5749</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5749</guid>
      <author>Eydelman, S. D.</author>
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      <dc:date>1994</dc:date>
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    <item>
      <title>Application of existence theorems to asymptotic decompositions</title>
      <pubDate>Tue, 24 Mar 2026 03:21:24 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5750</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5750</guid>
      <author>Khoma, L. G.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
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    <item>
      <title>The conference “Nonlinear problems of differential equations and mathematical physics. The second Bogolyubov readings”</title>
      <pubDate>Tue, 24 Mar 2026 03:21:24 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5751</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5751</guid>
      <author>Kolomiyets, V. G.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Kolomiyets, V. G.</dc:creator>
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    <item>
      <title>On one question of B. Amberg</title>
      <pubDate>Tue, 24 Mar 2026 03:21:22 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5748</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5748</guid>
      <author>Sysak, Ya. P.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Sysak, Ya. P.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>On the problem without initial conditions for a nonlinear degenerating parabolic system</title>
      <pubDate>Tue, 24 Mar 2026 03:21:21 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5747</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5747</guid>
      <author>Pukach, P. Ya.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
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    <item>
      <title>Existence and asymptotic behavior of solutions of an $n$-th-order differential equation partially solved with respect to derivative</title>
      <pubDate>Tue, 24 Mar 2026 03:21:20 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5746</link>
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      <dc:date>1994</dc:date>
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    <item>
      <title>On divergence of series of exponents representing functions regular in convex polygons</title>
      <pubDate>Tue, 24 Mar 2026 03:21:19 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5744</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5744</guid>
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      <title>On potentials of ergodic Markov chains</title>
      <pubDate>Tue, 24 Mar 2026 03:21:19 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5745</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5745</guid>
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      <title>Solution of volterra integral equations of the second kind with small nonlinearities by a spline-iteration method</title>
      <pubDate>Tue, 24 Mar 2026 03:21:17 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5742</link>
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      <title>Characteristics of power growth of a multidimensional series of exponents</title>
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      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5743</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5743</guid>
      <author>Makarov, V. Yu.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Makarov, V. Yu.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On the exponential dichotomy of pulse evolution systems</title>
      <pubDate>Tue, 24 Mar 2026 03:21:15 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5739</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5739</guid>
      <author>Tkachenko, V. I.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Tkachenko, V. I.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>A generalization of operator stochastic integrals</title>
      <pubDate>Tue, 24 Mar 2026 03:21:15 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5740</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5740</guid>
      <author>Gorbunov, A. V.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Gorbunov, A. V.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Asymptotic behavior of the coefficients of solutions of the Hill equation</title>
      <pubDate>Tue, 24 Mar 2026 03:21:14 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5741</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5741</guid>
      <author>Kochmanski, S.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Kochmanski, S.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Collocation method for solving singularly perturbed boundary-value problems by using cubic splines</title>
      <pubDate>Tue, 24 Mar 2026 03:21:13 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5738</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5738</guid>
      <author>Blatov, I. A.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Blatov, I. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>A numerical-analytic method for three-point boundary-value problems</title>
      <pubDate>Tue, 24 Mar 2026 03:21:12 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5736</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5736</guid>
      <author>Ronto, M. I.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Ronto, M. I.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Reducibility of nonlinear almost periodic systems of difference equations given on a torus</title>
      <pubDate>Tue, 24 Mar 2026 03:21:12 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5737</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5737</guid>
      <author>Martynyuk, D. I.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Martynyuk, D. I.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Testing hypotheses by using optimal statistical criteria. I</title>
      <pubDate>Tue, 24 Mar 2026 03:21:11 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5734</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5734</guid>
      <author>Kuk, Yu. V.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Kuk, Yu. V.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>A remark about orthogonal polynomials</title>
      <pubDate>Tue, 24 Mar 2026 03:21:11 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5735</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5735</guid>
      <author>Livinskii, V. O.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Livinskii, V. O.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Limit theorems for the number of crossings of a fixed plane by certain sequences of generalized dbffusion processes</title>
      <pubDate>Tue, 24 Mar 2026 03:21:09 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5732</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5732</guid>
      <author>Goshko, L. V.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Goshko, L. V.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Boundary-value problems for parametric ordinary differential equations</title>
      <pubDate>Tue, 24 Mar 2026 03:21:09 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5733</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5733</guid>
      <author>Karandzhulov, L. I.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Karandzhulov, L. I.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>New differentiability criteria for complex-valued functions</title>
      <pubDate>Tue, 24 Mar 2026 03:21:06 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5729</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5729</guid>
      <author>Alikulov, E. O.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Alikulov, E. O.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Classification of nonlocal boundary-value problems on a narrow strip</title>
      <pubDate>Tue, 24 Mar 2026 03:21:06 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5730</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5730</guid>
      <author>Borok, V. M.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Borok, V. M.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On oscillation of solutions of a nonautonomous quasilinear second-order equation</title>
      <pubDate>Tue, 24 Mar 2026 03:21:06 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5731</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5731</guid>
      <author>Vitrychenko, I. E.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Vitrychenko, I. E.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On the sixtieth birthday of Dmytro Yakovych Petrina, Corresponding Member of the Ukrainian Academy of Sciences</title>
      <pubDate>Tue, 24 Mar 2026 03:21:03 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5727</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5727</guid>
      <author>EditorialBoard</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>EditorialBoard</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On D. Ya. Petrina&amp;#039;s works in contemporary mathematical physics</title>
      <pubDate>Tue, 24 Mar 2026 03:21:03 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5728</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-5728</guid>
      <author>Gerasimenko, V. I.</author>
      <dc:format>Стаття</dc:format>
      <dc:date>1994</dc:date>
      <dc:creator>Gerasimenko, V. I.</dc:creator>
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