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    <item>
      <title>On finite $A$-groups in which all nonmetacyclic subgroups are complementable</title>
      <pubDate>Tue, 24 Mar 2026 03:44:16 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9138</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9138</guid>
      <author>Baryshovets , P. P.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Baryshovets , P. P.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>The 11th International Conference on Nonlineal Oscillations</title>
      <pubDate>Tue, 24 Mar 2026 03:44:14 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9132</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9132</guid>
      <author>Mitropolsky , Yu. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Mitropolsky , Yu. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On quasi-entering flow for the system $M/G/1/\infty$</title>
      <pubDate>Tue, 24 Mar 2026 03:44:13 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9130</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9130</guid>
      <author>Falin , G. I.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Falin , G. I.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Stability estimates of certain methods of approximation by local splines</title>
      <pubDate>Tue, 24 Mar 2026 03:44:13 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9131</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9131</guid>
      <author>Khizha , A. L.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Khizha , A. L.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>High-frequency kernel in the algorithm of function restoration from the projections for diverging beams</title>
      <pubDate>Tue, 24 Mar 2026 03:44:12 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9128</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9128</guid>
      <author>Tarasenko-Zelenaya , L. I.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Tarasenko-Zelenaya , L. I.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>On inequalities of the Turan type in certain integral metrics</title>
      <pubDate>Tue, 24 Mar 2026 03:44:10 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9129</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9129</guid>
      <author>Tyrygin , I. Ya.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Tyrygin , I. Ya.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Application of asymptotic method to the study of one hyperbolic impulse system</title>
      <pubDate>Tue, 24 Mar 2026 03:44:09 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9126</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9126</guid>
      <author>Rogovchenko, S. P.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Rogovchenko, S. P.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Approximation method in one boundary value problem for linear differential equation with polynomial coefficients</title>
      <pubDate>Tue, 24 Mar 2026 03:44:09 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9127</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9127</guid>
      <author>Sinaisky , E. S.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Sinaisky , E. S.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Certain problems of existence of invariant toroidal sets in the systems of difference equations</title>
      <pubDate>Tue, 24 Mar 2026 03:44:07 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9125</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9125</guid>
      <author>Pankov , V. G.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Pankov , V. G.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Estimate of the convergence rate of the interpolation polynomial derivative on the classes of differentiable functions</title>
      <pubDate>Tue, 24 Mar 2026 03:44:06 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9122</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9122</guid>
      <author>Kushpel , A. K.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Kushpel , A. K.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Central limiting theorem in the Banach space</title>
      <pubDate>Tue, 24 Mar 2026 03:44:06 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9123</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9123</guid>
      <author>Matsak , I. К.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Matsak , I. К.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On tensor products of unitary representations $SL_3(R)$</title>
      <pubDate>Tue, 24 Mar 2026 03:44:06 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9124</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9124</guid>
      <author>Neretin , Yu. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Neretin , Yu. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Wiener process in a thin domain</title>
      <pubDate>Tue, 24 Mar 2026 03:44:04 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9120</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9120</guid>
      <author>Gasanenko , V. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Gasanenko , V. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Biharmonic potentials and plane isotropic fields of displacement</title>
      <pubDate>Tue, 24 Mar 2026 03:44:04 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9121</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9121</guid>
      <author>Kovalev , V. F.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Kovalev , V. F.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Amplified contour-body theorems for subharmonic functions</title>
      <pubDate>Tue, 24 Mar 2026 03:44:02 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9118</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9118</guid>
      <author>Tamrazov , P. M.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Tamrazov , P. M.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On the integral function derivative</title>
      <pubDate>Tue, 24 Mar 2026 03:44:02 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9119</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9119</guid>
      <author>Sheremeta , M. N.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Sheremeta , M. N.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Algebras of symmetries of completely integrable dynamic systems</title>
      <pubDate>Tue, 24 Mar 2026 03:44:01 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9115</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9115</guid>
      <author>Samoilenko , V. Gr.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Samoilenko , V. Gr.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Approximation by the Fourier operators of the functions preset on a real axis</title>
      <pubDate>Tue, 24 Mar 2026 03:44:01 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9116</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9116</guid>
      <author>Stepanets , A. I.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Stepanets , A. I.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Asymptotic theory of $U$-statistics</title>
      <pubDate>Tue, 24 Mar 2026 03:43:58 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9113</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9113</guid>
      <author>Korolyuk , V. S.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Korolyuk , V. S.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On motion equations for a heavy solid in the Rodrigues-Hamilton parameters</title>
      <pubDate>Tue, 24 Mar 2026 03:43:58 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9114</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9114</guid>
      <author>Koshlyakov , V. N.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Koshlyakov , V. N.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Asymptotic behaviour of the solution of Cauchy’s problem for stochastic equation of parabolic type</title>
      <pubDate>Tue, 24 Mar 2026 03:43:57 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9112</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9112</guid>
      <author>Dorogovtsev , A. Ya.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Dorogovtsev , A. Ya.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Limiting theorem for the parametrical stochastic operator systems</title>
      <pubDate>Tue, 24 Mar 2026 03:43:56 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9111</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9111</guid>
      <author>Butsan , G. P.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Butsan , G. P.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On observability of linear and bilinear systems of the Hilbert space</title>
      <pubDate>Tue, 24 Mar 2026 03:43:55 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9108</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9108</guid>
      <author>Belikov , S. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Belikov , S. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On Kolmogorov’s statistics in case of piecewise-continuous distribution function</title>
      <pubDate>Tue, 24 Mar 2026 03:43:55 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9109</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9109</guid>
      <author>Bondarev , В. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Bondarev , В. V.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Commutating self-conjugate expansion of the system of Hermitian operators</title>
      <pubDate>Tue, 24 Mar 2026 03:43:55 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9110</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9110</guid>
      <author>Bokhonov , Yu. E.</author>
      <dc:format>Article</dc:format>
      <dc:date>1988</dc:date>
      <dc:creator>Bokhonov , Yu. E.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Analysis of perturbations of singular values in concatenated matrices</title>
      <pubDate>Tue, 24 Mar 2026 03:43:53 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9103</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9103</guid>
      <author>Shamrai, M.</author>
      <dc:format>Article</dc:format>
      <dc:date>2026</dc:date>
      <dc:creator>Shamrai, M.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On the domain of analytic continuation of Lauricella–Saran’s hypergeometric functions $F_M$ and their ratios</title>
      <pubDate>Tue, 24 Mar 2026 03:43:52 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9105</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9105</guid>
      <author>Dmytryshyn, R.</author>
      <dc:format>Article</dc:format>
      <dc:date>2026</dc:date>
      <dc:creator>Dmytryshyn, R.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Balancing sign of the locally compact group	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:49 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9071</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9071</guid>
      <author>Pestov, V. G.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
      <dc:creator>Pestov, V. G.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Approximate solution of singular integral first type equations by the method of orthogonal polynomials	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:48 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9070</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9070</guid>
      <author>Noreddin, M. M.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
      <dc:creator>Noreddin, M. M.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>The Mors numbers and minimal Mors functions on the non-singly-connected manifolds	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:48 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9072</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9072</guid>
      <author>Sharko, V. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
      <dc:creator>Sharko, V. V.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Existence theorem for refined order of analytical functions </title>
      <pubDate>Tue, 24 Mar 2026 03:43:46 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9068</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9068</guid>
      <author>Kasana, Kh. S.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
      <dc:creator>Kasana, Kh. S.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Non-local Stefan-type problem for the hyperbolic first order system </title>
      <pubDate>Tue, 24 Mar 2026 03:43:46 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9069</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9069</guid>
      <author>Kirilich, V. M.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
      <dc:creator>Kirilich, V. M.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Sharp bound for the second Hankel determinant for a $q$-starlike function associated with the $q$-exponential function</title>
      <pubDate>Tue, 24 Mar 2026 03:43:46 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9106</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9106</guid>
      <author>Kumar, Karri Sanjay</author>
      <dc:format>Article</dc:format>
      <dc:date>2026</dc:date>
      <dc:creator>Kumar, Karri Sanjay</dc:creator>
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    <item>
      <title>On Dirichlet’s problem for the elasticity theory operator </title>
      <pubDate>Tue, 24 Mar 2026 03:43:45 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9065</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9065</guid>
      <author>Bulavenko, E. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
      <dc:creator>Bulavenko, E. V.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Mathematical description of the charged particles system near the surface of the porous membrane	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:45 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9067</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9067</guid>
      <author>Gorunovich, V. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
      <dc:creator>Gorunovich, V. V.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Some remarks for analytic functions related to Fibonacci polynomials and their applications</title>
      <pubDate>Tue, 24 Mar 2026 03:43:45 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9079</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9079</guid>
      <author>Düzenli, Timur</author>
      <dc:format>Article</dc:format>
      <dc:date>2026</dc:date>
      <dc:creator>Düzenli, Timur</dc:creator>
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      <title>Dissipative almost periodical actions of semigroups	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:44 +0000</pubDate>
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      <author>Vu Kuok Fong</author>
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      <dc:date>1987</dc:date>
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      <title>On behaviour of deviations’ group on sets of $(\psi,\beta)$-differentiable functions</title>
      <pubDate>Tue, 24 Mar 2026 03:43:42 +0000</pubDate>
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      <author>Stepanets, A. I.</author>
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      <dc:date>1987</dc:date>
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      <title>Eigen-functions decomposition of commutated operators’ families and representations of commutational relations	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:42 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9064</link>
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      <author>Berezansky, Yu. M.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
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      <title>On rough instability of autonomous systems’ equilibrium </title>
      <pubDate>Tue, 24 Mar 2026 03:43:41 +0000</pubDate>
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      <author>Sosnitsky, S. P.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
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      <title>Zeros and unities of the finite order entire functions </title>
      <pubDate>Tue, 24 Mar 2026 03:43:40 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9061</link>
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      <author>Sodin, M. L.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
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      <title>On complexity of the problem of finding solution for the Fredholm second type equations with smooth nuclei. I	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:39 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9060</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9060</guid>
      <author>Pereverzev, S. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>1987</dc:date>
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      <title>Certain applications of the Tauber-type theorems with a remainder for the Laplace transform in the probability theory	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:37 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9058</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9058</guid>
      <author>Melnik, V. I.</author>
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      <dc:date>1987</dc:date>
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    <item>
      <title>Dissipative actions and almost periodical representations of Abelian semigroups	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:36 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9057</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9057</guid>
      <author>Lyubich, Yu. I.</author>
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      <dc:date>1987</dc:date>
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      <title>Kolmogorov’s equation for the Cauchy problem’s solution of one class of linear evolutional equations	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:36 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9059</link>
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      <author>Mestechkina, T. M.</author>
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      <dc:date>1987</dc:date>
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      <title>On linear convex domains with smooth bounds	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:35 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9054</link>
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      <dc:date>1987</dc:date>
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      <title>Construction of periodic solutions of non-linear systems in critical cases	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:35 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9056</link>
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      <title>On periodical groups, where all decomposited $pd$-subgroups are normal </title>
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      <author>Liman, F. N.</author>
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      <dc:date>1987</dc:date>
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      <title>Construction of periodical solutions of the wave differential and integral-differential second order equations	</title>
      <pubDate>Tue, 24 Mar 2026 03:43:33 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9053</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-9053</guid>
      <author>Gromyak, M. I.</author>
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      <dc:date>1987</dc:date>
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      <title>On a special polynomial basis of analytical functions’ space	 	</title>
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      <author>Gorgula, V. I.</author>
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