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    <item>
      <title>On the geometric results of A. V. Pogorelov</title>
      <pubDate>Tue, 24 Mar 2026 02:41:21 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3374</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3374</guid>
      <author>Aminov, Yu. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Aminov, Yu. A.</dc:creator>
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    <item>
      <title>A note on mixed summation-integral-type operators</title>
      <pubDate>Tue, 24 Mar 2026 02:41:21 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3376</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3376</guid>
      <author>Gupta, M. K.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Gupta, M. K.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Isomonodromic deformations and the differential Galois theory</title>
      <pubDate>Tue, 24 Mar 2026 02:41:20 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3375</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3375</guid>
      <author>Grigorenko, N. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Grigorenko, N. V.</dc:creator>
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    <item>
      <title>Bounded approximate synthesis of the optimal control for the wave equation</title>
      <pubDate>Tue, 24 Mar 2026 02:41:19 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3372</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3372</guid>
      <author>Sukretna, A. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Sukretna, A. V.</dc:creator>
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    <item>
      <title>Asymptotics of the values of approximations in the mean for classes of differentiable functions by using biharmonic Poisson integrals</title>
      <pubDate>Tue, 24 Mar 2026 02:41:18 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3373</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3373</guid>
      <author>Kalchuk, I. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Kalchuk, I. V.</dc:creator>
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    <item>
      <title>Multiple Fourier sums and ψ-strong means of their deviations on the classes of ψ-differentiable functions of many variables</title>
      <pubDate>Tue, 24 Mar 2026 02:41:17 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3371</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3371</guid>
      <author>Lasuriya, R. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Lasuriya, R. A.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>On the boundary behavior of imbeddings of metric spaces into a Euclidean space</title>
      <pubDate>Tue, 24 Mar 2026 02:41:16 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3370</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3370</guid>
      <author>Salimov, R. R.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Salimov, R. R.</dc:creator>
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    <item>
      <title>Best approximation by holomorphic functions. Application to the best polynomial approximation of classes of holomorphic functions</title>
      <pubDate>Tue, 24 Mar 2026 02:41:15 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3369</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3369</guid>
      <author>Savchuk, V. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Savchuk, V. V.</dc:creator>
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    <item>
      <title>Constancy of upper-continuous two-valued mappings into the Sorgenfrey line</title>
      <pubDate>Tue, 24 Mar 2026 02:41:14 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3367</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3367</guid>
      <author>Maslyuchenko, V. K.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Maslyuchenko, V. K.</dc:creator>
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    <item>
      <title>Weak convergence of integral functionals of random walks weakly convergent to fractional Brownian motion</title>
      <pubDate>Tue, 24 Mar 2026 02:41:14 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3368</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3368</guid>
      <author>Mishura, Yu. S.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Mishura, Yu. S.</dc:creator>
      <slash:comments>0</slash:comments>
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      <title>Consistent estimator in multivariate errors-in-variables model in the case of unknown error covariance structure</title>
      <pubDate>Tue, 24 Mar 2026 02:41:11 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3366</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3366</guid>
      <author>Kukush, A. G.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Kukush, A. G.</dc:creator>
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    <item>
      <title>c * -Supplemented subgroups and p -nilpotency of finite groups</title>
      <pubDate>Tue, 24 Mar 2026 02:41:10 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3364</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3364</guid>
      <author>Wang, Youyu</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Wang, Youyu</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>On the invertibility of the operator d/dt  + A  in certain functional spaces</title>
      <pubDate>Tue, 24 Mar 2026 02:41:10 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3365</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3365</guid>
      <author>Gorodnii, M. F.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Gorodnii, M. F.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>I-radicals and right perfect rings</title>
      <pubDate>Tue, 24 Mar 2026 02:41:08 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3363</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3363</guid>
      <author>Rump, W.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Rump, W.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Linearly ordered compact sets and co-Namioka spaces</title>
      <pubDate>Tue, 24 Mar 2026 02:41:07 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3362</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3362</guid>
      <author>Mykhailyuk, V. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Mykhailyuk, V. V.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Aleksandr Mikhailovich Lyapunov (the 150th anniversary of his birth)</title>
      <pubDate>Tue, 24 Mar 2026 02:41:06 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3361</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3361</guid>
      <author>Martynyuk, A. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Martynyuk, A. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Approximation of (ψ, β)-differentiable functions by Weierstrass integrals</title>
      <pubDate>Tue, 24 Mar 2026 02:41:05 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3359</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3359</guid>
      <author>Kalchuk, I. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Kalchuk, I. V.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On some properties of convex functions</title>
      <pubDate>Tue, 24 Mar 2026 02:41:04 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3357</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3357</guid>
      <author>Stepanets, O. I.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Stepanets, O. I.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Controllability problems for the string equation</title>
      <pubDate>Tue, 24 Mar 2026 02:41:04 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3358</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3358</guid>
      <author>Fardigola, L. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Fardigola, L. V.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On a complete description of the class of functions without zeros analytic in a disk and having given orders</title>
      <pubDate>Tue, 24 Mar 2026 02:41:04 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3360</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3360</guid>
      <author>Chyzhykov., I. E.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Chyzhykov., I. E.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Distribution of the lower boundary functional of the step process of semi-Markov random walk with delaying screen at zero</title>
      <pubDate>Tue, 24 Mar 2026 02:41:01 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3356</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3356</guid>
      <author>Nasirova, T. I.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Nasirova, T. I.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Direct and inverse theorems on approximation of functions defined on a sphere in the space S (p,q)(σ m)</title>
      <pubDate>Tue, 24 Mar 2026 02:41:00 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3355</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3355</guid>
      <author>Lasuriya, R. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Lasuriya, R. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Multiplicative relations with conjugate algebraic numbers</title>
      <pubDate>Tue, 24 Mar 2026 02:40:59 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3354</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3354</guid>
      <author>Dubickas, A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Dubickas, A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On one boundary-value problem for a strongly degenerate second-order elliptic equation in an angular domain</title>
      <pubDate>Tue, 24 Mar 2026 02:40:57 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3352</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3352</guid>
      <author>Bazalii, B. V.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Bazalii, B. V.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Limit theorems for systems of the type M θ/G/1/b with resume level of input stream</title>
      <pubDate>Tue, 24 Mar 2026 02:40:57 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3353</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3353</guid>
      <author>Bratiychuk, A. M.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Bratiychuk, A. M.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Commutants of some classes of operators associated with shift operators</title>
      <pubDate>Tue, 24 Mar 2026 02:40:56 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3351</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3351</guid>
      <author>Linchuk, Yu. S.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Linchuk, Yu. S.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Direct and inverse theorems of approximate methods for the solution of an abstract Cauchy problem</title>
      <pubDate>Tue, 24 Mar 2026 02:40:54 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3349</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3349</guid>
      <author>Torba, S. M.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Torba, S. M.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>On the growth of deformations of algebras associated with Coxeter graphs</title>
      <pubDate>Tue, 24 Mar 2026 02:40:53 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3348</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3348</guid>
      <author>Popova, N. D.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Popova, N. D.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>On a criterion for the uniform boundedness of a C0-semigroup of operators in a Hilbert space</title>
      <pubDate>Tue, 24 Mar 2026 02:40:53 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3350</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3350</guid>
      <author>Wróbel, I.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Wróbel, I.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Extension of the Stieltjes moment sequence to the left and related problems of the spectral theory of inhomogeneous string</title>
      <pubDate>Tue, 24 Mar 2026 02:40:51 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3347</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3347</guid>
      <author>Nudel&amp;#039;man, A. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Nudel&amp;#039;man, A. A.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Elliptic pseudodifferential operators in the improved scale of spaces on a closed manifold</title>
      <pubDate>Tue, 24 Mar 2026 02:40:50 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3346</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3346</guid>
      <author>Murach, A. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Murach, A. A.</dc:creator>
      <slash:comments>0</slash:comments>
    </item>
    <item>
      <title>Singularly perturbed periodic and semiperiodic differential operators</title>
      <pubDate>Tue, 24 Mar 2026 02:40:48 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3345</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3345</guid>
      <author>Mikhailets, V. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Mikhailets, V. A.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Rational matrix functions associated with the Nevanlinna-Pick problem in the class S [a, b] and orthogonal on a compact interval</title>
      <pubDate>Tue, 24 Mar 2026 02:40:47 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3343</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3343</guid>
      <author>Dyukarev, Yu. M.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Dyukarev, Yu. M.</dc:creator>
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    <item>
      <title>Reconstruction of the spectral type of limiting distributions in dynamical conflict systems</title>
      <pubDate>Tue, 24 Mar 2026 02:40:47 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3344</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3344</guid>
      <author>Koshmanenko, V. D.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Koshmanenko, V. D.</dc:creator>
      <slash:comments>0</slash:comments>
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    <item>
      <title>Singularly perturbed self-adjoint operators in scales of Hilbert spaces</title>
      <pubDate>Tue, 24 Mar 2026 02:40:45 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3341</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3341</guid>
      <author>Kuzhel&amp;#039;, S. A.</author>
      <dc:format>Article</dc:format>
      <dc:date>2007</dc:date>
      <dc:creator>Kuzhel&amp;#039;, S. A.</dc:creator>
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    <item>
      <title>Spectral theory and Wiener-Itô decomposition for the image of a Jacobi field</title>
      <pubDate>Tue, 24 Mar 2026 02:40:45 +0000</pubDate>
      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3342</link>
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      <title>On spectra of a certain class of quadratic operator pencils with one-dimensional linear part</title>
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      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3339</link>
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      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3340</link>
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      <title>On the nature of the de Branges Hamiltonian</title>
      <pubDate>Tue, 24 Mar 2026 02:40:40 +0000</pubDate>
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      <title>Improved scales of spaces and elliptic boundary-value problems. III</title>
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      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3338</link>
      <guid>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3338</guid>
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      <title>Passive impedance systems with losses of scattering channels</title>
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      <title>Phragmén-Lindelöf theorem for solutions of elliptic differential equations in a banach space</title>
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      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3336</link>
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      <title>Mark Grigorievich Krein (to the centenary of his birth)</title>
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      <pubDate>Tue, 24 Mar 2026 02:40:36 +0000</pubDate>
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      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3332</link>
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      <link>https://harvester.nas.gov.ua/Record/umjimathkievua-article-3330</link>
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      <title>Middle-sectioned simplices in a four-dimensional affine space</title>
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      <title>Evgen Yakovich Khruslov (on his 75 th birthday)</title>
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      <title>On equivalent bases in Banach spaces</title>
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