Approximation of classes of periodic functions in one and many variables from the Nikol’skii – Besov and Sobolev spaces by Romanyuk, A. S., Yanchenko, S. Ya., Романюк, А. С., Янченко, С. Я.

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Volodymyr Leonidovych Makarov (on his 80th birthday) by Lukovs’kyi , I. O., Timocha , O. M., Boichuk , O. A., Vasylyk, V., Луковський, І. О., Тимоха , О. М., Бойчук , O. A., Василик, В. Б., Vasylyk, Vitaliy

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Approximation of holomorphic functions by Cesàro means by Rovenska , O. G., Savchuk , V. V., Savchuk, M. V., Ровенська, О. Г., Савчук, В. В., Савчук , М. В., Савчук, Віктор Васильович

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Тhe concept of topological well-ordered space by Kandemir, Mustafa Burç, Uludağ, Dilan Başak, Kandemir, Mustafa Burç, Uludağ, Dilan Başak

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Quaternionic Davis–Wielandt shell in a right quaternionic Hilbert space by Jeribi, Aref, Mahfoudhi, Kamel, Jeribi, Aref, Mahfoudhi, Kamel

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Widths of classes of functions in the weight space $L_{2,\gamma}(\mathbb{R}), \gamma=\exp(-x^2)$ by Vakarchuk, S. B., Вакарчук, С. Б.

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On a property of the arithmetic means of monotonous sequences by Korenovskyi, A. O., Shanin, R. V., Кореновський, А. О., Шанiн, Р. В.

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Time-dependent source identification problem for a fractional Schrödinger equation with the Riemann–Liouville derivative by Ashurov, Ravshan, Shakarova, Marjona, Ashurov, Ravshan, Shakarova, Marjona

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A new simple proof of cayles’s formula and its relationship with the Kirkwood – Salzburg equations by Rebenko, O. L., Rebenko, Alexei, Ребенко, О. Л.

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On the behavior of one class of homeomorphisms at infinity by Salimov, R. R., Klishchuk, B. A., Салімов, Р. Р., Кліщук, Б. А.

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Gauss–Kuzmin problem for the difference Engel-series representation of real numbers by Moroz , M. P., Мороз, М. П.

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Superintegrable and scale invariant quantum systems with position dependent mass by Nikitin, A. G., Нікітін, А. Г.

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Almost everywhere convergence of $T$ means with respect to the Vilenkin system of integrable functions by Nadirashvili, N., Nadirashvili, N.

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Approximation of the classes $W^{r}_{\beta,\infty}$ by generalized Abel-Poisson integrals by Kal'chuk, I. V., Kharkevych, Yu. I., Кальчук, Инна, Харкевич, Юрий, Кальчук, I. В., Харкевич, Ю. I.

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Uncertainty principles for the $q$-Hankel–Stockwell transform by Brahim, Kamel, Ben Elmonser, Hédi, Brahim, Kamel, Ben Elmonser, Hédi

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Evaluation and attainment of weighted performance measures in descriptor control systems by Mazko, A. G., Мазко, Алексей, Мазко, О. Г.

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Estimates for deviation of integral operators in semilinear metric spaces and their applications by Babenko , V. F., Babenko , V. V., Kovalenko , O. V., Parfinovych , N. V., Бабенко, В. Ф., Бабенко, В. В., Коваленко, O. В., Парфінович, Н. В.

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Upper bound for the diameter of a tree in the quantum graph theory by Boyko, O. P., Martynyuk, O. M., Pivovarchik, V. M., Бойко, Ольга, Мартынюк, Ольга, Бойко, О. П., Мартинюк, О. М., Пивоварчик, В. М.

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A tangent inequality over primes by Dimitrov, S. I., Dimitrov, S. I.

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Monotone generalized $\alpha$-nonexpansive mappings on $C\kern-1ptAT_{p}(0)$ spaces by Hacıoǧlu, Emirhan, Gürsoy, Faik, Khan, Abdul Rahim, Hacıoǧlu, Emirhan, Gürsoy, Faik, Khan, Abdul Rahim

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