Ukrainian Mathematical Journal publishes articles and brief communications on various areas of pure and applied mathematics and contains sections devoted to scientific information, bibliography, and reviews of current problems. It features contributions from researchers from the Ukrainian Mathematics Institute, the major scientific centers of the Ukraine and other countries.

Ukrainian Mathematical Journal is a translation of the peer-reviewed journal Ukrains’kyi Matematychnyi Zhurnal, a publication of the Institute of Mathematics of the National Academy of Sciences of Ukraine.

The Ukrainian volume-year is published in English beginning in July.

Editor-in-Chief 
Anatolii M. Samoilenko, Institute of Mathematics, National Academy of Sciences of Ukraine, Tereshchenkivska, 3, 01601, Kyiv, Ukraine, e-mail: umzh@imath.kiev.ua
Deputy Editor-in-Chief
Yuriy A. Drozd, Institute of Mathematics, National Academy of Sciences of Ukraine, Tereshchenkivska 3, 01601, Kyiv, Ukraine, e-mail: y.a.drozd@gmail.com or drozd@imath.kiev.ua
Managing Editor
O.V. Antoniouk, Institute of Mathematics, National Academy of Sciences of Ukraine, Tereshchenkivska, 3, 01601, Kyiv, Ukraine, e-mail: antoniouk.a@gmail.com
Secretary
P. V. Malyshev 
e-mail: umzh@imath.kiev.ua
Scientific Editorial Council 
Yu. M. Berezans’kyi, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

R. I. Grigorchuk, Mathematics Department Texas A&M University College Station, TX, USA
E. Ya. Khruslov, B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv, Ukraine

Yu. G. Kondratiev, Faculty of Mathematics the University of Bielefeld, Bielefeld, Germany
V. S. Korolyuk (Head), Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

I. O. Lukovs’kyi, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine


V. O. Marchenko, B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv, Ukraine

L. A. Pastur, B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv, Ukraine
Yu. S. Samoilenko, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

O. M. Sharkovs’kyi, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Editorial Board 
O. A. Boichuk, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

A. A. Dorogovtsev, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

V. M. Futornyi, Sao-Paulo University, Brazil
A. N. Kochubei, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

V. L. Makarov, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

S. I. Maksymenko, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

V. A. Mikhailets, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

V. P. Motornyi, Oles Honchar Dnipro National University, Dnipro, Ukraine
V. V. Nekrashevych, Mathematics Department Texas A&M University College Station, TX, USA
A. G. Nikitin, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

V. L. Ostrovskyi, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

I. O. Parasyuk, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine

M. O. Perestyuk, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
S. A. Plaksa, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

M. M. Prats’ovytyi, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

A. S. Romanyuk, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine

I. O. Shevchuk, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine

S. G. Solodkyi, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine


S. I. Trofimchuk, Institute of Mathematics and Physics University of Talca, Talca, Chile

O. M. Tymokha, Institute of Mathematics, National Academy of Sciences of Ukraine, Kyiv, Ukraine


M. M. Zarichnyi, Faculty of Mathematics and Natural Sciences, University of Rzeszow, Rzeszow, Poland, and Faculty of Mechanics and Mathematics, Ivan Franko National University of Lviv, Lviv, Ukraine
Manuscripts should be submitted to the Editorial Board:
E-mail: umzh@imath.kiev.ua
Manuscripts are accepted in the following languages: Ukrainian, Russian, and English.
For any further enquiries, authors and referees, please contact the Editor-in-Chief, Dr. Samoilenko, at: umzh@imath.kiev.ua