Bulletin of Taras Shevchenko National University of Kyiv. Series: Physics and Mathematics https://bphm.knu.ua/index.php/bphm <p>The journal contains results of new research in various fields of mathematics, computer science, mechanics, physics and radiophysics. For researchers, teachers, postgraduates, engineers and students. It is published on the recommendations of the Academic Councils of Faculty of Physics, Faculty of Radiophysics, Electronics and Computer Systems, Faculty of Mechanics and Mathematics and the Faculty of Computer Science and Cybernetics.</p> Taras Shevchenko National University of Kyiv en-US Bulletin of Taras Shevchenko National University of Kyiv. Series: Physics and Mathematics 1812-5409 <p>Authors who publish with this journal agree to the following terms:</p> <ol> <li class="show">Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a&nbsp;<a href="https://creativecommons.org/licenses/by/3.0/" target="_new">Creative Commons Attribution License</a>&nbsp;that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.</li> <li class="show">Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.</li> <li class="show">Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See&nbsp;<a href="http://opcit.eprints.org/oacitation-biblio.html" target="_new">The Effect of Open Access</a>).</li> </ol>