Open Access Policy

Modern Mathematical Methods (MMM) is published Open Access in accordance with the Berlin Declaration. By "Open Access" to this literature, we mean its free availability on the public internet, permitting any users to read, download, copy, distribute, print, search, or link to the full texts of these articles, crawl them for indexing, pass them as data to software, or use them for any other lawful purpose, without financial, legal, or technical barriers other than those inseparable from gaining access to the internet itself. 

The author(s) retains unrestricted copyrights and publishing rights.

“Open Access” is a catch-all term covering both Gratis and Libre Open Access. More than 20 years ago, Open Access was understood to mean content that was available for free without a price attached. This kind of Open Access is now referred to as Gratis Open Access. Over time, as the concept of open access became more widely accepted, there was a need to be clearer about what users were allowed to do with the content. This meant that the users’ rights needed to be clearly stated. This kind of Open Access has no price barriers and removes at least some of the permission barriers. It is referred to as Libre Open Access. Different levels of permissions for reuse exist, like commercial use, creating translations, etc (as indicated by the six different Creative Commons licenses, for example), different variants of Libre Open Access also exist (https://blog.doaj.org/2020/11/17/what-does-doaj-define-as-open-access/).
The Publisher believes that for Open Access to work effectively, user rights, through licensing, and copyright ownership need to be clear.