I am writing an article in which I need to reproduce a section of my previous paper. This section includes standard math formulations and very little text. Although I am including this section with some minor changes but overall structure of section would be same. I will include proper citation but still I am worried if this could be a case of self plagiarism ?
The Journal in which I want to submit my work have following clause on
Authors wishing to include figures, tables, or text passages that have already been published elsewhere are required to obtain permission from the copyright owner(s) for both the print and online format and to include evidence that such permission has been granted when submitting their papers. Any material received without such evidence will be assumed to originate from the authors.
The journal in which my article has been published says like this on
Subscribers may reproduce tables of contents or prepare lists of articles including abstracts for internal circulation within their institutions. Permission of the Publisher is required for resale or distribution outside the institution and for all other derivative works, including compilations and translations. If excerpts from other copyrighted works are included, the author(s) must obtain written permission from the copyright owners and credit the source(s) in the article. Elsevier has preprinted forms for use by authors in these cases.
As an author you (or your employer or institution) have certain rights to reuse your work. More information.. One more thing that this journal says on permission:
As a general rule, written permission must be obtained from the rightsholder in order to re-use any copyrighted material. Typically the rightsholder of published material is the publisher unless it is explicitly indicated otherwise. Copyrighted material can include figures, illustrations, charts, tables, photographs, and text excerpts.
Re-use of any borrowed material must be properly acknowledged, even if it is determined that written permission is not necessary.
PS. My research field is Mathematics.
The legal issue regarding copyright is what concerns me. You need to investigate that. I don't think self-plagiarism is possible. Could there be partial-plagiarism if your past work involved a partner?