1 Erratum to: Mathematical Sciences (2015) 2:20 DOI 10.1186/s40687-015-0031-z

It has come to our attention that there is an error in the title of this article [1]. The title “New methods for \((\Gamma , \upvarphi )\)-modules” is incorrect and should read “New methods for \((\upvarphi , \Gamma )\)-modules”. The publisher apologises for any inconvenience caused by this.