@Article{Ogawara2017, author = "Ogawara, Hiroshi", title = "On criteria for algebraic independence of collections of functions satisfying algebraic difference relations", journal = "Opuscula Math.", year = "2017", volume = "37", number = "3", pages = "457--472", doi = "http://dx.doi.org/10.7494/OpMath.2017.37.3.457", url = "http://dx.doi.org/10.7494/OpMath.2017.37.3.457", abstract = "This paper gives conditions for algebraic independence of a collection of functions satisfying a certain kind of algebraic difference relations. As applications, we show algebraic independence of two collections of special functions: (1) Vignéras' multiple gamma functions and derivatives of the gamma function, (2) the logarithmic function, \(q\)-exponential functions and \(q\)-polylogarithm functions. In a similar way, we give a generalization of Ostrowski's theorem.", keywords = "difference algebra, systems of algebraic difference equations, algebraic independence, Vignéras' multiple gamma functions, \(q\)-polylogarithm functions", issn = "1232-9274" }