@Article{Tahara2015, author = "Tahara, Hidetoshi and Yamazawa, Hiroshi", title = "q-analogue of summability of formal solutions of some linear q-difference-differential equations", journal = "Opuscula Math.", year = "2015", volume = "35", number = "5", pages = "713--738", doi = "http://dx.doi.org/10.7494/OpMath.2015.35.5.713", url = "http://dx.doi.org/10.7494/OpMath.2015.35.5.713", abstract = "Let \(q\gt 1\). The paper considers a linear \(q\)-difference-differential equation: it is a \(q\)-difference equation in the time variable \(t\), and a partial differential equation in the space variable \(z\). Under suitable conditions and by using \(q\)-Borel and \(q\)-Laplace transforms (introduced by J.-P. Ramis and C. Zhang), the authors show that if it has a formal power series solution \(\hat{X}(t,z)\) one can construct an actual holomorphic solution which admits \(\hat{X}(t,z)\) as a \(q\)-Gevrey asymptotic expansion of order \(1\).", keywords = "\(q\)-difference-differential equations, summability, formal power series solutions, \(q\)-Gevrey asymptotic expansions, \(q\)-Laplace transform", issn = "1232-9274" }