A note on the non-vanishing of Poincaré series for the Fricke group Γ0<sup>+</sup> (p).Published in:Proceedings of the Japan Academy, Series A: Mathematical Sciences, 2019, v. 95, n. 3, p. 24, doi. 10.3792/pjaa.95.24By:SoYoung CHOI;Bo-Hae IMPublication type:Article
Examples of isometric immersions of R² into R<sup>4</sup> with vanishing normal curvature.Published in:Proceedings of the Japan Academy, Series A: Mathematical Sciences, 2019, v. 95, n. 3, p. 21, doi. 10.3792/pjaa.95.21By:MORI, HiroshiPublication type:Article