Keiichi Watanabe. On a notion of complex Möbius gyrovector spaces. Nihonkai Math. J. 2021. 32. 2. 111-131
Keiichi Watanabe. On Lipschitz continuity with respect to the Poincaré metric of linear contractions between Möbius gyrovector spaces. Journal of Inequalities and Applications. 2021. 2021. 1
Keiichi Watanabe. On Quasi Gyrolinear Maps between Möbius Gyrovector Spaces Induced from Finite Matrices. Symmetry. 2021. 13. 1. 76-76