| Type | Author(s) | Title | Other Titles | Citation | Citation(alt) | Issue Date |
| bulletin (article) | Izumiya, S.; Kossioris, G.; Makrakis, G. | Multivalued solutions to the eikonal equation in stratified media | - | Hokkaido University Preprint Series in Mathematics | - | 1-Jul-1999 |
| bulletin (article) | Izumiya, S.; Takeuchi, N. | New special curves and developable surfaces | - | Hokkaido University Preprint Series in Mathematics | - | Jul-2002 |
| bulletin (article) | Izumiya, S.; Li, B. | Overdetermined systems of first order partial differential equations with singular solution | - | Hokkaido University Preprint Series in Mathematics | - | Jun-1993 |
| bulletin (article) | Izumiya, S. | Perestroikas of optical wave fronts and graphlike Legendrian unfoldings | - | Hokkaido University Preprint Series in Mathematics | - | Jun-1992 |
| bulletin (article) | Izumiya, S.; Kossioris, G. T. | Realization theorems of geometric singularities for Hamilton-Jacobi equations | - | Hokkaido University Preprint Series in Mathematics | - | 1-Nov-1993 |
| bulletin (article) | Izumiya, S.; Katsumi, H.; Yamasaki, T. | The rectifying developable and the spherical Darboux image of a space curve | - | Hokkaido University Preprint Series in Mathematics | - | 1-Aug-1998 |
| bulletin (article) | Izumiya, S.; Kossioris, G. T. | Semi-local classification of geometric singularities for Hamilton-Jacobi equations | - | Hokkaido University Preprint Series in Mathematics | - | Mar-1993 |
| bulletin (article) | Izumiya, S.; Kossioris, G. T. | Singularities for viscosity solutions of Hamilton-Jacobi equations | - | Hokkaido University Preprint Series in Mathematics | - | 1-Jun-1994 |
| bulletin (article) | Izumiya, S.; Kossowski, M.; Pei, D.; Romero-Fuster, M. C | Singularities of C∞-lightlike hypersurfaces in Minkowski 4-space | - | Hokkaido University Preprint Series in Mathematics | - | Dec-2002 |
| bulletin (article) | Izumiya, S.; Pei, D-H; Sano, T. | Singularities of hyperbolic Gauss maps | - | Hokkaido University Preprint Series in Mathematics | - | 1-Jan-2001 |
| bulletin (article) | Izumiya, S.; Saji, K.; Takeuchi, N. | Singularities of line congruences | - | Hokkaido University Preprint Series in Mathematics | - | Jul-2002 |
| bulletin (article) | Izumiya, S.; Takeuchi, N. | Singularities of ruled surfaces in R 3 | - | Hokkaido University Preprint Series in Mathematics | - | 1-May-1999 |
| bulletin (article) | Izumiya, S.; Sun, W-Z. | Singularities of solution surfaces for quasilinear 1st order partial differential equations | - | Hokkaido University Preprint Series in Mathematics | - | 1-Jul-1995 |
| bulletin (article) | Izumiya, S. | Singularities of solutions for first order partial differential equations | - | Hokkaido University Preprint Series in Mathematics | - | 1-Nov-1996 |
| bulletin (article) | Izumiya, S.; Takeuchi, N. | Special curves and raled surfaces | - | Hokkaido University Preprint Series in Mathematics | - | 1-Jan-2001 |
| bulletin (article) | Izumiya, S.; Janeczko, S. | A symplectic framework for multiplane gravitational lensing | - | Hokkaido University Preprint Series in Mathematics | - | Dec-2002 |
| bulletin (article) | Izumiya, S.; Takiyama, A. | A time-like surface in Minkowski 3-space which contains light-like lines | - | Hokkaido University Preprint Series in Mathematics | - | 1-Dec-1994 |
| bulletin (article) | Izumiya, S.; Takiyama, A. | A time-like surface in Minkowski 3-space which contains pseudocodes | - | Hokkaido University Preprint Series in Mathematics | - | 1-Jun-1995 |
| bulletin (article) | Izumiya, S.; Maruyama, K. | Transversal topology and singularities of Haefliger foliations | - | Hokkaido University Preprint Series in Mathematics | - | 1-Jan-2001 |
| bulletin (article) | Izumiya, S.; Pei, S.; Fuster, M. C. Romero | Umbilicity of spacelike submanifolds of Minkowski space | - | Hokkaido University Preprint Series in Mathematics | - | Jul-2002 |
