Published or Accepted Papers
M. Sawahara, Cylindrical ample divisors on Du Val del Pezzo surfaces, Forum Math. 37 (2025), 1597--1619.
DOI: 10.1515/forum-2024-0279 (arXiv:2304.12755)
M. Sawahara, Minimal compactifications of the affine plane with only star-shaped singularities, Taiwanese J. Math. 29 (2025), 425--447.
DOI: 10.11650/tjm/250202 (arXiv:2408.07987)
M. Sawahara, Cylinders in canonical del Pezzo fibrations, Ann. Inst. Fourier 74 (2024), 1--69.
DOI: 10.5802/aif.3573 (arXiv:2012.10062)
M. Sawahara, Minimal compactifications of the affine plane with nef canonical divisors, Comm. Algebra 52 (2024), 2185--2204.
DOI: 10.1080/00927872.2023.2285919 (arXiv:2304.12756)
M. Sawahara, Notes on cylinders in smooth projective surfaces, Geom. Dedicata 217 (2023), No. 6, 14pp.
DOI: 10.1007/s10711-022-00741-3 (arXiv:2204.08864)
M. Sawahara, Cylinders in weak del Pezzo fibrations, Transform. Groups 28 (2023), 413--437.
DOI: 10.1007/s00031-022-09730-y (arXiv:1912.09016)
M. Sawahara, Compactifications of the affine plane over nonclosed fields, Pacific J. Math. 321 (2022), 375--413.
DOI: 10.2140/pjm.2022.321.375 (arXiv:2107.08730)
Preprints
I.-K. Kim, D.-W. Lee and M. Sawahara, Cylindricity of weighted singular del Pezzo surfaces over fields of characteristic zero, arXiv:2512.20134v2 (2025), 25pp.
J. Kim, D.-W. Lee and M. Sawahara, Cylinders in Du Val del Pezzo surfaces of degree one with Picard rank two, arXiv:2512.01285 (2025), 25pp.
M. Sawahara, Polarized cylinders in Du Val del Pezzo surfaces of degree two, arXiv:2412.09848v2 (2024), 30pp.
Doctoral thesis
Cylinders in normal surfaces over algebraically non-closed fields with an application to cylindricity of del Pezzo fibrations, Saitama University, 2022.
DOI: 10.24561/00019786
Master's thesis
Cylinders in weak del Pezzo fibrations, Saitama University, 2019. (in Japanese)
Last update: Mar. 31, 2026