2012/04 - 2015/05 Lecturer, Mathematics, Graduate School of Science and Engineering, Saga University
2015/06 - * Associate Professor, Mathematics, Graduate School of Science and Engineering, Saga University
2022/03 - * Professor, Faculty of Science and Engineering, Saga University
Field of Specialization
Algebra
Membership in Academic Societies
Mathematical Society of Japan
Awards
日本数学会代数学賞 (2020/03)
Research Topics and Results
Stable rationality of index one Fano hypersurfaces containing a linear space 2022/09
Smooth weighted hypersurfaces that are not stably rational 2021/06
Alpha invariants of birationally bi-rigid Fano 3-folds I 2021/03
Stable rationality of del Pezzo fibrations of low degree over projective spaces 2020/11
Birational Mori fiber structures of Q-Fano 3-fold weighted complete intersections, III 2020/09
On birational rigidity of singular del Pezzo fibrations of degree 1 2020/08
Birationally superrigid Fano3-folds of codimension 4 2020/03
Stable rationality of cyclic covers of projective spaces 2019/08
Stable rationality of orbifold Fano 3-fold hypersurfaces 2019/01
Stable rationality of higher dimensional conic bundles 2018/06
Birational Mori fiber structures of Q-Fano 3-fold weighted complete intersections, II 2018/05
Alpha invariants of birationally rigid Fano three-folds 2018/05
Birationally rigid Pfaffian Fano 3-folds 2018/03
Q-Fano threefolds with three birational Mori fiber structures 2017/12
Nonrational del Pezzo fibrations admitting an action of the Klein simple group 2016/03
Birational Mori fiber structures of Q-Fano threefold weighted complete intersections 2014/12
Birational superrigidity and slope stability of Fano manifolds 2013/12
On the birational unboundedness of higher dimensional Q-Fano varieties 2009/09
Nonrational weighted hypersurfaces 2009/06
Original Articles
Stable rationality of index one Fano hypersurfaces containing a linear space; 2022/09 ANNOUNCEMENT INFO.; Eur. J. Math., 8, 3, 1158-1171 AUTHOR; Takuzo Okada
Smooth weighted hypersurfaces that are not stably rational; 2021/06 ANNOUNCEMENT INFO.; Ann. Inst. Fourier (Grenoble), 71, 1, 203-237 AUTHOR; Takuzo Okada
Alpha invariants of birationally bi-rigid Fano 3-folds I; 2021/03 ANNOUNCEMENT INFO.; Eur. J. Math., 7, 1, 272-308 AUTHOR; In-Kyun kim, Takuzo Okada, Joonyeong Won
Stable rationality of del Pezzo fibrations of low degree over projective spaces; 2020/11 ANNOUNCEMENT INFO.; Int. Math. Res. Not., 2020, 23, 9075-9119 AUTHOR; Igor Krylov, Takuzo Okada
Birational Mori fiber structures of Q-Fano 3-fold weighted complete intersections, III; 2020/09 ANNOUNCEMENT INFO.; Kyoto J. Math., 60, 3, 825-893 AUTHOR; Takuzo Okada
On birational rigidity of singular del Pezzo fibrations of degree 1; 2020/08 ANNOUNCEMENT INFO.; J. Lond. Math. Soc. (2), 102, 1, 1-21 AUTHOR; Takuzo Okada
Birationally superrigid Fano3-folds of codimension 4; 2020/03 ANNOUNCEMENT INFO.; Algebra Number Theory, 14, 1, 191-212 AUTHOR; Takuzo Okada
Stable rationality of cyclic covers of projective spaces; 2019/08 ANNOUNCEMENT INFO.; Proc. Edinb. Math. Soc. (2), 62, 3, 667-682 AUTHOR; Takuzo Okada
Stable rationality of orbifold Fano 3-fold hypersurfaces; 2019/01 ANNOUNCEMENT INFO.; J. Algebraic Geom., 28, 99-138 AUTHOR; Takuzo Okada
Q-Fano threefolds with three birational Mori fiber structures; 2017/12 ANNOUNCEMENT INFO.; Advanced Studies in Pure Mathematics, Volume 75, 393-424 AUTHOR; Takuzo Okada
Nonrational del Pezzo fibrations admitting an action of the Klein simple group; 2016/03 ANNOUNCEMENT INFO.; European Journal of Mathematics, 2, 1, 319-332 AUTHOR; Takuzo Okada
Birational Mori fiber structures of Q-Fano threefold weighted complete intersections; 2014/12 ANNOUNCEMENT INFO.; Proc. London Math. Soc., 109, 6, 1549-1600 AUTHOR; Takuzo Okada
On birationally solid Fano 3-fold hypersurfaces; 2022/10 ANNOUNCEMENT INFO.; Algebraic Geometry Seminar at IBS-CGP,Pohang, Korea AUTHOR; Takuzo Okada
Birational geometry of sextic double solids with cA points; 2021/10 ANNOUNCEMENT INFO.; Algebraic Geometry Seminar, Online (Zoom), IBS-CGP, Pohang, Korea AUTHOR; Takuzo Okada
Birational geometry of sextic double solids with cA points; 2021/09 ANNOUNCEMENT INFO.; Seminar of Algebraic Geometry in East Asia, Online (Zoom) AUTHOR; Takuzo Okada
On K-stability of birationally superrigid Fano 3-folds; 2020/07 ANNOUNCEMENT INFO.; AUTHOR; Takuzo Okada
Invited Lecture, Special Lecture
Birational rigidity of certain singular Fano 3-folds; 2023/03 ANNOUNCEMENT INFO.; The 21st Affine Algebraic Geometry Meeting, Saitama University AUTHOR; Takuzo Okada
On birationally solid Fano 3-folds; 2022/11 ANNOUNCEMENT INFO.; Rationality, Moduli Spaces, and Related Topics, Nagoya University AUTHOR; Takuzo Okada
Birational geometry of Fano 3-fold weighted complete intersections; 2021/03 ANNOUNCEMENT INFO.; The 19th Affine Algebraic Geometry Meeting, Saitama University (online), Saitama AUTHOR; Takuzo Okada
Birational geometry of Fano 3-fold WCIs; 2021/02 ANNOUNCEMENT INFO.; Fano varieties and birational geometry, University of Nottingham (online), UK AUTHOR; Takuzo Okada
On the degree of irrationality of quartic 3-folds; 2019/11 ANNOUNCEMENT INFO.; Birational Geometry, Kahler-Einstein metrics and Degenerations, IBS-CGP, POSTECH, Pohang, Korea AUTHOR; Takuzo Okada
Birationally superrigid Fano threefolds of codimension 4; 2019/10 ANNOUNCEMENT INFO.; Kinosaki Algebraic Geometry Symposium 2019, Kinosaki International Arts Center AUTHOR; Takuzo Okada
Birationally superrigid Fano 3-folds of codimension 4; 2019/06 ANNOUNCEMENT INFO.; Algebraic Geometry International Conference, KIAS, Seoul, Korea AUTHOR; Takuzo Okada
Birationally superrigid Fano 3-fold of codimension 4; 2019/06 ANNOUNCEMENT INFO.; Birational Geometry and Fano Varieties (dedicated to V. Iskovskikh), Steklov Math. Inst., Moscow, Russia AUTHOR; Takuzo Okada
On K-stability of birationally superrigid Fano 3-folds; 2019/04 ANNOUNCEMENT INFO.; Birational Geometry, Kahler-Einstein metrics and Degenerations, HSE, Moscow, Russia AUTHOR; Takuzo Okada
K-stability and birational rigidity of Fano 3-folds, part 1, 2, 3, 4; 2018/12 ANNOUNCEMENT INFO.; Algebraic Geometry Seminar, KIAS, Seoul, Korea AUTHOR; Takuzo Okada
Birational rigidity of del Pezzo fibrations; 2018/11 ANNOUNCEMENT INFO.; Explicit Birational and Affine Geometry in Saitama, Saitama University AUTHOR; Takuzo Okada
Failure of stable rationality of various algebraic varieties; 2018/10 ANNOUNCEMENT INFO.; Algebraic Geometry in East Asia, VAST, Hanoi, Vietnam AUTHOR; Takuzo Okada
On birational rigidity of singular del Pezzo fibrations of degree 1; 2018/06 ANNOUNCEMENT INFO.; Positivity in Algebraic Geometry, Yonsei University, Seoul, Korea AUTHOR; Takuzo Okada
Failure of stable rationality of various algebraic varieties via reduction modulo p; 2018/05 ANNOUNCEMENT INFO.; Birational Geometry and Arithmetic, ICERM, Providence, RI (USA) AUTHOR; Takuzo Okada
On birational rigidity of singular del Pezzo fibrations of degree 1; 2018/03 ANNOUNCEMENT INFO.; The 16th Affine Algebraic Geometry Meeting, Kwansai Gakuin University, Osaka AUTHOR; Takuzo Okada
On stable rationality problem of Fano varieties; 2017/09 ANNOUNCEMENT INFO.; Stability, Boundedness and Fano varieties, BICMR, China AUTHOR; Takuzo Okada
Smooth weighted hypersurfaces that are not stably rational; 2017/06 ANNOUNCEMENT INFO.; Birkar's boundedness and Cremona groups, University of Edinburgh, UK AUTHOR; Takuzo Okada
On stable rationality of del Pezzo fibrations; 2017/03 ANNOUNCEMENT INFO.; The 15th Affine Algebraic Geometry Meeting, Kwansei Gakuin University, Osaka Umeda Campus AUTHOR; Takuzo Okada
Stable rationality of conic bundles over projective spaces; 2017/03 ANNOUNCEMENT INFO.; AUTHOR;
Stable rationality of orbifold Fano 3-fold hypersurfaces; 2016/10 ANNOUNCEMENT INFO.; Kinosaki Algebraic Symposium 2016, Kinosaki International Arts Center AUTHOR; Takuzo Okada
Stable rationality of orbifold Fano 3-fold hypersurfaces; 2016/07 ANNOUNCEMENT INFO.; Rationality and selfmaps, RIMS, Kyoto AUTHOR; Takuzo Okada
Stable rationality of cyclic covers and some orbifold Fano 3-folds; 2016/06 ANNOUNCEMENT INFO.; Workshop on birational geometry and reduction to positive characteristic, University of Edinburgh, UK AUTHOR; Takuzo Okada
On log canonical thresholds of birationally rigid Fano threefolds; 2016/03 ANNOUNCEMENT INFO.; The 14th Affine Algebraic Geometry Meeting, Kwansei Gakuin University, Osaka Umeda Campus AUTHOR;
Classification of birationally bi-rigid Fano threefolds of codimension 2; 2016/02 ANNOUNCEMENT INFO.; Higher dimensional algebraic geometry and around, Kobe-Kyoto, Kyoto University AUTHOR; Takuzo Okada
Birationally bi-rigid Fano threefolds of codimension 2; 2016/02 ANNOUNCEMENT INFO.; Heilbronn Focused Research Workshop on Birational Geometry, University of Warwick, UK AUTHOR; Takuzo Okada
Non-rationality of del Pezzo fibrations by reduction modulo p; 2016/02 ANNOUNCEMENT INFO.; Linfoot Seminar, University of Bristol AUTHOR; Takuzo Okada
Birational geometry of Fano 3-folds of codimension 2 and 3; 2015/09 ANNOUNCEMENT INFO.; Algebraic Geometry Seminar, IBS Center for Geometry and Physics, Pohang, Korea AUTHOR; Takuzo Okada
Nonrational del Pezzo fibrations admitting an action of the Klein simple group; 2015/06 ANNOUNCEMENT INFO.; Workshop on singular del Pezzo surfaces, University of Edinburgh, UK AUTHOR; Takuzo Okada
Birational geometry of Mori fibrations; 2015/04 ANNOUNCEMENT INFO.; 2015 KAIST CMC Advanced School on Algebraic Geometry, KAIST, Daejeon, Korea AUTHOR; Takuzo Okada
Introduction to rationality problem of quartic (and cubic) 3-folds; 2013/08 ANNOUNCEMENT INFO.; Workshop in Algebraic Geometry in Sapporo (Hokkaido University) AUTHOR; Takuzo Okada