Makoto Enokizono is an Assistant Professor at the Graduate School of Mathematical Sciences, University of Tokyo, specializing in Algebraic Geometry. His research centers on algebraic surfaces, moduli spaces, and their degenerations, with a focus on numerical invariants and intersection theory. Current research themes include algebraic curves and surfaces, moduli space structures, and positive-characteristic geometry. Key trends in his publications address Zariski decompositions, vanishing theorems, cohomology of Hessenberg varieties, and Durfee-type inequalities for singularities. Scientific awards: The Mathematical Society of Japan
Kazushi Ueda is an Associate Professor at the Graduate School of Mathematical Sciences, The University of Tokyo, where he has been since April 2015. His research spans algebraic geometry, symplectic geometry, and mathematical physics, with a focus on homological mirror symmetry and its applications to moduli spaces, Calabi-Yau manifolds, and singularities. He previously held academic positions at Osaka University from 2006 to 2015, including roles as Assistant Professor and Associate Professor. Ueda has also had visiting appointments at institutions such as the University of Oxford, Max Planck Institute for Mathematics, and Korea Institute for Advanced Study. Bachelor of Science, Kyoto University (1997-2001) Master of Science, Kyoto University (2001-2003) Doctor of Science, Kyoto University (2003-2006) Ueda's research explores the deep interplay between complex and symplectic geometry through mirror symmetry, particularly in the context of Calabi-Yau varieties, toric degenerations, and dimer models. His work addresses derived categories, stability conditions, and moduli problems, with recent contributions to noncommutative algebraic geometry and applications in mathematical physics. He has collaborated extensively with researchers like Akira Ishii, Masahiro Futaki, and Shinnosuke Okawa. His publications highlight homological mirror symmetry for K3 surfaces, Grassmannians, and singularities, as well as studies on modular forms, cluster transformations, and the Grothendieck ring. Ueda is a member of the Mathematical Society of Japan and has contributed to educational programs, including graduate lectures on mirror symmetry and symplectic geometry.
Toshiaki Adachi serves as Professor in the Department of Computer Science at Nagoya University's Graduate School of Engineering, with research centered on differential geometry and dynamical systems on complex manifolds. His work bridges theoretical mathematics with geometric structures relevant to computer science applications. Education: Doctor of Science, Nagoya University (1987) Master of Science, Nagoya University (1981) Research Focus: Adachi specializes in trajectories, magnetic flows, and circular motions within complex geometries including projective and hyperbolic spaces. His investigations span characteristic magnetic focal values on Kaehler manifolds, extrinsic circular trajectories on real hypersurfaces, and structural properties of Kaehler graphs. This research reveals fundamental connections between geometric configurations and dynamical behaviors in high-dimensional spaces. Publication Trends: Recent works (2022-2024) demonstrate consistent advancement in geometric trajectory analysis, with emphasis on type (A) real hypersurfaces in complex space forms. His publications increasingly integrate tensor/Cartesian product structures in graph theory with classical differential geometry, showing evolving methodological sophistication while maintaining core focus on magnetic flow dynamics. Awards: No specific scientific awards are documented in the provided materials. Professional Activities: Adachi actively contributes to academic discourse through international conference presentations across Europe and Asia, and serves in leadership capacity within the Mathematical Society of Japan. His editorial work on World Scientific publications since 2011 has significantly shaped contemporary differential geometry literature. Research Infrastructure: While no dedicated laboratory is specified, Adachi leads the Center for Research and Development in Higher Engineering-Education, directing institutional initiatives in engineering pedagogy and curriculum development.
Yuichiro Hoshi is an Associate Professor at the Research Institute for Mathematical Sciences (RIMS) , Kyoto University. His research focuses on arithmetic geometry , particularly anabelian geometry and p-adic Teichmüller theory , with a special emphasis on fundamental groups of algebraic varieties related to hyperbolic curves. Education: M.Sc. in Mathematics, Kyoto University (2006) D.Sc. in Mathematics, Kyoto University (2009) Research Interests: Yuichiro Hoshi's work delves into the deep connections between arithmetic geometry and Galois theory , exploring Grothendieck's anabelian conjecture , section conjecture , and p-adic Teichmüller theory . His research aims to understand the structure of fundamental groups of hyperbolic curves and their applications to number theory and algebraic geometry. Recent Publications: Hoshi has published extensively in top-tier journals, with recent works focusing on anabelian geometry of configuration spaces , hyperbolic curvoids , and inter-universal Teichmüller theory . His collaborations include notable mathematicians such as Shinichi Mochizuki and Shota Tsujimura. Scientific Awards: 28th Inoue Research Award for Young Scientists (2012) 1st IUT Innovator Prize (2024) International Engagement: Hoshi has held visiting positions at institutions such as the Isaac Newton Institute for Mathematical Sciences (Cambridge University), Université de Paris 6 , and Johann Wolfgang Goethe-Universität Frankfurt am Main . He actively organizes and participates in international conferences and seminars, contributing to the global advancement of anabelian geometry and related fields. Contact: Email: yuichiro@kurims.kyoto-u.ac.jp
Yu Yang is a Project Lecturer at the Research Institute for Mathematical Sciences (RIMS) , Kyoto University , Japan. He works in algebraic and arithmetic geometry , with a focus on curves and their moduli spaces in positive characteristic , using fundamental groups to study anabelian phenomena. His research is supported by JSPS KAKENHI grants. Education : PhD from RIMS, Kyoto University (2017), supervised by Shinichi Mochizuki . Research Interests : Yang's work centers on anabelian geometry in positive characteristic, exploring the interplay between topological/combinatorial structures of curves and their fundamental groups. He developed a theory of moduli spaces of fundamental groups to unify anabelian phenomena, inspired by Tamagawa's finiteness theorem. His methods combine algebraic geometry, group theory, and moduli space analysis. Article Trends : His publications and preprints emphasize moduli spaces of fundamental groups, tame/semi-stable reductions, Hasse-Witt invariants, and combinatorial approaches to anabelian geometry. Collaborations include work with Zhi Hu and Runhong Zong on moduli spaces and topology. Grants : Funded by JSPS KAKENHI grants 16J08847 , 20K14283 , and 24K16896 (since April 2024). Conferences : Co-organized the Fundamental groups: Geometry and Arithmetic workshop (2019) and multiple Kyoto+ Workshops with international participants. Teaching : Lecturer roles at Doshisha University (Algebraic Structures), Kyoto Institute of Technology (Linear Algebra), and Sennan University (Mathematical Foundations).
Yoichi Mieda is an Associate Professor at the Graduate School of Mathematical Sciences, University of Tokyo . His research focuses on Number Theory , particularly the Langlands correspondence , Shimura varieties , and Rapoport-Zink spaces . Mathematical Society of Japan His work connects automorphic representations and p-adic reductive groups through the geometry of Shimura varieties . Recent publications emphasize l-adic cohomology of Rapoport-Zink spaces, formal degree conjectures , and p-adic uniformization of algebraic varieties. Key collaborations include research with Naoki Imai on potentially good reduction loci of Shimura varieties and Tetsushi Ito on Lubin-Tate spaces. His contributions have advanced understanding of non-cuspidal cohomology and local Langlands correspondences .
Naoki Imai is an Associate Professor at the Graduate School of Mathematical Sciences, The University of Tokyo, specializing in Arithmetic Geometry, with a focus on Galois representations and moduli spaces. His research explores the intersection of number theory and algebraic geometry, particularly through applications to p-adic cohomology and Shimura varieties. Education: PhD in Mathematical Sciences, The University of Tokyo (2010) Master's in Mathematical Sciences, The University of Tokyo (2009) BSc in Mathematics, The University of Tokyo (2007) Research Interests: Galois representations Moduli spaces of arithmetic objects Geometrization of local Langlands correspondence Selected Awards: MSJ Takebe Katahiro Prize for Encouragement of Young Researchers (2011) Students: Katsuyuki Bando (2025) Joseph Muller (2023) Yuki Yamamoto (2022) Teppei Takamatsu (2022) His recent publications emphasize prismatic cohomology, moduli of p-divisible groups, and automorphic forms, with collaborations spanning institutions like Kyoto University, MIT, and UC Berkeley.
Professor Keiji Oguiso is affiliated with the Graduate School of Mathematical Sciences at the University of Tokyo , where he holds the academic rank of Professor in the Department of Mathematical Algebra . His work bridges Algebraic Geometry and Complex Dynamics , with a focus on Calabi-Yau manifolds , K3 surfaces , and hyperkähler manifolds . Research Highlights: Existence of primitive automorphisms in Calabi-Yau manifolds Non-liftability of automorphisms from positive characteristic to characteristic zero Applications of universal Coxeter groups to birational automorphism groups Investigations into the Kawamata-Morrison Cone Conjecture Selected Publications (2015) span topics like positive entropy automorphisms , non-algebraic hyperkähler manifolds , and Tits alternative , showcasing interdisciplinary trends between algebraic structures, dynamical systems, and geometric transformations. His earlier work (1991-2003) laid foundational insights in Mordell-Weil lattices and local K3 families . Scientific Awards: Takebe Katahiro Prize (1998) Algebra Prize, Mathematical Society of Japan (2009) Osaka University General Education Award (2011) Osaka University Presidential Award for Research (2015) Oguiso serves as an editor of the Journal of Algebraic Geometry and has held visiting positions, including as a KIAS Scholar . His research integrates birational geometry , complex dynamics , and arithmetic geometry , with ongoing collaborations and contributions to hyperkähler and Calabi-Yau manifolds.
Yohei Komori is a Professor at the Department of Mathematics, Faculty of Education and Integrated Arts and Sciences, Waseda University. His research spans hyperbolic geometry, Coxeter groups, Teichmüller theory, and low-dimensional topology. He has made significant contributions to understanding growth rates of hyperbolic Coxeter groups, pleating coordinates in Teichmüller space, and structures of quasi-Fuchsian groups. Education: PhD in Mathematics (Waseda University). Research: Focus on hyperbolic Coxeter groups' growth rates (proved they are Perron/2-Salem numbers), Teichmüller space compactifications, and degenerate families of Riemann surfaces. Publications: 12 papers on Scopus, including works in Proceedings of the Japan Academy and Conformal Geometry and Dynamics . Teaching: Courses in geometry, analysis, and seminars for graduate and undergraduate students. Presentations: Invited talks at international conferences like the Oberseminar Geometrie (Fribourg) and Mini-Workshop on Reflection Groups (Hausdorff Institute).
Nariya Kawazumi is a Professor at the Department of Mathematical Sciences , Graduate School of Mathematical Sciences , University of Tokyo . His research focuses on topology and Riemann surfaces , particularly the cohomology of moduli spaces and automorphism groups of free groups . He utilizes twisted cocycles and canonical differential forms to explore these structures. Keywords: Riemann surface, mapping class group, Magnus expansion, hyperelliptic mapping class group Research Interests include: Topology of moduli spaces of Riemann surfaces Cohomology of automorphism groups of free groups Goldman-Turaev Lie bialgebras Kashiwara-Vergne problems Applications of twisted cocycles Students : Kawazumi has advised 9 PhD students from 1996 to 2020, including Yuuki Tadokoro , Takao Satoh , and Shun Wakatsuki . Collaborations and Workshops : He co-organized international workshops like the Japan-France joint research workshop (2015) and Special day for Teichmueller theory (2017), and contributed to the Berkeley-Tokyo Winter School (2016).
Takuya Sakasai is an Associate Professor in the Department of Global Geometry at the Graduate School of Mathematical Sciences, The University of Tokyo. His research focuses on topology, particularly mapping class groups of surfaces, characteristic classes of bundles, and 3-dimensional topology. Education: He completed his doctoral dissertation titled "Mapping class groups, groups of homology cobordisms of surfaces and invariants of 3-manifolds" at The University of Tokyo in 2006. Research Interests: His work centers on the mapping class group of surfaces, exploring its connections to various fields such as topology, geometry, algebra, complex analysis, and mathematical physics. He investigates the cohomology rings of these groups as characteristic classes of surface bundles and their implications for the moduli space of Riemann surfaces. Additionally, he studies infinite-dimensional Lie algebras related to these structures and constructs new invariants for knots and 3-manifolds using noncommutative algebra. Scientific Awards: In 2007, he received the Takebe Katahiro Encouragement Award from the Mathematical Society of Japan. Workshops and Conferences: He has organized and participated in numerous international workshops, including the "Johnson homomorphisms and related topics" series (2013, 2017, 2019), the "Braids, Configuration Spaces and Quantum Topology" workshop (2015), and the "Topology and Computer" workshops (2013, 2014). Contact: sakasai@ms.u-tokyo.ac.jp
Shane Kelly is an Associate Professor at the Graduate School of Mathematical Sciences, University of Tokyo. His research focuses on algebraic geometry, with emphasis on algebraic K-theory, motivic homotopy theory, and their applications to representation theory. He has held academic positions at institutions including Tokyo Tech and FU Berlin, where he taught courses such as Derived Algebraic Geometry and (Pro)Étale Cohomology. His PhD thesis, completed at Université de Paris-Nord 13 and Australian National University under Denis-Charles Cisinski and Amnon Neeman, explored 'Triangulated categories of motives in positive characteristic.' Key research contributions include studies on cdh-descent, pro-cdh topology, Hodge cohomology filtrations, and the interplay between motivic spectra and Milnor excision. His work frequently involves collaborations with prominent mathematicians like Shuji Saito and Marc Hoyois. Teaching responsibilities span advanced topics in algebraic geometry, linear algebra, and data science, primarily in Japanese. He maintains active research through grants and publications in top-tier journals like Geometry & Topology and Compositio Mathematica. Notable articles include foundational work on log homotopy types (2025), pro-cdh descent (2025), and non-reduced valuation rings (2024). His courses reflect expertise in étale cohomology, derived algebraic geometry, and linear algebra pedagogy. No academic awards are explicitly mentioned, but his prolific publication record underscores his impact in algebraic geometry and related fields.
Yoshiki Oshima is an Associate Professor at the Graduate School of Science , University of Tokyo, affiliated with the Department of Mathematics . His primary research focus lies in the Representation Theory of Lie Groups , with specialized work on induction and restriction of unitary representations using D-modules and coadjoint orbit methods. Research Highlights Lie group representation theory D-module applications in harmonic analysis Coadjoint orbit geometry Branching problems in symmetric pairs Moduli compactifications in algebraic geometry Awards 2021: MSJ Takebe Katahiro Prize (Mathematical Society of Japan) Key Collaborations Notable collaborations include work with T. Kobayashi on symmetric pair classifications, and B. Harris on coadjoint orbit character analysis.
Yasunari Nagai is a Professor at the School of Fundamental Science and Engineering, Faculty of Science and Engineering at Waseda University. He holds a Ph.D. in Mathematical Sciences from the University of Tokyo and specializes in Algebraic Geometry within the broader field of Mathematics. His academic career spans multiple decades with significant contributions to the study of irreducible symplectic manifolds and related areas. Education: 2005: Ph.D. in Mathematical Sciences, University of Tokyo Graduate School of Mathematical Sciences Research Interests: Professor Nagai's primary research focuses on Algebraic Geometry, with particular expertise in irreducible symplectic manifolds, birational geometry, and moduli spaces. His work explores the intricate structures of high-dimensional algebraic varieties and their degenerations, contributing significantly to our understanding of symplectic geometry in the algebraic context. His research often bridges theoretical mathematics with concrete geometric constructions, examining how algebraic structures manifest in geometric settings. Publication Trends: Professor Nagai's publication record shows a consistent focus on irreducible symplectic manifolds and related structures spanning over two decades. His work demonstrates a progression from foundational studies of 4-folds to more complex structures like O'Grady's examples and Mukai flops. A recurring theme is the investigation of degenerations, moduli spaces, and birational transformations in symplectic geometry, with recent work focusing on stratified Mukai flops and invariant Hilbert schemes. Professional Affiliations: Mathematical Society of Japan Waseda Research Institute for Science and Engineering Concurrent Researcher (2024-2026) Research Funding: Professor Nagai has been awarded multiple competitive research grants from the Japan Society for the Promotion of Science, including the current project "Projective models and degeneracy of regular symplectic manifolds" (2022-2027). His previous projects include studies on moduli of sheaves on cubic fourfolds, degeneration of irreducible symplectic varieties, and explicit study of structures of irreducible symplectic manifolds. Academic Leadership: Professor Nagai actively contributes to the mathematical community through teaching advanced courses in Algebra and Algebraic Geometry at both undergraduate and graduate levels. He supervises Master's theses and leads research seminars on specialized topics in algebraic geometry, mentoring the next generation of mathematicians in these complex fields.
Takahiro Kitayama is an Associate Professor at the Graduate School of Mathematical Sciences, University of Tokyo . His work focuses on 3-manifold topology with emphasis on non-commutative deck transformations , geometric group theory , and moduli spaces of representations . Research Interests : 3-manifolds, Discrete Groups, Character Varieties, Torsion Invariants, Morse-Novikov Theory Key Contributions : Foundations for applying higher-dimensional representation moduli spaces to low-dimensional topology; Generalization of Culler-Shalen theory; Interactions between geometric group theory and 3-manifold topology Recent Publications highlight applications of twisted Alexander polynomials , Blanchfield pairings , and L-functions to understanding incompressible surfaces , virtual fibering , and knot invariants . His work bridges algebraic topology, geometric group theory, and quantum topology. Awards : Dean Prize, Graduate School of Mathematical Sciences, University of Tokyo (2008) Dean Prize, Graduate School of Mathematical Sciences, University of Tokyo (2011) Education : Ph.D. in Mathematical Science, University of Tokyo (2011) M.Sc. in Mathematical Science, University of Tokyo (2008)
