KEIO RESEARCHERS INFORMATION SYSTEM

Papers 【 Display / hide 】

Papers 【 Display / hide 】

• Siegel disks on rational surfaces

  Uehara T.

  Atti Della Accademia Nazionale Dei Lincei Classe Di Scienze Fisiche Matematiche E Naturali Rendiconti Lincei Matematica E Applicazioni 34 ( 1 ) 235 - 263 2023

  ISSN  11206330

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  We show the existence of a rational surface automorphism of positive entropy with a given number of Siegel disks. Moreover, among automorphisms obtained from quadratic birational maps on the projective plane fixing irreducible cubic curves, we find out an automorphism of positive entropy with multiple Siegel disks.

  • Access to Document (DOI)

• A gluing construction of projective K3 surfaces

  Koike T., Uehara T.

  Epijournal De Geometrie Algebrique 6 2022

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  We construct a non-Kummer projective K3 surface X which admits compact Levi-flats by holomorphically patching two open complex surfaces obtained as the complements of tubular neighborhoods of elliptic curves embedded in blow-ups of the projective plane at nine general points.

  • Access to Document (DOI)

Research Projects of Competitive Funds, etc. 【 Display / hide 】

Research Projects of Competitive Funds, etc. 【 Display / hide 】

• 複素曲面上の力学系の構成と大域解析

  2023.04

  -

  2028.03

  基盤研究(C), Principal investigator

Courses Taught 【 Display / hide 】

Courses Taught 【 Display / hide 】

• ADVANCED LINEAR ALGEBRA

  2026

• INTRODUCTION TO LIFE INSURANCE

  2026

• LINEAR ALGEBRA

  2026

• INTRODUCTION TO PROBABILITY THEORY 1

  2026

• INTRODUCTION TO PROBABILITY THEORY 2

  2026

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