KATO Takao 加藤崇雄

… Alternative Names

加藤宗雄カトウタカオ

加藤崇雄カトウタカオ

Less

Researcher Number	10016157
External Links
Affiliation (based on the past Project Information) *help	2011 – 2016: 山口大学, その他部局等, 名誉教授 2013 – 2014: 山口大学, 理学部, 名誉教授 2011: 山口大学, 理学部, 教授 2009: Yamaguchi University, 名誉教授 2009: 山口大学, 理学部, 名誉教授 … More 2007 – 2008: Yamaguchi University, 大学院・理工学研究科, 教授 1994 – 2008: Yamaguchi University, 理学部, 教授 2006: Yamaguchi University, Graduate School of Science and Engineering, Professor, 大学院理工学研究科, 教授 1988 – 1990: 山口大学, 理学部, 教授 1986: 山口大学, 理学部, 助教授 Less
Review Section/Research Field	Principal Investigator Basic analysis / Basic analysis / 解析学 Except Principal Investigator Algebra / Algebra / 解析学 / Basic analysis / Geometry / 代数学・幾何学 / Basic analysis / Fundamental theory of informatics
Keywords	Principal Investigator gonality / 代数曲線 / 閉リーマン面 / 有理型函数 / 誤り訂正符号理論 / error-correcting coding theory / meromorphic functions / algebraic curves / compact Riemann surfaces / Weierstrass 点 … More / リーマン面 / Weierstrass点 / linear systems / 特殊線形系 / Luroth semigroup / Linear series / Algebraic curve / Weierstrass point / gonality 列 / bielliptic / ブリル・ネーター理論 / 羽リーマン面 / Fermat曲線 / normal generation / Brill-Noether theory / meromorphic function / algebraic curve / compact Riemann surface / 正規生成性 / Brill-Noether 理論 / 閉 Riemann 面 / ２葉被覆 / 閉 Riemann面 / hyperelliptic / 平面代数曲線 / 閉リ-マン面 … More Except Principal Investigator 代数曲線 / 特殊線形系 / Algebraic Curve / 等角写像 / リーマン面 / Weierstrass pair / 正則写像 / Brill-Nother理論 / conformal mapping / Riemann surface / 擬等角写像 / 代数幾何 / タイヒミュラー空間 / 極値的長さ / Brill-Nother Theory / Special Linear System / 正標数 / Hermitian Curve / 国際研究者交流 / 誤り訂正符号 / Hermitian曲線 / 代数曲線符号 / Brill-Noether理論 / properly discontinuous group / 擬順序 / 基本領域 / 真性不連続群 / AG Code / Error correcting Code / Special Divisor / 代数幾何符号 / Gonality / 特殊因子 / 対称空間 / 同変写像 / 線形系 / 双曲的長さ / 有界対称領域 / Hermitian curve / Positive characteristic / Finite field / Coding theory / Algebraic curve / Algebraic geometry / 韓国 / 有限体 / Goppa符号 / 代数曲線論 / 符号理論 / 情報基礎 / 代数学 / BrilI-Nother理論 / quasi-order / quadratic differential / circularizable domain / hyperbolically maximal domain / 有理型関数 / 極値問題 / 不連続群 / 二次微分 / 円形化可能領域 / 双曲的極大領域 / 代数曲面 / Positive Characteristic / Minimum distance / Two-point code / A Gcode / Error correcting code / 設計距離 / 大韓民国 / 国際情報交換 / 最小距離 / 2点符号 / ブラジル:韓国 / Castelnuovo's bound / Weierstrass Pair / special linear system / Brill-Noether Theory / quasi order / fundamental domain / extremal length / 解析接続 / アールフォース関数 / ランキンの卵 / 線形誤り訂正符号 / フェルマー曲線 / ペアノ曲線 / マルチン境界 / Line Bundle / Linear System / 線形束 / global solutions / growth estimate / distortion estimate / Bloch functions / Beltrami differential / variational formula / quasiconformal mapping / singular integral / 大域解 / 増大度評価 / 歪曲評価 / Bloch函数 / Beltrami微分 / 変分公式 / 特異積分作用素 / 符号 / 特異因子 / Weierstrass点 / 誤まり訂正符合 / 誤まり訂正符号 / mapping degree / equivariant maps / Euler class / representation ring / equivariant K-theory / Borsuk-Ulam theorem / トーラス作用 / 同変K理論 / 写像度 / 周変写像 / オイラー類 / 表現環 / 周変K理論 / Borsuk-Ulamの定理 / Teichmuller space / holomorphic mapping / タイヒシュラー空間 / partial differential equation of 1st order / Lie algebra / totally geodesic submanifold / Grassmann geometry / submanifold / symmetric space / 一階偏微分方程式系 / リー代数 / 全測地的部分多様体 / グラスマン幾何 / 部分多様体 / Fanction thery / Complex function theory / anformal mapping / Value distribution / Kleinian grouy / Riemam surface / potential theory / 関析関数 / 複素多様体 / 多変数解析関数 / 多変数関数論 / 複素解析学 / 値分布論 / クライン群 / ポテンシャル論 / Oreの条件 / 古典的商環 / 商環 / torsion理論 / Φ-trivial extension / ユニタリ表現 / 積分表示 / 調和関数 / リー群 / メービウス反転 / オイラー標数 / レフシェッツ数 / 不動点指数 / クリフォード指数 / コクセター群 / ガロア点 / ワイアシュトラス半群 / 自己同型群 / ブリル＝ネーター理論 / ブリル=ネーター理論 / 極値截線写像 / 単葉関数 / 穴あきトーラス / ブリルニネーター理 / ブリル=ネーター理 / モデュライ / 等質空間 / 調和解析 / 表現 / Lie群 / LSカテゴリー / 臨界軌道型 / 臨界軌道 / 臨界点 / 可微分関数 / Hessian manifolds / affine Chern classes / flat vector bundle / flat affine manifold Less

Special linear systems and Weierstrass points on compact Riemann surfacesPrincipal Investigator
- Principal Investigator
  
  Kato Takao
- Project Period (FY)
  2014 – 2016
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Linear Systems on Algebraic Curves and its Applications
- Principal Investigator
  
  OHBUCHI Akira
- Project Period (FY)
  2012 – 2014
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  The University of Tokushima
Studies on special linear series and Weierstrass points on compact Riemann surfacesPrincipal Investigator
- Principal Investigator
  
  KATO Takao
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Linear Systems and Projective Models on Algebraic Curves
- Principal Investigator
  
  OHBUCHI Akira
- Project Period (FY)
  2009 – 2011
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  The University of Tokushima
Linear Systems on Algebraic Curves and its Applications
- Principal Investigator
  
  OHBUCHI Akira
- Project Period (FY)
  2007 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  The University of Tokushima
Special linear systems on compact Riemann surfacesPrincipal Investigator
- Principal Investigator
  
  KATO Takao
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Holomorphic mappings of Riemann surfaces with handles
- Principal Investigator
  
  MASUMOTO Makoto
- Project Period (FY)
  2007 – 2009
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Algebraic Curves and its Applications
- Principal Investigator
  
  OHBUCHI Akira
- Project Period (FY)
  2005 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  The University of Tokushima
Theory of algebraic curves motivated by coding theory
- Principal Investigator
  
  HOMMA Masaaki
- Project Period (FY)
  2005 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Kanagawa University
Special linear systems on Riemann surfacesPrincipal Investigator
- Principal Investigator
  
  KATO Takao
- Project Period (FY)
  2005 – 2006
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Extremal problems and holomorphic mappings of Riemann surfaces
- Principal Investigator
  
  MASUMOTO Makoto
- Project Period (FY)
  2004 – 2005
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Error correcting codes from the viewpoints of algebraic curves and finite geometry
- Principal Investigator
  
  HOMMA Masaaki
- Project Period (FY)
  2003 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Fundamental theory of informatics
- Research Institution
  Kanagawa University
Special Linear System on an Algebraic Curve and its Application
- Principal Investigator
  
  OHBUCHI Akira
- Project Period (FY)
  2003 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  The University of Tokushima
Special linear systems on compact Riemann surfacesPrincipal Investigator
- Principal Investigator
  
  KATO Takao
- Project Period (FY)
  2003 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Special Linear Systems on Algebraic Curves
- Principal Investigator
  
  OHBUCHI Akira
- Project Period (FY)
  2001 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  The University of Tokushima
Theory of algebraic curves with application toward the coding theory
- Principal Investigator
  
  HOMMA Masaaki
- Project Period (FY)
  2001 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Kanagawa University
Holomorphic mappings and moduli of Riemann surfaces
- Principal Investigator
  
  MASUMOTO Makoto
- Project Period (FY)
  2000 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Meromorphic functions on compact Riemann surfacesPrincipal Investigator
- Principal Investigator
  
  KATO Takao
- Project Period (FY)
  2000 – 2001
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Special Linear Linear Systems on Algebraic Curves
- Principal Investigator
  
  OBBUCHI Akira
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  The University of Tokushima
リーマン面上の極値的長さ、双曲的長さとモデュライ問題
- Principal Investigator
  
  増本誠
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Exploratory Research
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Meromorphic functions on Riemann surfaces, Weierstrass pointsPrincipal Investigator
- Principal Investigator
  
  KATO Takao
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Study of function fields with particular properties, and its application to coding theory
- Principal Investigator
  
  HOMMA Masaaki
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Algebra
- Research Institution
  Kanagawa University
Variational Formula for Quasiconformal Mappings
- Principal Investigator
  
  YANAGIHARA Hiroshi
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Basic analysis
- Research Institution
  Yamaguchi University
Study on Submanifold Theory of Compact Riemannian Symmetric Spaces
- Principal Investigator
  
  NAITOH Hiroo
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Geometry
- Research Institution
  Yamaguchi University
Research on holomorphic mappings between Riemann surfaces
- Principal Investigator
  
  MASUMOTO Makoto
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  解析学
- Research Institution
  Yamaguchi University
Transformation Group Theory and Critical Point Theory
- Principal Investigator
  
  KOMIYA Katsuhiro
- Project Period (FY)
  1997 – 1998
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Yamaguchi University
リーマン面上の有理型函数の研究Principal Investigator
- Principal Investigator
  
  加藤崇雄
- Project Period (FY)
  1996
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Yamaguchi University
変換群論と臨界点論の研究
- Principal Investigator
  
  小宮克弘
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  Geometry
- Research Institution
  Yamaguchi University
Lie群の表現と等質空間上の調和解析
- Principal Investigator
  
  井上透
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Yamaguchi University
On the Luroth semigroup of smooth Plane curvesPrincipal Investigator
- Principal Investigator
  
  KATO Takao
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for Overseas Scientific Survey.
- Research Institution
  Yamaguchi University
Integrated research on potential theory in manifolds
- Principal Investigator
  
  MIZUTA Yoshihiro
- Project Period (FY)
  1994 – 1995
- Research Category
  
  Grant-in-Aid for Co-operative Research (A)
- Research Field
  
  解析学
- Research Institution
  HIROSHIMA UNIVERSITY
リ-マン面上の有理型函数とワイエルストラス点の研究Principal Investigator
- Principal Investigator
  
  加藤崇雄
- Project Period (FY)
  1990
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Yamaguchi University
Hessian manifoldsの研究
- Principal Investigator
  
  SHIMA Hirohiko
- Project Period (FY)
  1989
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Yamaguchi University
Torsion理論と関連した問題の研究
- Principal Investigator
  
  倉田吉喜
- Project Period (FY)
  1988
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Yamaguchi University
Lie群の表現と等質空間上の調和解析
- Principal Investigator
  
  井上透
- Project Period (FY)
  1987 – 1988
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  解析学
- Research Institution
  Yamaguchi University
多様体と群作用の研究
- Principal Investigator
  
  小宮克弘
- Project Period (FY)
  1986
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  代数学・幾何学
- Research Institution
  Yamaguchi University

All 2017 2016 2014 2013 2012 2011 2010 2009 2008 2007 2005 2004 Other

All Journal Article Presentation

[Journal Article] A characterization of double coverings of curves2016
- Author(s)
  Takao Kato and Gerriet Martens
- Journal Title
  
  Manuscripta Mathematicae
  
  Volume: 150 Pages: 465-474
- Peer Reviewed / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400141
[Journal Article] Weierstrass points with first non-gaps equal to n and n + 22014
- Author(s)
  M. Coppens and T. Kato
- Journal Title
  
  Kyushu J. Math.
  
  Volume: 68 Pages: 139-147
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26400141
[Journal Article] Weierstrass points with first non-gaps equal to n and n+22014
- Author(s)
  M. Coppens and T. Kato
- Journal Title
  
  Kyushu Journal of Mathematics
  
  Volume: 65 Pages: 139-147
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540209
[Journal Article] Variability Regions of close-to-convex functions2014
- Author(s)
  T. Kato, T. Sugawa and L-M. Wang
- Journal Title
  
  Annales Polonici Mathematici
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540209
[Journal Article] Weierstrass Points on Bielliptic Riemann Surfaces2014
- Author(s)
  T. Kato
- Journal Title
  
  Hokkaido Mathematical Journal
  
  Volume: 印刷中
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540209
[Journal Article] The gonality sequence of a curve with involutions2014
- Author(s)
  T. Kato and G. Martens
- Journal Title
  
  Arch. fu¨r Math.
  
  Volume: 103 Pages: 111-116
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26400141
[Journal Article] Weierstrass points with first non-gaps equal to n and n + 22014
- Author(s)
  T. Kato and M. Coppens
- Journal Title
  
  Kyushu J. Math
  
  Volume: 68, no. 1 Pages: 139-147
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540209
[Journal Article] Variability Regions of close- to-convex functions2014
- Author(s)
  T. Kato, T. Sugawa and L-M. Wang
- Journal Title
  
  Annales Polonici Mathematici
  
  Volume: 111 Pages: 89-105
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-26400141
[Journal Article] Weierstrass points with first two non-gaps equal to n and n+22013
- Author(s)
  M. Coppens and T. Kato
- Journal Title
  
  Kyusyu Journal of Mathematics
  
  Volume: 未定
- NAID
  130004941521
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540209
[Journal Article] A curve of genus 5 having 24 Weierstrass points of weight 52013
- Author(s)
  T. Kato
- Journal Title
  
  Hokkaido Mathematical Journal
  
  Volume: 未定
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540209
[Journal Article] Bi-elliptic Weierstrass points on curves of genus 52011
- Author(s)
  T. Kato, K. Magaard and H. Völklein
- Journal Title
  
  Indag. Math. (N.S.)
  
  Volume: 22, no. 1-2 Pages: 116-130
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540209
[Journal Article] Quitient Curve of Smooth Plane Curves with Automorphism2010
- Author(s)
  Akira Ohbuchi, Takao Kato, Takeshi Harui
- Journal Title
  
  Kodai Mathematical Journal
  
  Volume: Vol.33, No.1 Pages: 164-172
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540043
[Journal Article] The minimal degree of plane models of algebraic curves and double coverings2009
- Author(s)
  Akira Ohbuchi, Takao Kato, Takeshi Harui
- Journal Title
  
  Geomertiae Dedicata
  
  Volume: Vol.30, No.1 Pages: 43-54
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540043
[Journal Article] The minimal degree of plane models of algebraic curves and double coverings2009
- Author(s)
  Takeshi Harui, Takao Kato, Akira Ohbuchi
- Journal Title
  
  Geometriae Dedicata 第143巻
  
  Pages: 181-192
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540187
[Journal Article] The minimal degree of plane models of algebraic curves and double coverings2009
- Author(s)
  T. Harui, T. Kato, A. Ohbuchi
- Journal Title
  
  Geom. Dedicata 143
  
  Pages: 181-192
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540186
[Journal Article] On Weierstrass semigroups and sets: a review with new results2009
- Author(s)
  C. Carvalho, T. Kato
- Journal Title
  
  Geom. Dedicata 139
  
  Pages: 195-210
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540186
[Journal Article] On Weierstrass semigroups and sets: a review with new results2008
- Author(s)
  Ciero Carvalho, Takao Kato
- Journal Title
  
  Geometriae Dedicata 第139巻
  
  Pages: 195-210
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540187
[Journal Article] Nonexistence of a [gq(5, d), 5, d]q code for 3q4-4q3-2q+1≦d≦3q4-4q3-q2008
- Author(s)
  Eun Ju Cheon, Takao Kato, Seon Jeong Kim
- Journal Title
  
  Discrete Mathematics 第308巻
  
  Pages: 3082-3089
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540187
[Journal Article] n the minimum length of some linear codes of dimension 62008
- Author(s)
  Eun Ju Cheon, Takao Kato
- Journal Title
  
  Bulletin of the Korean Mathematical Society 第45巻
  
  Pages: 419-425
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540187
[Journal Article] On the minimum length of some linear codes of dimension 62008
- Author(s)
  E.J. Cheon, Takao Kato
- Journal Title
  
  Bull. Korean Math. Soc. 45
  
  Pages: 419-425
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540186
[Journal Article] Nonexistence of a [gq(5; d); 5; d]q code for 3q4-4q3-2q+1≤d≤3q4-4q3-q2008
- Author(s)
  E.J. Cheon, T. Kato, S.J. Kim
- Journal Title
  
  Discrete Math. 308
  
  Pages: 3082-3089
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540186
[Journal Article] Codes from curves with total inflection points, Designs2007
- Author(s)
  Cicero Carvalho, Takao Kato
- Journal Title
  
  Codes and Cryptogra-phy 第45巻
  
  Pages: 359-364
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540187
[Journal Article] Codes from curves with total inflection points2007
- Author(s)
  C. Carvalho and T. Kato
- Journal Title
  
  Des. Code Cryptogr. 45
  
  Pages: 359-364
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540186
[Journal Article] On the minimum length of some linear codes of dimension 52005
- Author(s)
  Cheon, E., Kato, T., Kim, S
- Journal Title
  
  Des.Codes Cryptogr. 37
  
  Pages: 421-434
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-17540160
[Journal Article] Nonexistence of projective codes of dimension 5 which attain the Griesmer bound for q^4-2q^2-2q+1【less than or equal】d【less than or equal】q^4-2q^2-q2005
- Author(s)
  Cheon, E., Kato, T., Kim, S
- Journal Title
  
  Des.Codes Cryptogr. 36
  
  Pages: 289-299
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-17540160
[Journal Article] Nonexistence of projective codes of dimension 5 which attain the Griesmer bound for q^4 - 2q^2 - 2q +1 < d< q^4 - 2q^2 - q2005
- Author(s)
  Cheon, E., Kato, T., Kim, S
- Journal Title
  
  Des. Codes Cryptogr. 36
  
  Pages: 289-299
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-17540160
[Journal Article] Nonexistence of projective codes of dimension 5 which attain the Griesmer bound for q^4 - 2q^2 - 2q + 1 < d < q^4 - 2q^2 - q2005
- Author(s)
  Cheon, E., Kato, T., Kim, S
- Journal Title
  
  Des.Codes Cryptogr. 36
  
  Pages: 289-299
- Data Source
  KAKENHI-PROJECT-17540160
[Journal Article] On the minimum length of some linear codes of dimension 52005
- Author(s)
  Cheon, E., Kato, T., Kim, S
- Journal Title
  
  Des. Codes Cryptogr. 37
  
  Pages: 421-434
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-17540160
[Journal Article] On the variety W^r_d(C) whose dimension is at least d-3r-22004
- Author(s)
  Kato, T.
- Journal Title
  
  J.Pure Appl.Algebra 192
  
  Pages: 159-172
- Data Source
  KAKENHI-PROJECT-15540173
[Journal Article] On the variety W^r_d(C) whose dimension is at least d-3r-22004
- Author(s)
  Kato, T., Keem, C., Ohbuchi, A.
- Journal Title
  
  J.Pure Appl.Algebra 192
  
  Pages: 159-172
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540173
[Journal Article] On the variety W^r_d(C) whose dimension is at least d - 3r - 22004
- Author(s)
  Kato, T., Keem, C., Ohbuchi, A.
- Journal Title
  
  J.Pure Appl.Algebra 192
  
  Pages: 159-172
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540173
[Journal Article] On the variety W_d^r(C) whose dimension is at least d-3r-22004
- Author(s)
  Takao Kato
- Journal Title
  
  Journal of Pure and Applied Algebra 192巻
  
  Pages: 159-172
- Data Source
  KAKENHI-PROJECT-16540158
[Journal Article] On the minimum length of some linear codes of dimension 5
- Author(s)
  Cheon, E.J., Kato, T., Kim, S.J.
- Journal Title
  
  Des.Codes Cryptogr. (in press)
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540173
[Journal Article] Variability Regions of close-to-convex functions
- Author(s)
  T. Kato, T. Sugawa and L-M. Wang
- Journal Title
  
  Annales Polonici Mathematici
  
  Volume: (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540209
[Journal Article] Quotient curves of smooth plane curves with automorphisms
- Author(s)
  T. Harui, T. Kato, J. Komeda, A. Ohbuchi
- Journal Title
  
  to appear in Kodai Math. J
- NAID
  130004687928
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19540186
[Journal Article] Weierstrass Points on Bielliptic Riemann Surfaces
- Author(s)
  T. Kato
- Journal Title
  
  Hokkaido Math. J
  
  Volume: (印刷中)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540209
[Journal Article] Nonexistence of projective codes of dimension 5 which attain the Griesmer bound for q^4 - 2q^2 - 2q + 1 【less than or equal】 d 【less than or equal】 q^4 - 2q^2 - q
- Author(s)
  Cheon, E.J., Kato, T., Kim, S.J.
- Journal Title
  
  Des.Codes Cryptogr. (in press)
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-15540173
[Journal Article] On the minimum length of some linear codes of dimension 5
- Author(s)
  Cheon, E., Kato, T., Kim, S
- Journal Title
  
  Des.Codes Cryptogr. (印刷中)
- Data Source
  KAKENHI-PROJECT-17540160
[Journal Article] On the minimu length of some linear codes of dimension 6
- Author(s)
  Cheon, E., Kato, T.
- Journal Title
  
  (投稿中)
- Data Source
  KAKENHI-PROJECT-17540160
[Journal Article] On the minimum length of some linear codes of dimension 5
- Author(s)
  Cheon, E.J., Kato, T., Kim, S.J.
- Journal Title
  
  Des.Codes Cryptogr. (印刷中)
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540173
[Journal Article] Nonexistence of projective codes of dimension 5 which attain the Griesmer bound for q^4-2q^2-2q+1<d<q^4-2q^2-q
- Author(s)
  Cheon, E.J., Kato, T., Kim, S.J.
- Journal Title
  
  Des.Codes Cryptogr. (印刷中)
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-15540173
[Journal Article] Codes from curves with total inflection points
- Author(s)
  Carvalho C., Kato, T.
- Journal Title
  
  (投稿中)
- Data Source
  KAKENHI-PROJECT-17540160
[Presentation] Torres' bound for gamma hyperelliptic Weierstrass points2017
- Author(s)
  Takao Kato
- Organizer
  Conference on algebraic geometry and coding theory
- Place of Presentation
  Gyeongsang National University，晋州市（韓国）
- Year and Date
  2017-03-17
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-26400141
[Presentation] n, n+2 を最初の非空隙値に持つ Weierstrass 点に関するいくつかの注意2012
- Author(s)
  加藤崇雄
- Organizer
  代数幾何ミニ研究集会
- Place of Presentation
  埼玉大学理学部(さいたま市)
- Year and Date
  2012-03-06
- Data Source
  KAKENHI-PROJECT-23540209
[Presentation] Remarks on Weierstrass points with first two non- gaps equal n and n + 22012
- Author(s)
  M. Coppens and T. Kato
- Organizer
  International Conference on Curve theory and Coding theory
- Place of Presentation
  晋州市(韓国)
- Year and Date
  2012-02-20
- Data Source
  KAKENHI-PROJECT-23540209
[Presentation] Remarks on Weierstrass points with first two non-gaps equal n and n+22012
- Author(s)
  Takao Kato
- Organizer
  International workshop on Algebraic Geometry and Coding Theory(招待講演)
- Place of Presentation
  Gyeongsang National University, Korea
- Data Source
  KAKENHI-PROJECT-23540209
[Presentation] Bielliptic Weierstrass points2009
- Author(s)
  Takao Kato
- Organizer
  XVIII Latin American Algebra Colloquium
- Place of Presentation
  S~ao Pedro, Brazil
- Year and Date
  2009-08-07
- Data Source
  KAKENHI-PROJECT-19540186
[Presentation] ある特殊なWeierstrass空隙列について2009
- Author(s)
  加藤崇雄
- Organizer
  Workshop on Galois points and related topics
- Place of Presentation
  神奈川大学富士見高原研修所
- Year and Date
  2009-06-06
- Data Source
  KAKENHI-PROJECT-19540186
[Presentation] Bielliptic Weierstrass points2009
- Author(s)
  Takao Kato
- Organizer
  XVIII Latin American Algebra Colloquium
- Place of Presentation
  Sao Pedro, Brazil
- Year and Date
  2009-08-07
- Data Source
  KAKENHI-PROJECT-19540186
[Presentation] Bielliptic Weierstrass points2009
- Author(s)
  加藤崇雄
- Organizer
  代数幾何学講演会
- Place of Presentation
  埼玉大学
- Year and Date
  2009-07-02
- Data Source
  KAKENHI-PROJECT-19540186

1. OHBUCHI Akira (10211111)

# of Collaborated Projects: 17 results

# of Collaborated Products: 6 results
2. HONMA Masaaki (80145523)

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3. MASUMOTO Makoto (50173761)

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KATO Takao 加藤 崇雄

加藤 宗雄 カトウ タカオ

加藤 崇雄 カトウ タカオ

Research Projects

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Co-Researchers

Special linear systems and Weierstrass points on compact Riemann surfacesPrincipal Investigator

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Studies on special linear series and Weierstrass points on compact Riemann surfacesPrincipal Investigator

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Special linear systems on compact Riemann surfacesPrincipal Investigator

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Special linear systems on Riemann surfacesPrincipal Investigator

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Special linear systems on compact Riemann surfacesPrincipal Investigator

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KATO Takao 加藤崇雄

加藤宗雄カトウタカオ

加藤崇雄カトウタカオ