Koyama Daisuke 小山大介

… Alternative Names

KOYAMA Daisuke 小山大介

小山大介コヤマダイスケ

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Researcher Number	60251708
Other IDs
Affiliation (Current)	2022: 電気通信大学, 大学院情報理工学研究科, 助教
Affiliation (based on the past Project Information) *help	2019 – 2021: 電気通信大学, 大学院情報理工学研究科, 助教 2011 – 2013: 電気通信大学, 情報理工学(系)研究科, 助教 2011: 電気通信大学, 情報理工学研究科, 助教 2010 – 2011: 電気通信大学, 大学院・情報理工学研究科, 助教 2007 – 2009: 電気通信大学, 電気通信学部, 助教 … More 2006: 電気通信大学, 電気通信学部, 助手 2002 – 2004: 電気通信大学, 電気通信学部, 助手 1998 – 2000: 電気通信大学, 電気通信学部, 助手 1994 – 1995: 電気通信大学, 電気通信学部, 助手 Less
Review Section/Research Field	Principal Investigator General mathematics (including Probability theory/Statistical mathematics) / Basic Section 12040:Applied mathematics and statistics-related Except Principal Investigator General mathematics (including Probability theory/Statistical mathematics) / General mathematics (including Probability theory/Statistical mathematics) / Engineering fundamentals
Keywords	Principal Investigator 有限要素法 / 領域分割法 / 最適化シュワルツ法 / 不連続ガレルキン有限要素法 / 波動問題 / 平面弾性問題 / コルンの不等式 / 外部問題 / 外部ヘルムホルツ問題 / シュワルツ法 … More / ヘルムホルツ方程式 / 多重散乱問題 / ベッセル関数 / 誤差解析 / 音響散乱問題 / 線形水波散乱問題 / 非適合有限要素法 / 内部ペナルティ法 / 重調和方程式 / 事前差異評価 / 事前誤差評価 / 正定値対称行列の条件数 / CG法 / ICCG法 / 非適合型有限要素法 / 内部ペナルティー法 / 共役傾斜法 / 混合法 / 非適合要素 / 不連続ガレルキン法 / 数理解析 … More Except Principal Investigator ラドン変換 / 有限要素法 / 有限要素解析 / 音場・構造体連成系 / 移流拡散方程式 / 音声生成 / アンテナ / FDTD法 / PML / ディリクレ・ノイマン写像 / ニューラルネットワーク / 代用電荷法 / 翼の等角写像 / ヘルムホルツ方程式 / 基本解近似解法 / Fundamental solution method / 磁気流体スペクトル / スチェクロフ作用素 / Tayler-Couette流 / 遅延微分方程式 / ニューマークのベータ法 / 高次放射条件 / 領域分割法 / スチュクロフ作用素 / 波動伝播現象 / 形状設計 / 大規模固有値計算 / 基本解解法 / 声道形状設計 / 並列計算手法 / 最適化アルゴリズム / 境界要素法 / 地球シミュレータ / 遺伝的アルゴリズム / 波動伝搬 / FDTD / マルチコア分散並列 / 複素共鳴固有値 / エッジトーン / 数値計算 / DtN有限要素法 / マルチコア / 高電導度モデル / 波動伝播 / エアリード / 高伝導度モデル / 多重散乱問題 / スチェクロス作用素 / 有限要素-代用電荷結合解法 / 有限要素-基本解近似結合解法 / 二次元外部ラプラス問題 / 二次元外部ヘルムホルツ問題 / ルンゲクッタ法 / ニューマーク法 / 二次元ラプラス外部問題 / Steklov operator / Finite Element-Charge Simulation combined method / Finite Element-Fundamental Solution combined method / 2 dimensional exterior Laplace problem / 2 dimensional exterior Helmholtz problem / Neural network / Runge-Kutta method / Newmark's method / コンピュータトモグラフィ / 選点法 / ポアソン方程式 / 人工境界条件 / データ同化 / Neural Network / Computed Tomography / Radon Transformation / Collocation Method / Poisson Equation / Helmholtz Equation / Artificial Boundary Condition / Data Assimilation / 国際研究者交流 / 二次元外部帰着波動問題 / 音声生成声問題 / 誤差評価定数の上界決定 / 多層ニューラルネットワーク / 風上技法と特性曲線法 / 円外帰着波動問題基本解近似解法の誤差評価 / 二次元外部帰着波動問題の有限要素-基本解近似結合解法 / 音声発声の有限要素解析 / 逆問題の多層ニューラルネットワーク解法 / 風上近似・特性曲線近似による流れ問題有限要素数値解法 / ディリクレ境界条件円外帰着波動問題 / 基本解近似解法誤差評価 / 音声生成問題有限要素数値シミュレーション / 三次元ヘルムホルツ問題の仮想領域法・有限要素近似 / 2流体問題質量保存有限要素スキーム / レーリー・ベナール方程式の有限要素スキーム / ニュラルネットワーク / 水の波散乱シミュレータ / 無限領域ヘルムホルツ問題 / 円外帰着波動ノイマン境界条件問題 / ニューラルネットワーク変分同化法 / 無限領域向有限要素法 / 有限要素流体計算 / International exchange researchers / 2D exterior reduced wave problems / Conformal mapping of wing / Vocal generation problems / Error estimation constants in FEM / Multi layer neural network / Upwinding technique and method of characteristic curve / 外部ヘルムホルツ問題 / 固有値変分公式 / 仮想領域法 / 調音モデル / 超音波 / 反復解法 / Exterior Helmholtz problem / Finite element method / Variational formula of eigenvalue / Dirichlet to Neumann mapping / Voice generation / Fictitious domain method / Articulation model Less

Application of interior penalty methods to mixed finite element method using nonconforming elementsPrincipal Investigator
- Principal Investigator
  
  Koyama Daisuke
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 12040:Applied mathematics and statistics-related
- Research Institution
  The University of Electro-Communications
Study on finite element methods for wave problems in unbounded domains and development of associated FEM softwaresPrincipal Investigator
- Principal Investigator
  
  KOYAMA Daisuke
- Project Period (FY)
  2011 – 2013
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  The University of Electro-Communications
Study on numerical methods of wave propagation phenomena and its applications to information and energy transmission problems
- Principal Investigator
  
  KAKO Takashi
- Project Period (FY)
  2009 – 2011
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  The University of Electro-Communications
Numerical methods for wave propagation phenomena in unbounded region and its applications to shape design problems
- Principal Investigator
  
  KAKO Takashi
- Project Period (FY)
  2006 – 2008
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  The University of Electro-Communications
Finite Element Methods for Huge Domain and Domain Decomposition Methods with Related Topics
- Principal Investigator
  
  USHIJIMA Teruo
- Project Period (FY)
  2002 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  The University of Electro-Communications
Study of Numerical Methods for Wave Propagation Phenomena in Unbounded Region and its Applications
- Principal Investigator
  
  KAKO Takashi
- Project Period (FY)
  2002 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  The University of Electro-Communications
CT image reconstruction method for small amount of projection data and differential equation solution method by neural network
- Principal Investigator
  
  TAKEDA Tatsuoki
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Engineering fundamentals
- Research Institution
  The University of Electro-Communications
Finite Element Method for Huge Domains and Related Topics
- Principal Investigator
  
  USHIJIMA Teruo
- Project Period (FY)
  1998 – 1999
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  The University of Electro-Communications
振動・波動現象の数理解析と数値解析
- Principal Investigator
  
  加古孝
- Project Period (FY)
  1995
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  The University of Electro-Communications
微分方程式の解の構造の解析とその応用
- Principal Investigator
  
  KAKO Takashi
- Project Period (FY)
  1994
- Research Category
  
  Grant-in-Aid for General Scientific Research (C)
- Research Field
  
  General mathematics (including Probability theory/Statistical mathematics)
- Research Institution
  The University of Electro-Communications

All 2021 2014 2013 2012 2011 2010 2009 2008 2007 2003

All Journal Article Presentation Book

[Book] 計算力学理論ハンドブック2010
- Author(s)
  田端正久, 萩原一郎(監訳), 第3章訳:小山大介
- Total Pages
  736
- Publisher
  朝倉書店
- Data Source
  KAKENHI-PROJECT-21540116
[Journal Article] Strong L^p convergence associated with Rellich-type discrete compactness for ciscontinuous Galerkin FEM2014
- Author(s)
  Fumio Kikuchi and Daisuke Koyama
- Journal Title
  
  JSIAM Letters
  
  Volume: Vol.6(掲載確定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540127
[Journal Article] An a priori error estimate of the Dirichlet-to-Neumann finite element method for multiple scattering problems2014
- Author(s)
  Daisuke Koyama
- Journal Title
  
  Japan Journal of Industrial and Applied Mathematics
  
  Volume: Vol.31 Issue: 1 Pages: 165-192
- DOI
  10.1007/s13160-013-0129-x
- NAID
  210000162843
- ISSN
  0916-7005, 1868-937X
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540127
[Journal Article] 停留した物体による線形水波散乱問題に対するDtN有限要素法の誤差解析2012
- Author(s)
  小山大介，瀬戸秀幸
- Journal Title
  
  日本応用数理学会論文誌
  
  Volume: 22
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540127
[Journal Article] 停留した物体による線形水波散乱問題に対するDtN 有限要素法の誤差解析2012
- Author(s)
  小山大介, 瀬戸秀幸
- Journal Title
  
  日本応用数理学会論文誌
  
  Volume: 22巻 Pages: 341-382
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23540127
[Journal Article] A parallel Schwarz method for multiple scattering problems2011
- Author(s)
  Daisuke Koyama
- Journal Title
  
  DDM in Science and Engineering XIX, Lecture Notes in Computational Science and Engineering
  
  Pages: 351-358
- URL
  http://www.ddm.org/DD19/proceedings/numerik.mi.fu-berlin.de/DDM/DD19/Contributed_Koyama.pdf
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540116
[Journal Article] Well-posedness of the Helmholtz problem with the multiple DtN boundary condition2010
- Author(s)
  Daisuke Koyama
- Journal Title
  
  Adv in Mathematical Sciences and Applications
  
  Volume: 20巻2号 Pages: 349-370
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540116
[Journal Article] Superconvergence of a finite element method for the Webster equation2010
- Author(s)
  Zhi-Guang Xiong, Takashi Kako, Daisuke Koyama
- Journal Title
  
  Numer.Math.J.Chinese Univ
  
  Volume: 32巻2号 Pages: 106-117
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540116
[Journal Article] Well-posedness of the Helmholtz problem with the multiple DtNboundary condition2010
- Author(s)
  Daisuke Koyama
- Journal Title
  
  Adv. in Mathematical Sciences and Applications
  
  Volume: Vol.20-2 Pages: 349-370
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540116
[Journal Article] Superconvergence of a finiteelement method for the Webster equation2010
- Author(s)
  Zhi-Guang Xiong, Takashi Kako and Daisuke Koyama
- Journal Title
  
  Numer. Math. J. Chinese Univ
  
  Volume: Vol.32-2 Pages: 106-117
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540116
[Journal Article] A parallel Schwarz method for multiple scattering problems2010
- Author(s)
  Daisuke Koyama
- Journal Title
  
  The proceedings of the 19th International Conference on Domain Decomposition Methods (掲載予定)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540116
[Journal Article] Error estimates of the finite element method for the exterior Helmholtz problem with a modified DtN boundary condition2009
- Author(s)
  Daisuke Koyama
- Journal Title
  
  Journal of Computational and Applied Mathematics 232
  
  Pages: 109-121
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540116
[Journal Article] Error estimates of the finite element method for the exterior Helmholtz problem with a modified DtNboundary condition2009
- Author(s)
  Daisuke Koyama
- Journal Title
  
  Journal of Computational and Applied Mathematics
  
  Volume: Vol.232 Pages: 109-121
- URL
  http://www.sciencedirect.com/science/article/pii/S0377042708005505
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21540116
[Journal Article] Quantum Synchronization Effects in Intrinsic Josephson Junctions2008
- Author(s)
  M. Machida, T. Kano, S. Yamada, M. Okumura, T. Imamura, and T. Koyama
- Journal Title
  
  Physica C Vol.468
  
  Pages: 689-694
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540114
[Journal Article] Error estimates of the finite element method for the exterior Helmholtz problem with a modified DtN boundary condition2008
- Author(s)
  D. Koyama
- Journal Title
  
  J. of Computational and Applied Mathematics (in press)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540114
[Journal Article] Error estimates of the finite element method for the exterior Helmholtz problem with a modified DtN boundary condition, J2008
- Author(s)
  D. Koyama
- Journal Title
  
  of Computational and Applied Mathematics (in press)
- Data Source
  KAKENHI-PROJECT-18540114
[Journal Article] Quantum Synchronization Effects in Intrinsic Josephson Junctions2008
- Author(s)
  M. Machida, T. Kano, S. Yamada, M. Okumura, T. Imamura, and T. Koyama
- Journal Title
  
  Physica C (in press)
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540114
[Journal Article] Error estimates of the DtN finite element method for the exterior Helmholtz problem2007
- Author(s)
  Koyama, D.
- Journal Title
  
  Journal of Computational and Applied Mathematics 200・1
  
  Pages: 21-31
- Data Source
  KAKENHI-PROJECT-18540114
[Journal Article] Error estimates of the DtN finite element method for the exterior Helmholtz problem2007
- Author(s)
  D. Koyama
- Journal Title
  
  Journal of Computational and Applied Mathematics Vol.20
  
  Pages: 21-31
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-18540114
[Journal Article] A mixed type finite element approximation for radiation problems using fictitious domain method2003
- Author(s)
  Nasir, H.M., Kako, T., Koyama, D.
- Journal Title
  
  Journal of Computational and Applied Mathematics Vol.152
  
  Pages: 377-392
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14540106
[Journal Article] Application of a fictitious domain method to 3D Helmholtz problems2003
- Author(s)
  Koyama, D.
- Journal Title
  
  Suui-kaiseki-kenkyu-sho-Kokyuroku Vol.1320
  
  Pages: 37-46
- NAID
  110000167314
- Description
  「研究成果報告書概要(欧文)」より
- Data Source
  KAKENHI-PROJECT-14540106
[Journal Article] Application of a fictitious domain method to 3D Helmholtz problems2003
- Author(s)
  Koyama, D.
- Journal Title
  
  京都大学数理解析研究所講究録 1320
  
  Pages: 37-46
- NAID
  110000167314
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14540106
[Journal Article] A mixed type finite element approximation for radiation problems using fictitious domain method2003
- Author(s)
  NASIR, Haniffa Mohamed, KAKO, Takashi, KOYAMA, Daisuke
- Journal Title
  
  Journal of Computational and Applied Mathematics Vol.152
  
  Pages: 377-392
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14340031
[Journal Article] A mixed type finite element approximation for radiation problems using fictitious domain method2003
- Author(s)
  Nasir, H.M., Kako, T., Koyama, D.
- Journal Title
  
  Journal of Computational and Applied Mathematics 152
  
  Pages: 377-392
- Description
  「研究成果報告書概要(和文)」より
- Data Source
  KAKENHI-PROJECT-14540106
[Presentation] 重調和問題に対する内部ペナルティ法で生ずる行列の条件数の評価2021
- Author(s)
  小山大介
- Organizer
  日本数学会2021 年度秋季総合分科会応用数学分科会
- Data Source
  KAKENHI-PROJECT-19K03630
[Presentation] 平面弾性問題に対するリフティング項付きハイブリッド型DGFEM2014
- Author(s)
  小山大介, 菊地文雄
- Organizer
  第10回日本応用数理学会研究部会連合発表会科学技術計算と数値解析研究部会
- Place of Presentation
  京都大学吉田キャンパス
- Data Source
  KAKENHI-PROJECT-23540127
[Presentation] 平面弾性問題に対するリフティング項付きハイブリッド型DGFEM2014
- Author(s)
  小山大介，菊地文雄
- Organizer
  第10回　日本応用数理学会　研究部会連合発表会科学技術計算と数値解析研究部会
- Place of Presentation
  京都大学吉田キャンパス
- Data Source
  KAKENHI-PROJECT-23540127
[Presentation] An optimized Schwarz method for exterior Helmholtz problems2013
- Author(s)
  Daisuke Koyama
- Organizer
  22nd International Conference on Domain Decomposition Methods (DD22)
- Place of Presentation
  Universita della Svizzera italiana - Lugano, Switzerland
- Data Source
  KAKENHI-PROJECT-23540127
[Presentation] 円外領域におけるHelmholtz問題に対する最適化Schwarz法2013
- Author(s)
  小山大介
- Organizer
  RIMS研究集会「応用数理と計算科学における理論と応用の融合」
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-23540127
[Presentation] Korn's inequality for a hybridized discontinuous Galerkin FEM with lifting operator2013
- Author(s)
  Daisuke Koyama and Fumio Kikuchi
- Organizer
  日本数学会2013年度秋季総合分科会応用数学分科会
- Place of Presentation
  愛媛大学
- Data Source
  KAKENHI-PROJECT-23540127
[Presentation] 円外領域におけるHelmholtz問題に対する最適化Schwarz 法2013
- Author(s)
  小山大介
- Organizer
  RIMS 研究集会「応用数理と計算科学における理論と応用の融合」
- Place of Presentation
  京都大学数理解析研究所
- Data Source
  KAKENHI-PROJECT-23540127
[Presentation] Strong $L^p$ convergence associated with Rellich-type discrete compactness for discontinuous Galerkin FEM2012
- Author(s)
  菊地文雄，小山大介
- Organizer
  日本数学会
- Place of Presentation
  九州大学伊都キャンパス
- Data Source
  KAKENHI-PROJECT-23540127
[Presentation] An optimized Schwarz method for acoustic radiation problems2012
- Author(s)
  小山大介
- Organizer
  日本数学会
- Place of Presentation
  九州大学伊都キャンパス
- Year and Date
  2012-09-21
- Data Source
  KAKENHI-PROJECT-23540127

1. KAKO Takashi (30012488)

# of Collaborated Projects: 8 results

# of Collaborated Products: 5 results
2. USHIJIMA Teruo (10012410)

# of Collaborated Projects: 6 results

# of Collaborated Products: 0 results
3. SUITOU Hiroshi (10302530)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
4. TAKEDA Tatsunoki (60272746)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
5. WATANABE Jiro (90011535)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
6. KATO Toshiyuki (30234793)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
7. IMAMURA Toshiyuki (60361838)

# of Collaborated Projects: 2 results

# of Collaborated Products: 2 results
8. FUKUHARA Makoto (60272754)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
9. OGATA Hidenori (50242037)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. YAMAMOTO Nobito (30210545)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
11. TABATA Masahisa (30093272)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. FUJIMA Shoiti (00209082)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. YOSHIDA Toshinobu (30114341)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
14. ZHANG Shao-liang (20252273)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
15. 海津聡 (80017409)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
16. 大西勇 (30262372)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
17. 田吉隆夫 (60017382)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Koyama Daisuke 小山 大介

KOYAMA Daisuke 小山 大介

小山 大介 コヤマ ダイスケ

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Co-Researchers

Application of interior penalty methods to mixed finite element method using nonconforming elementsPrincipal Investigator

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Study on finite element methods for wave problems in unbounded domains and development of associated FEM softwaresPrincipal Investigator

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[Book] 計算力学理論ハンドブック2010

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[Journal Article] Strong L^p convergence associated with Rellich-type discrete compactness for ciscontinuous Galerkin FEM2014

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[Journal Article] An a priori error estimate of the Dirichlet-to-Neumann finite element method for multiple scattering problems2014

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[Journal Article] 停留した物体による線形水波散乱問題に対するDtN有限要素法の誤差解析2012

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[Journal Article] 停留した物体による線形水波散乱問題に対するDtN 有限要素法の誤差解析2012

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Koyama Daisuke 小山大介

KOYAMA Daisuke 小山大介

小山大介コヤマダイスケ