Ogita Takeshi

オギタタケシ | Ogita Takeshi

Affiliation and department：
Job title： Professor
Homepage URL (2)： https://ogilab.w.waseda.jp/ogita/math/ , https://ogilab.w.waseda.jp/ogita/

Research field (1)： Computational science

Research keywords (3)：高精度計算 , 精度保証付き数値計算 , 数値線形代数

Research theme for competitive and other funds (18)：

2025 - 2030 Establishment of Computational Methods for Ultra-Large-Scale Matrix Functions
2023 - 2026 数値線形代数の数値解に対する厳密精度評価の基盤形成
2022 - 2025 Fast and accurate eigenvalue calculations by hierarchical low-rank approximation and its application to large-scale electronic structure calculations
2022 - 2025 Fast and accurate eigenvalue calculations by hierarchical low-rank approximation and its application to large-scale electronic structure calculations
2021 - 2025 Computer-assisted solution verification for 3D flows with large Reynolds numbers

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Papers (52)：

Katsuhisa Ozaki, Daichi Mukunoki, Takeshi Ogita. Extension of accurate numerical algorithms for matrix multiplication based on error-free transformation. Japan Journal of Industrial and Applied Mathematics. 2024
Daichi Mukunoki, Katsuhisa Ozaki, Takeshi Ogita, Toshiyuki Imamura. Infinite-Precision Inner Product and Sparse Matrix-Vector Multiplication Using Ozaki Scheme with Dot2 on Manycore Processors. Parallel Processing and Applied Mathematics. 2023. 40-54
Katsuhisa Ozaki, Takeshi Ogita. Generation of test matrices with specified eigenvalues using floating-point arithmetic. NUMERICAL ALGORITHMS. 2022. 90. 1. 241-262
Daichi Mukunoki, Katsuhisa Ozaki, Takeshi Ogita, Toshiyuki Imamura. Accurate Matrix Multiplication on Binary128 Format Accelerated by Ozaki Scheme. ACM International Conference Proceeding Series. 2021
Katsuhisa Ozaki, Takeshi Terao, Takeshi Ogita, Takahiro Katagiri. Verified Numerical Computations for Large-Scale Linear Systems. APPLICATIONS OF MATHEMATICS. 2021. 66. 2. 269-285

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MISC (56)：

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Books (1)：

Education (1)：

Professional career (1)：

Work history (8)：

2023/04 - 現在 Waseda University Department of Applied Mathematics, Faculty of Science and Engineering Professor
2018/04 - 2023/03 Tokyo Woman's Christian University Division of Mathematical Sciences, School of Arts and Sciences
2010/04 - Tokyo Woman's Christian University School of Arts and Sciences, Division of Mathematical Sciences
2009/04 - Tokyo Woman's Christian University School of Arts and Sciences, Division of Mathematical Sciences
2008/04 - Tokyo Woman's Christian University Department of Mathematics, College of Arts and Sciences

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Committee career (5)：

Awards (2)：

Association Membership(s) (2)：

日本応用数理学会 , SIAM

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