Updated on 2024/08/09

Information

 

写真a

 
TERAO TAKESHI
 
Organization
Research Institute for Information Technology Academic Researcher
Title
Academic Researcher
External link

Research Interests・Research Keywords

  • Research theme： Reliable computing for numerical linear algebra

    Keyword： Numerical linear algebra, Mixed-precision computation, Verified numerical computation, Error analysis

    Research period： 2023.12

Presentations

  • Iterative refinement for an eigenpair subset of real symmetric matrices International conference

    @Takeshi Terao, Toshiyuki Imamura, Katsuhisa Ozaki

    10th International Congress on Industrial and Applied Mathematics  2023.8 

    　More details

    Event date： 2023.8

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

    Numerical computation for eigenvalue decomposition plays a crucial role in many scientific fields, and highly accurate eigenpairs are required in certain domains. A novel method was proposed in this study for the iterative refinement of the eigenpair of a real symmetric matrix, which is based on the Ogita-Aishima method and uses compact WY representation. The proposed method can refine the accuracy of a partial eigenpair without using a full eigenvector matrix.