Yuka Yanagisawa


  • 13 Citations
  • 3 h-Index
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Factorization Engineering & Materials Science
Rounding error Mathematics
Condition number Mathematics
Error Analysis Mathematics
QR Algorithm Mathematics
Cholesky Mathematics
Cholesky factorisation Mathematics
Orthogonality Mathematics

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Research Output 2014 2015

  • 13 Citations
  • 3 h-Index
  • 2 Article
  • 1 Conference contribution

Roundoff error analysis of the Cholesky QR2 algorithm

Yamamoto, Y., Nakatsukasa, Y., Yanagisawa, Y. & Fukaya, T., 2015, In : Electronic Transactions on Numerical Analysis. 44, p. 306-326 21 p.

Research output: Contribution to journalArticle

QR Algorithm
Rounding error
Condition number
5 Citations (Scopus)

CholeskyQR2: A Simple and Communication-Avoiding Algorithm for Computing a Tall-Skinny QR Factorization on a Large-Scale Parallel System

Fukaya, T., Nakatsukasa, Y., Yanagisawa, Y. & Yamamoto, Y., 2014, Proceedings of ScalA 2014: 5th Workshop on Latest Advances in Scalable Algorithms for Large-Scale Systems - held in conjunction with SC 2014: The International Conference for High Performance Computing, Networking, Storage and Analysis. Institute of Electrical and Electronics Engineers Inc., p. 31-38 8 p. 7016731

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Convergence analysis of an algorithm for accurate inverse Cholesky factorization

Yanagisawa, Y., Ogita, T. & Oishi, S., 2014 Nov 1, In : Japan Journal of Industrial and Applied Mathematics. 31, 3, p. 461-482 22 p.

Research output: Contribution to journalArticle

Cholesky factorisation
Convergence Analysis
Matrix Factorization
Inverse matrix