Tetsuya Sakurai
University of Tsukuba
222 Papers
551 Citations
Tetsuya Sakurai is an academic researcher from University of Tsukuba. The author has contributed to research in topics: Eigenvalues and eigenvectors & Computer science. The author has an hindex of 23, co-authored 175 publications. Previous affiliations of Tetsuya Sakurai include Nagoya University & National Institute of Advanced Industrial Science and Technology.
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Papers
A projection method for generalized eigenvalue problems using numerical integration
Tetsuya Sakurai,Hiroshi Sugiura +1 more
TL;DR: In this article, a method for finding certain eigenvalues of a generalized eigenvalue problem that lie in a given domain of the complex plane is proposed, which projects the matrix pencil onto a subspace associated with the eigen values that are located in the domain via numerical integration.
402
A numerical method for nonlinear eigenvalue problems using contour integrals
TL;DR: A contour integral method is proposed to solve nonlinear eigenvalue problems numerically by reducing the original problem to a linear eigen value problem that has identical eigenvalues in the domain.
213
A filter diagonalization for generalized eigenvalue problems based on the Sakurai-Sugiura projection method
TL;DR: The Sakurai-Sugiura projection method, which solves generalized eigenvalue problems to find certain eigenvalues in a given domain, was reformulated by using the resolvent theory.
159
CIRR: a Rayleigh-Ritz type method with contour integral for generalized eigenvalue problems
Tetsuya Sakurai,Hiroto Tadano +1 more
TL;DR: In this paper, a Rayleigh-Ritz type eigensolver for finding a limited set of eigenvalues and their corresponding eigenvectors in a certain region of generalized eigen-value problems is considered.
Intention-based walking support for paraplegia patient
Kenji Suzuki,Y. Kawamura,T. Hayashi,Tetsuya Sakurai,Yasuhisa Hasegawa,Yoshiyuki Sankai +5 more
- 10 Oct 2005
TL;DR: An algorithm to estimate human intentions during walking, embedded into a walking support system, a wearable robot "Robot Suit HAL-3", for paraplegia patients, shows it supports patients' walk comfortably, estimating patient intentions.