Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Yusaku Yamamoto"'
Publikováno v:
Mathematics, Vol 9, Iss 18, p 2248 (2021)
We aim to accelerate the linear equation solver for crack growth simulation based on the phase field model. As a first step, we analyze the properties of the coefficient matrices and prove that they are symmetric positive definite. This justifies the
Externí odkaz:
https://doaj.org/article/65c11709e00f4ca6954b72c0cd821dd5
Publikováno v:
SIAM Journal on Matrix Analysis and Applications. 43:1238-1262
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51e18798c27372c9f01d3ea42841bd0a
https://doi.org/10.1137/21m1411895
https://doi.org/10.1137/21m1411895
Publikováno v:
JSIAM Letters. 14:147-150
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f1849f8ab9583d653303bf205bd2609
https://doi.org/10.14495/jsiaml.14.147
https://doi.org/10.14495/jsiaml.14.147
Publikováno v:
Parallel Processing and Applied Mathematics ISBN: 9783031304415
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f9d8f0b562997bdc01892a84b9a8291
https://doi.org/10.1007/978-3-031-30442-2_34
https://doi.org/10.1007/978-3-031-30442-2_34
Autor:
Yusaku Yamamoto
Publikováno v:
Special Matrices, Vol 10, Iss 1, Pp 34-39 (2021)
In this short note, we define an s × s matrix Ks constructed from the Hilbert matrix H s = ( 1 i + j - 1 ) i , j = 1 s {H_s} = \left( {{1 \over {i + j - 1}}} \right)_{i,j = 1}^s and prove that it has at least one pair of complex eigenvalues when s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a0d07f2689c8ce685d421f3fd2d5e41
https://doaj.org/article/d47507b6f2ee43c8867df60986b0d346
https://doaj.org/article/d47507b6f2ee43c8867df60986b0d346
Publikováno v:
Linear Algebra and its Applications. 622:19-45
In the block version of the classical two-sided Jacobi method for the Hermitian eigenvalue problem, the off-diagonal elements of iterated matrix A ( k ) converge to zero. However, this fact alone does not necessarily guarantee that A ( k ) converges
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1b8f4c6a6557b60bc06c750b89e859c
https://doi.org/10.1016/j.laa.2021.03.027
https://doi.org/10.1016/j.laa.2021.03.027
Autor:
Kazuto Ide, Hisatsugu Yamasaki, Takeshi Tojigamori, Yusaku Yamamoto, Shintaro Tachibana, Yukinari Kotani, Yuki Orikasa, Hidenori Miki
Publikováno v:
Chemistry Letters. 50:120-123
The mixed-anion fluorosulfide Yb3F4S2 was examined as a solid electrolyte for all-solid-state fluoride-ion batteries. The synthesized Yb3F4S2 compound by solid-state reaction under vacuum contained...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaefe9911f5b61ebf5ca4a58dc3bd3e9
https://doi.org/10.1246/cl.200659
https://doi.org/10.1246/cl.200659
Publikováno v:
JSIAM Letters. 13:56-59
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43be6581eb49cc90fd598a97d2be213e
https://doi.org/10.14495/jsiaml.13.56
https://doi.org/10.14495/jsiaml.13.56
Autor:
Yusaku Yamamoto, Akiko Fukuda, Sonomi Kakizaki, Emiko Ishiwata, Masashi Iwasaki, Yoshimasa Nakamura
Publikováno v:
Mathematical Physics, Analysis and Geometry. 25
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34ac9765b549fb365da4011630fd18c8
https://doi.org/10.1007/s11040-022-09425-6
https://doi.org/10.1007/s11040-022-09425-6
Convergence acceleration of shifted $LR$ transformations for totally nonnegative Hessenberg matrices
Publikováno v:
Applications of Mathematics. 65:677-702
We design shifted LR transformations based on the integrable discrete hungry Toda equation to compute eigenvalues of totally nonnegative matrices of the banded Hessenberg form. The shifted LR transformation can be regarded as an extension of the exte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e82bcde44065befb951d75e97df5dd67
https://doi.org/10.21136/am.2020.0378-19
https://doi.org/10.21136/am.2020.0378-19