177 citations
- Centro de Estudios CientíficosCL9 papers
- Waseda UniversityJP9 papers
- RIKENJP8 papers
- Rikkyo UniversityJP8 papers
- The University of TokyoJP8 papers
- The University of OsakaJP7 papers
- Tohoku UniversityJP7 papers
- Kyoto UniversityJP4 papers
- National Astronomical Observatory of JapanJP4 papers
- Boston UniversityUS3 papers
- Hiroshima UniversityJP3 papers
- Institut d'Astrophysique de ParisFR3 papers
62 papers
Novel computational workflows for natural and biomedical image processing based on hypercomplex algebras
Nektarios A. Valous, Eckhard Hitzer, Dragoş Duşe +12
Hypercomplex image processing extends conventional techniques in a unified paradigm encompassing algebraic and geometric principles. This work leverages quaternions and the two-dim…
Quantum Monte Carlo study of superfluid density in quasi-one-dimensional hard-core bosons: Effect of suppression of phase slippage
A. Masaki-Kato, S. Yunoki, D. S. Hirashima
We study the superfluid density of hard-core bosons on quasi-one-dimensional lattices using the quantum Monte Carlo method. Because of phase slippage, the superfluid density drops…
Fat Tails in Financial Return Distributions Revisited: Evidence from the Korean Stock Market
Cheoljun Eom, Taisei Kaizoji, Enrico Scalas
This study empirically re-examines fat tails in stock return distributions by applying statistical methods to an extensive dataset taken from the Korean stock market. The tails of…
Stochastic Chemical Evolution of Galactic Subhalos and the Origin of r-Process Elements
Takuya Ojima, Yuhri Ishimaru, Shinya Wanajo +2
Mergers of compact binaries (of a neutron star and another neutron star or a black hole, NSMs) are suggested to be the promising astrophysical site of the r-process. While the aver…
Enrichment of Zinc in galactic chemodynamical evolution models
Yutaka Hirai, Takayuki R. Saitoh, Yuhri Ishimaru +1
The heaviest iron-peak element, Zn has been used as an important tracer of cosmic chemical evolution. Spectroscopic observations of the metal-poor stars in Local Group galaxies sho…
Diversity of Abundance Patterns of Light Neutron-capture Elements in Very-metal-poor Stars
Misa Aoki, Yuhri Ishimaru, Wako Aoki +1
We determine the abundances of neutron-capture elements from Sr to Eu for five very-metal-poor stars (-3<[Fe/H]<-2) in the Milky Way halo to reveal the origin of light neutron-capt…