78 citations
- Kyoto UniversityJP4 papers
- Ryukoku UniversityJP3 papers
- Osaka City UniversityJP2 papers
- University of SouthamptonGB2 papers
- California Institute of TechnologyUS1 paper
- Instituto de Física TeóricaES1 paper
- Kanazawa Medical CenterJP1 paper
- Kanazawa Medical UniversityJP1 paper
- Kanazawa UniversityJP1 paper
- Max Planck Institute for Gravitational PhysicsDE1 paper
- National University of SingaporeSG1 paper
- Universidade Federal do Rio Grande do NorteBR1 paper
7 papers
Secular evolution of orbital parameters for general bound orbits in Kerr spacetime
Norichika Sago, Ryuichi Fujita, Soichiro Isoyama +1
We analytically derive the secular changes of the orbital parameters, i.e., energy, angular momentum, and Carter constant, for general bound orbits in Kerr spacetime, at leading or…
Acceleration of multi-component multiple-precision arithmetic with branch-free algorithms and SIMD vectorization
Tomonori Kouya
Multiple-precision floating-point branch-free algorithms can significantly accelerate multi-component arithmetic implemented by combining hardware-based binary64 and binary32, part…
Assessing the Performance of Mixed-Precision ILU(0)-Preconditioned Multiple-Precision Real and Complex Krylov Subspace Methods
Tomonori Kouya
Krylov subspace methods are linear solvers based on matrix-vector multiplications and vector operations. While easily parallelizable, they are sensitive to rounding errors and may…
Exploring Engagement and Perceived Learning Outcomes in an Immersive Flipped Learning Context
Mehrasa Alizadeh
The flipped classroom model has been widely acknowledged as a practical pedagogical approach to enhancing student engagement and learning. However, it faces challenges such as impr…
Adiabatic waveforms from extreme-mass-ratio inspirals: an analytical approach
Soichiro Isoyama, Ryuichi Fujita, Alvin J. K. Chua +3
Scientific analysis for the gravitational-wave detector LISA will require theoretical waveforms from extreme-mass-ratio inspirals (EMRIs) that extensively cover all possible orbita…
Scope out multiband gravitational-wave observations of GW190521-like binary black holes with space gravitational wave antenna B-DECIGO
Hiroyuki Nakano, Ryuichi Fujita, Soichiro Isoyama +1
The gravitational wave event, GW190521 is the most massive binary black hole merger observed by ground-based gravitational wave observatories LIGO/Virgo to date. While the observed…