Presentations
ISAKARI Hiroshi
1-20 items (total 48)
2026.06
High-order frequency derivatives of Helmholtz BIE solutions: fast computation and applications
- Speaker
- Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title The 17th International Conference on Mathematical and Numerical Aspects of Wave Propagation (WAVES2026) Dates 2026.06.22 - 2026.06.26
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
2025.11
Efficient preconditioning techniques for the boundary element method with the Burton--Miller method in transmission problems
- Speaker
- Keigo Tomoyasu, Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title 47th PhotonIcs and Electromagnetics Research Symposium (PIERS2025) Dates 2025.11.05 - 2025.11.09
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
2025.11
Estimating resonant frequency in open system via Padé-approximated resolvent
- Speaker
- Kohei Okuda, Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title 47th PhotonIcs and Electromagnetics Research Symposium (PIERS2025) Dates 2025.11.05 - 2025.11.09
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
Omnidirectional acoustic cloaking for arbitrary materials and shapes
- Speaker
- Akihiro Yoshiki, Kei Matsushima, Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title 16th World Congress on Structural and Multidisciplinary Optimization Dates 2025.05.18 - 2025.05.23
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
Performance evaluation of the Calderon preconditioning for the Burton–Miller boundary element method in three-dimensional transmission problems
- Speaker
- Keigo Tomoyasu, Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title Symposium of the International Association for Boundary Element Methods (IABEM2024) Dates 2024.12.04 - 2024.12.06
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
Structural optimisation for acoustic cavity problems in half space using a hybrid boundary integral representation
- Speaker
- Riku Toshimitsu, Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title Symposium of the International Association for Boundary Element Methods (IABEM2024) Dates 2024.12.04 - 2024.12.06
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
On a topological derivative related to scattered fields by a periodic structure
- Speaker
- Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title 4th International Workshops on Advances in Computational Mechanics (IWACOM-IV) Dates 2024.09.18 - 2024.09.20
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
On a boundary integral expression for the topological perturbation of the scattering eigenfrequency
- Speaker
- Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title 16th International Conference on Mathematical and Numerical Aspects of Wave Propagation Dates 2024.06.30 - 2024.07.05
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
Towards a topology optimisation of wave devices with wide working bandwidth
- Speaker
- Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title 2024 Japan-Taiwan Joint Workshop on Numerical Analysis and Inverse Problems Dates 2024.03.09 - 2024.03.10
- Invitation Status
- With
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (invited, special)
A boundary element method for evaluating high-order frequency derivatives of acoustic wave scattering by periodic structures
- Speaker
- Yuta Honshuku, Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title 15th World Congress on Computational Mechanics (WCCM-XV) and 8th Asian Pacific Congress on Computational Mechanics (APCOM-VIII) Dates 2022.07.31 - 2022.08.05
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
Topology optimization based on level set method of heat conduction for the heat radiation boundary condition
- Speaker
- Shinsei Sato, Toru Takahashi, Hiroshi Isakari, Toshiro Matsumoto
- Conference Title
- [Conference Category International presentation] Conference Title 15th World Congress on Computational Mechanics (WCCM-XV) and 8th Asian Pacific Congress on Computational Mechanics (APCOM-VIII) Dates 2022.07.31 - 2022.08.05
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
A convolutional neural network for predicting the eigenvalues of the 2D Helmholtz equation
- Speaker
- Daiki Ishida, Toru Takahashi, Yi Cui, Hiroshi Isakari, Toshiro Matsumoto
- Conference Title
- [Conference Category International presentation] Conference Title 15th World Congress on Computational Mechanics (WCCM-XV) and 8th Asian Pacific Congress on Computational Mechanics (APCOM-VIII) Dates 2022.07.31 - 2022.08.05
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
Boundary element method for frequency-differentiated Helmholtz' equation and its applications
- Speaker
- Hiroshi Isakari
- Conference Title
- [Conference Category International presentation] Conference Title IUTAM symposium on Computational methods for large-scale and complex wave problems Dates 2021.06.25 - 2021.07.03
- Invitation Status
- With
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (invited, special)
A topology optimisation in large-scale multi-particle systems based on the scattering matrix method
- Speaker
- Kei Matsushima, Hiroshi Isakari, Toru Takahashi, Toshiro Matsumoto
- Conference Title
- [Conference Category International presentation] Conference Title The 14th World Congress of Structural and Multidisciplinary Optimization (WCSMO14) Dates 2021.06.13 - 2021.06.18
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
A robust topology optimisation for acoustic-elastodynamic coupled structures with broad working bandwidth
- Speaker
- Jincheng Qin, Hiroshi Isakari, Toru Takahashi, Toshiro Matsumoto
- Conference Title
- [Conference Category International presentation] Conference Title The 14th World Congress of Structural and Multidisciplinary Optimization (WCSMO14) Dates 2021.06.13 - 2021.06.18
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
BEM-based robust topology optimisation for wideband acoustic devices
- Speaker
- Jincheng Qin, Hiroshi Isakari, Toru Takahashi, Toshiro Matsumoto
- Conference Title
- [Conference Category International presentation] Conference Title The 7th Asia-Pacific Congress on Computational Mechanics (APCOM2019) Dates 2019.12.18 - 2019.12.20
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
A topology optimisation using level-sets of parametric surface
- Speaker
- Yuki Nagai, Hiroshi Isakari, Toru Takahashi, Toshiro Matsumoto
- Conference Title
- [Conference Category International presentation] Conference Title The 7th Asia-Pacific Congress on Computational Mechanics (APCOM2019) Dates 2019.12.18 - 2019.12.20
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
A multiple scattering analysis based on the scattering matrix and a fast direct BEM
- Speaker
- Kei Matsushima, Hiroshi Isakari, Toru Takahashi, Toshiro Matsumoto
- Conference Title
- [Conference Category International presentation] Conference Title The 7th Asia-Pacific Congress on Computational Mechanics (APCOM2019) Dates 2019.12.18 - 2019.12.20
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
Level-set method with lattice Boltzmann method for topology optimization of unsteady fluid flows
- Speaker
- Truong Nguyen, Toru Takahashi, Hiroshi Isakari, Toshiro Matsumoto
- Conference Title
- [Conference Category International presentation] Conference Title The 6th Asia-Pacific International Conference on Computational Methods in Engineering (ICOME2019) Dates 2019.09.27 - 2019.09.30
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)
A boundary integral formulation for topology optimisation problems with frequency uncertainty
- Speaker
- Jincheng Qin, Hiroshi Isakari, Toru Takahashi, Toshiro Matsumoto
- Conference Title
- [Conference Category International presentation] Conference Title The 6th Asia-Pacific International Conference on Computational Methods in Engineering (ICOME2019) Dates 2019.09.27 - 2019.09.30
- Invitation Status
- Without
- Presentation Format
- International presentation
- Language of Publication
- English
- International Co-authorship
- No
- Conference Category
- Oral presentation (general)