First-kind boundary integral equations for the Dirac operator in 3-dimensional Lipschitz domains

E Schulz, R Hiptmair - SIAM Journal on Mathematical Analysis, 2022 - SIAM
We develop novel first-kind boundary integral equations for Euclidean Dirac operators in 3-
dimensional Lipschitz domains comprising square-integrable potentials and involving only …

[HTML][HTML] On the spurious resonance modes of time domain integral equations for analyzing acoustic scattering from penetrable objects

R Chen, Y Shi, SB Sayed, M Lu, H Bagci - The Journal of the …, 2022 - pubs.aip.org
The interior resonance problem of time domain integral equations (TDIEs) formulated to
analyze acoustic field interactions on penetrable objects is investigated. Two types of TDIEs …

[HTML][HTML] Coupled domain-boundary variational formulations for Hodge–Helmholtz operators

E Schulz, R Hiptmair - Integral Equations and Operator Theory, 2022 - Springer
We couple the mixed variational problem for the generalized Hodge–Helmholtz or Hodge–
Laplace equation posed on a bounded 3D Lipschitz domain with the first-kind boundary …

[HTML][HTML] Numerical analysis & no regrets. Special issue dedicated to the memory of Francisco Javier Sayas (1968–2019)

GN Gatica, N Heuer, S Meddahi - Computational Methods in Applied …, 2022 - degruyter.com
This is the preface of a special issue dedicated to the memory of Francisco Javier Sayas
who passed away on April 2, 2019. The articles reflect Sayas' main research interests in the …

Boundary Integral Exterior Calculus

E Schulz - 2022 - research-collection.ethz.ch
In this thesis, we ultimately develop first-kind boundary integral equations for boundary
value problems involving the Hodge--Dirac and Hodge--Laplace operators associated with …

[PDF][PDF] On the Spurious Interior Resonance Modes of Time Domain Integral Equations for Analyzing Acoustic Scattering from Penetrable Objects

R Chen, Y Shi, SB Sayed, M Lu, H Bagci - repository.kaust.edu.sa
The interior resonance problem of time domain integral equations (TDIEs) formulated to
analyze acoustic field interactions on penetrable objects is investigated. Two types of TDIEs …