Abstract
We develop a framework shedding light on common features of coupled variational formulations arising in electromagnetic scattering and acoustics. We show that spurious resonances haunting coupled domain-boundary formulations based on direct boundary integral equations of the first kind originate from the formal structure of their Calderón identities. Using this observation, the kernel of the coupled problem is characterized explicitly, and we show that it completely vanishes under the exterior representation formula.
Award Identifier / Grant number: 200021_184848/1
Funding statement: The work of Erick Schulz was supported by SNF as part of the grant 200021_184848/1.
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Articles in the same Issue
- Frontmatter
- Numerical Analysis & No Regrets. Special Issue Dedicated to the Memory of Francisco Javier Sayas (1968–2019)
- Implicit/Explicit, BEM/FEM Coupled Scheme for Acoustic Waves with the Wave Equation in the Second Order Formulation
- Discontinuous Galerkin Methods with Time-Operators in Their Numerical Traces for Time-Dependent Electromagnetics
- A Discontinuous Galerkin Method for the Stationary Boussinesq System
- Korn’s Inequality and Eigenproblems for the Lamé Operator
- Error Estimates for FE-BE Coupling of Scattering of Waves in the Time Domain
- An Efficient Numerical Method for Time Domain Electromagnetic Wave Propagation in Co-axial Cables
- The Time Domain Linear Sampling Method for Determining the Shape of Multiple Scatterers Using Electromagnetic Waves
- A Boundary Integral Formulation and a Topological Energy-Based Method for an Inverse 3D Multiple Scattering Problem with Sound-Soft, Sound-Hard, Penetrable, and Absorbing Objects
- Afternote to “Coupling at a Distance”: Convergence Analysis and A Priori Error Estimates
- Spurious Resonances in Coupled Domain-Boundary Variational Formulations of Transmission Problems in Electromagnetism and Acoustics
- Spectral, Tensor and Domain Decomposition Methods for Fractional PDEs
Articles in the same Issue
- Frontmatter
- Numerical Analysis & No Regrets. Special Issue Dedicated to the Memory of Francisco Javier Sayas (1968–2019)
- Implicit/Explicit, BEM/FEM Coupled Scheme for Acoustic Waves with the Wave Equation in the Second Order Formulation
- Discontinuous Galerkin Methods with Time-Operators in Their Numerical Traces for Time-Dependent Electromagnetics
- A Discontinuous Galerkin Method for the Stationary Boussinesq System
- Korn’s Inequality and Eigenproblems for the Lamé Operator
- Error Estimates for FE-BE Coupling of Scattering of Waves in the Time Domain
- An Efficient Numerical Method for Time Domain Electromagnetic Wave Propagation in Co-axial Cables
- The Time Domain Linear Sampling Method for Determining the Shape of Multiple Scatterers Using Electromagnetic Waves
- A Boundary Integral Formulation and a Topological Energy-Based Method for an Inverse 3D Multiple Scattering Problem with Sound-Soft, Sound-Hard, Penetrable, and Absorbing Objects
- Afternote to “Coupling at a Distance”: Convergence Analysis and A Priori Error Estimates
- Spurious Resonances in Coupled Domain-Boundary Variational Formulations of Transmission Problems in Electromagnetism and Acoustics
- Spectral, Tensor and Domain Decomposition Methods for Fractional PDEs