# Fingerprint Dive into the research topics where Euan Spence is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

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### Mathematics

Helmholtz Equation

Acoustic Scattering

Integral Operator

Boundary Integral

Hermann Von Helmholtz

Coercivity

Boundary Integral Equations

Preconditioning

GMRES

Explicit Bounds

Acoustics

Boundary Value Problem

Domain Decomposition

Preconditioner

Star

Transmission Problem

Oscillatory Integrals

Transform

Harmonic

Scattering Problems

Error Estimates

Galerkin Method

Absorption

Dirichlet Problem

Integral Representation

Integral Equations

Impedance

Polar coordinates

Layer Potentials

Boundary Integral Method

Uniform Asymptotics

Exterior Problem

Heterogeneous Media

Non-normality

A Priori Bounds

Positive Curvature

Laplace

Spectral Decomposition

Operator

Convex polygon

Separation of Variables

Optimality

Iteration

Boundary conditions

Strictly positive

Stationary point

Modified Equations

Approximation Error

Lipschitz

Dirichlet-to-Neumann Map

### Engineering & Materials Science

Helmholtz equation

Acoustics

Scattering

Boundary integral equations

Boundary value problems

Coercive force

Stars

Mathematical operators

Boundary conditions

Integral equations

Galerkin methods

Decomposition

Acoustic impedance

Numerical analysis

Boundary element method

Partial differential equations

Wavelength

Wave propagation

Polynomials

Experiments

Acoustic waves

Green's function

Geometry

Exponential functions

Acoustic wave scattering