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math.NA2025
Complex Scaling for the Junction of Semi-infinite Gratings
Fruzsina J. Agocs, Tristan Goodwill, Jeremy Hoskins
We present and analyze an integral equation method for the scattering of a non-periodic source from a geometry consisting of two semi-infinite, periodic structures glued together i…
math.NA2023
Trapped acoustic waves and raindrops: high-order accurate integral equation method for localized excitation of a periodic staircase
Fruzsina J. Agocs, Alex H. Barnett
We present a high-order boundary integral equation (BIE) method for the frequency-domain acoustic scattering of a point source by a singly-periodic, infinite, corrugated boundary.…
math.NA2022★ 1 cited
An adaptive spectral method for oscillatory second-order linear ODEs with frequency-independent cost
Fruzsina J. Agocs, Alex H. Barnett
We introduce an efficient numerical method for second order linear ODEs whose solution may vary between highly oscillatory and slowly changing over the solution interval. In oscill…