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Sci. Comput."],"published-print":{"date-parts":[[2023,8,31]]},"abstract":"<jats:p>Abstract.<\/jats:p>\n                  <jats:p>Based on the perfectly matched layer (PML) technique, this paper develops a highly accurate boundary integral equation (BIE) solver for acoustic scattering problems in locally defected layered media in both two and three dimensions. The original scattering problem is truncated onto a bounded domain by the PML. Assuming the vanishing of the scattered field on the PML boundary, we derive BIEs on local defects only in terms of using PML-transformed free-space Green\u2019s function, and the four standard integral operators: single-layer, double-layer, transpose of double-layer, and hyper-singular boundary integral operators. The hyper-singular integral operator is transformed into a combination of weakly-singular integral operators and tangential derivatives. We develop a high-order Chebyshev-based rectangular-polar singular-integration solver to discretize all weakly singular integrals. Numerical experiments for both two- and three-dimensional problems are carried out to demonstrate the accuracy and efficiency of the proposed solver.<\/jats:p>","DOI":"10.1137\/22m1532457","type":"journal-article","created":{"date-parts":[[2023,7,25]],"date-time":"2023-07-25T11:43:19Z","timestamp":1690285399000},"page":"B523-B543","source":"Crossref","is-referenced-by-count":9,"title":["A Highly Accurate Perfectly-Matched-Layer Boundary Integral Equation Solver for Acoustic Layered-Medium Problems"],"prefix":"10.1137","volume":"45","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2227-702X","authenticated-orcid":true,"given":"Wangtao","family":"Lu","sequence":"first","affiliation":[{"name":"School of Mathematical Sciences, Zhejiang University, Hangzhou, Zhejiang 310027, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5381-337X","authenticated-orcid":true,"given":"Liwei","family":"Xu","sequence":"additional","affiliation":[{"name":"School of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tao","family":"Yin","sequence":"additional","affiliation":[{"name":"LSEC, Institute of Computational Mathematics and Scientific\/Engineering Computing, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lu","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, China."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"351","published-online":{"date-parts":[[2023,7,24]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1137\/S1064827597325141"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1093\/imamat\/hxh065"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1137\/18M1164068"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1137\/110824644"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcp.2017.07.032"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1016\/j.cma.2019.05.027"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcp.2013.12.047"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1002\/nme.4302"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcp.2020.109740"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1109\/TAP.2017.2728118"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1137\/15M1033782"},{"key":"ref12","first-page":"20170161","volume":"473","author":"Bruno O. 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