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Simul."],"published-print":{"date-parts":[[2025,3,31]]},"abstract":"<jats:p>Abstract.<\/jats:p>\n                  <jats:p>This work is concerned with kinetic equations with velocity of constant magnitude. We propose a quadrature method of moments based on the Poisson kernel, called Poisson-EQMOM. The derived moment closure systems are well defined for all physically relevant moments, and the resultant approximations of the distribution function converge as the number of moments goes to infinity. The convergence makes our method stand out from most existing moment methods. Moreover, we devise a delicate moment inversion algorithm. As an application, the Vicsek model is studied for overdamped active particles, and the Poisson-EQMOM is validated with a series of numerical tests including spatially homogeneous, one-dimensional, and two-dimensional problems.<\/jats:p>","DOI":"10.1137\/23m1620181","type":"journal-article","created":{"date-parts":[[2025,2,24]],"date-time":"2025-02-24T04:00:32Z","timestamp":1740369632000},"page":"577-610","source":"Crossref","is-referenced-by-count":1,"title":["Poisson Quadrature Method of Moments for 2D Kinetic Equations with Velocity of Constant Magnitude"],"prefix":"10.1137","volume":"23","author":[{"given":"Yihong","family":"Chen","sequence":"first","affiliation":[{"name":"Department of Mathematical Sciences, Tsinghua University, Beijing, 100084 China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2770-1352","authenticated-orcid":true,"given":"Qian","family":"Huang","sequence":"additional","affiliation":[{"name":"Corresponding author. Department of Energy and Power Engineering, Tsinghua University, Beijing, 100084 China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4440-128X","authenticated-orcid":true,"given":"Wen-An","family":"Yong","sequence":"additional","affiliation":[{"name":"Department of Mathematical Sciences, Tsinghua University, Beijing, 100084 China, and Beijing Institute of Mathematical Sciences and Applications, Beijing, 101408 China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruixi","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Energy and Power Engineering, Tsinghua University, Beijing, 100084 China."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"351","published-online":{"date-parts":[[2025,2,24]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1137\/18M1181201"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.3934\/krm.2016.9.237"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevE.74.022101"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-030-20297-2_1"},{"key":"ref5","unstructured":"T. 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