{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T23:36:24Z","timestamp":1770334584835,"version":"3.49.0"},"reference-count":37,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2014,5,15]],"date-time":"2014-05-15T00:00:00Z","timestamp":1400112000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Scalar mobility counting rules and their symmetry extensions are reviewed for finite frameworks and also for infinite periodic frameworks of the bar-and-joint, body-joint and body-bar types. A recently published symmetry criterion for the existence of equiauxetic character of an infinite framework is applied to two long known but apparently little studied hinged-hexagon frameworks, and is shown to detect auxetic behaviour in both. In contrast, for double-link frameworks based on triangular and square tessellations, other affine deformations can mix with the isotropic expansion mode.<\/jats:p>","DOI":"10.3390\/sym6020368","type":"journal-article","created":{"date-parts":[[2014,5,15]],"date-time":"2014-05-15T11:05:15Z","timestamp":1400151915000},"page":"368-382","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Symmetry Perspectives on Some Auxetic Body-Bar Frameworks"],"prefix":"10.3390","volume":"6","author":[{"given":"Patrick","family":"Fowler","sequence":"first","affiliation":[{"name":"Department of Chemistry, University of Sheffield, Sheffield S3 7HF, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simon","family":"Guest","sequence":"additional","affiliation":[{"name":"Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tibor","family":"Tarnai","sequence":"additional","affiliation":[{"name":"Department of Structural Mechanics, Budapest University of Technology and Economics, M\u0171egyetem rkp. 3, Budapest H-1521, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2014,5,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"294","DOI":"10.1080\/14786446408643668","article-title":"On the calculation of the equilibrium and stiffness of frames","volume":"27","author":"Maxwell","year":"1864","journal-title":"Philos. 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