{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:55:46Z","timestamp":1760151346451,"version":"build-2065373602"},"reference-count":34,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2022,3,9]],"date-time":"2022-03-09T00:00:00Z","timestamp":1646784000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Homotopy coherence has a considerable history, albeit also by other names. For this volume highlighting symmetries, the appropriate use is homotopy coherence of representations, at one time known as representations up to homotopy\/homotopy coherent representations. We present a brief semi-historical survey, providing some links that may not be common knowledge.<\/jats:p>","DOI":"10.3390\/sym14030553","type":"journal-article","created":{"date-parts":[[2022,3,10]],"date-time":"2022-03-10T02:10:35Z","timestamp":1646878235000},"page":"553","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Homotopy Coherent Representations"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7962-8471","authenticated-orcid":false,"given":"Tim","family":"Porter","sequence":"first","affiliation":[{"name":"Ynys M\u00f4n\/Anglesey, LL57, Cymru\/Wales, ex-University of Bangor, Maths."}]},{"given":"Jim","family":"Stasheff","sequence":"additional","affiliation":[{"name":"Mathematics Department, University of Pennsylvania, Philadelphia, PA 19104-6395, USA"}]}],"member":"1968","published-online":{"date-parts":[[2022,3,9]]},"reference":[{"key":"ref_1","first-page":"123","article-title":"On a condition that a space is group-like","volume":"7","author":"Sugawara","year":"1957","journal-title":"Math. 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