{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T18:14:38Z","timestamp":1785521678411,"version":"3.56.0"},"reference-count":0,"publisher":"Walter de Gruyter GmbH","issue":"4","funder":[{"name":"DFG Research Center Matheon"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,10,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>This paper analyses an adaptive\nnonconforming finite element method for eigenvalue clusters\nof self-adjoint operators and proves optimal convergence\nrates (with respect to the concept of nonlinear approximation\nclasses) for the approximation of the invariant subspace\nspanned by the eigenfunctions of the eigenvalue cluster.\nApplications include eigenvalues of the Laplacian and of the Stokes system.<\/jats:p>","DOI":"10.1515\/cmam-2014-0020","type":"journal-article","created":{"date-parts":[[2014,7,22]],"date-time":"2014-07-22T20:01:35Z","timestamp":1406059295000},"page":"509-535","source":"Crossref","is-referenced-by-count":14,"title":["Adaptive Nonconforming Finite Element Approximation of Eigenvalue Clusters"],"prefix":"10.1515","volume":"14","author":[{"given":"Dietmar","family":"Gallistl","sequence":"first","affiliation":[{"name":"Institut f\u00fcr Mathematik, Humboldt-Universit\u00e4t zu Berlin, Unter den Linden 6, 10099 Berlin, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"374","published-online":{"date-parts":[[2014,7,18]]},"container-title":["Computational Methods in Applied Mathematics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.degruyter.com\/view\/journals\/cmam\/14\/4\/article-p509.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/cmam-2014-0020\/xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/cmam-2014-0020\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,3,31]],"date-time":"2023-03-31T21:02:44Z","timestamp":1680296564000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.1515\/cmam-2014-0020\/html"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,7,18]]},"references-count":0,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2014,8,20]]},"published-print":{"date-parts":[[2014,10,1]]}},"alternative-id":["10.1515\/cmam-2014-0020"],"URL":"https:\/\/doi.org\/10.1515\/cmam-2014-0020","relation":{},"ISSN":["1609-4840","1609-9389"],"issn-type":[{"value":"1609-4840","type":"print"},{"value":"1609-9389","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,7,18]]}}}