{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T18:42:31Z","timestamp":1783104151111,"version":"3.54.6"},"reference-count":14,"publisher":"American Mathematical Society (AMS)","issue":"273","license":[{"start":{"date-parts":[[2011,6,28]],"date-time":"2011-06-28T00:00:00Z","timestamp":1309219200000},"content-version":"am","delay-in-days":365,"URL":"https:\/\/www.ams.org\/publications\/copyright-and-permissions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Math. Comp."],"abstract":"<p>Local energy error estimates for the finite element method for elliptic problems were originally proved in 1974 by Nitsche and Schatz. These estimates show that the local energy error may be bounded by a local approximation term, plus a global \u201cpollution\u201d term that measures the influence of solution quality from outside the domain of interest and is heuristically of higher order. However, the original analysis of Nitsche and Schatz is restricted to quasi-uniform grids. We present local a priori energy estimates that are valid on shape regular grids, an assumption which allows for highly graded meshes and which matches much more closely the typical practical situation. Our chief technical innovation is an improved superapproximation result.<\/p>","DOI":"10.1090\/s0025-5718-2010-02353-1","type":"journal-article","created":{"date-parts":[[2010,10,4]],"date-time":"2010-10-04T11:01:54Z","timestamp":1286190114000},"page":"1-9","source":"Crossref","is-referenced-by-count":46,"title":["Local energy estimates for the finite element method on sharply varying grids"],"prefix":"10.1090","volume":"80","author":[{"given":"Alan","family":"Demlow","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Johnny","family":"Guzm\u00e1n","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alfred","family":"Schatz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"14","published-online":{"date-parts":[[2010,6,28]]},"reference":[{"issue":"3","key":"1","doi-asserted-by":"publisher","first-page":"367","DOI":"10.1051\/m2an\/1995290303671","article-title":"Local error estimates for finite element discretizations of the Stokes equations","volume":"29","author":"Arnold, Douglas N.","year":"1995","journal-title":"RAIRO Mod\\'{e}l. 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