{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,6,24]],"date-time":"2022-06-24T15:13:20Z","timestamp":1656083600112},"reference-count":24,"publisher":"Walter de Gruyter GmbH","issue":"0","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>In this note we consider a parabolic evolution equation in a polygonal space-time cylinder. We show, that the elliptic part is given by a m-accretive mapping from <jats:italic>L<\/jats:italic>\n                  <jats:sup>\n                     <jats:italic>q<\/jats:italic>\n                  <\/jats:sup>(\u03a9) \u2192 <jats:italic>L<\/jats:italic>\n                  <jats:sup>\n                     <jats:italic>q<\/jats:italic>\n                  <\/jats:sup>(\u03a9). Therefore we can apply the theory of nonlinear semigroups in Banach spaces in order to get regularity results in time and space.<\/jats:p>\n               <jats:p>The second part of the paper deals with the numerical solution of the problem. It is dedicated to the application of the space-time discontinuous Galerkin method (STDGM). It means that both in space as well as in time discontinuous piecewise polynomial approximations of the solution are used. We concentrate to the theoretical analysis of the error estimation.<\/jats:p>","DOI":"10.1515\/jnma-2021-0113","type":"journal-article","created":{"date-parts":[[2022,6,24]],"date-time":"2022-06-24T14:44:16Z","timestamp":1656081856000},"source":"Crossref","is-referenced-by-count":0,"title":["Regularity results and numerical solution by the discontinuous Galerkin method to semilinear parabolic initial boundary value problems with nonlinear Newton boundary conditions in a polygonal space-time cylinder"],"prefix":"10.1515","volume":"0","author":[{"given":"Monika","family":"Bal\u00e1zsov\u00e1","sequence":"first","affiliation":[{"name":"Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering , Prague , Czech Republic"}]},{"given":"Miloslav","family":"Feistauer","sequence":"additional","affiliation":[{"name":"Charles University, Faculty of Mathematics and Physics , Prague , Czech Republic"}]},{"given":"Anna-Margarete","family":"S\u00e4ndig","sequence":"additional","affiliation":[{"name":"Universit\u00e4t Stuttgart, IANS , Stuttgart , Germany"}]}],"member":"374","published-online":{"date-parts":[[2022,6,25]]},"reference":[{"key":"2022062414441237418_j_jnma-2021-0113_ref_001","doi-asserted-by":"crossref","unstructured":"M. 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