dc.date.accessioned | 2023-04-14T15:39:01Z | |
dc.date.available | 2023-04-14T15:39:01Z | |
dc.date.created | 2023-03-27T11:08:02Z | |
dc.date.issued | 2023 | |
dc.identifier.citation | Csirik, Mihaly Andras Laestadius, Andre . Coupled-Cluster theory revisited Part II: Analysis of the single-reference Coupled-Cluster equations. ESAIM: Mathematical Modelling and Numerical Analysis (ESAIM: M2AN). 2023, 57(2), 545-583 | |
dc.identifier.uri | http://hdl.handle.net/10852/101903 | |
dc.description.abstract | In a series of two articles, we propose a comprehensive mathematical framework for Coupled-Cluster-type methods. In this second part, we analyze the nonlinear equations of the single-reference Coupled-Cluster method using topological degree theory. We establish existence results and qualitative information about the solutions of these equations that also sheds light of the numerically observed behavior. In particular, we compute the topological index of the zeros of the single-reference Coupled-Cluster mapping. For the truncated Coupled-Cluster method, we derive an energy error bound for approximate eigenstates of the Schrödinger equation. | |
dc.language | EN | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Coupled-Cluster theory revisited Part II: Analysis of the single-reference Coupled-Cluster equations | |
dc.title.alternative | ENEngelskEnglishCoupled-Cluster theory revisited Part II: Analysis of the single-reference Coupled-Cluster equations | |
dc.type | Journal article | |
dc.creator.author | Csirik, Mihaly Andras | |
dc.creator.author | Laestadius, Andre | |
cristin.unitcode | 185,15,12,70 | |
cristin.unitname | Hylleraas-senteret | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.fulltext | postprint | |
dc.identifier.cristin | 2137122 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=ESAIM: Mathematical Modelling and Numerical Analysis (ESAIM: M2AN)&rft.volume=57&rft.spage=545&rft.date=2023 | |
dc.identifier.jtitle | ESAIM: Mathematical Modelling and Numerical Analysis (ESAIM: M2AN) | |
dc.identifier.volume | 57 | |
dc.identifier.issue | 2 | |
dc.identifier.startpage | 545 | |
dc.identifier.endpage | 583 | |
dc.identifier.doi | https://doi.org/10.1051/m2an/2022099 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2822-7840 | |
dc.type.version | PublishedVersion | |
dc.relation.project | NFR/287906 | |
dc.relation.project | NFR/262695 | |