Ragnar Sigurðsson

52 total papers · 481 total citations
20 papers, 214 citations indexed

About

Ragnar Sigurðsson is a scholar working on Geometry and Topology, Applied Mathematics and Mathematical Physics. According to data from OpenAlex, Ragnar Sigurðsson has authored 20 papers receiving a total of 214 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Geometry and Topology, 17 papers in Applied Mathematics and 2 papers in Mathematical Physics. Recurrent topics in Ragnar Sigurðsson's work include Holomorphic and Operator Theory (14 papers), Geometry and complex manifolds (12 papers) and Analytic and geometric function theory (7 papers). Ragnar Sigurðsson is often cited by papers focused on Holomorphic and Operator Theory (14 papers), Geometry and complex manifolds (12 papers) and Analytic and geometric function theory (7 papers). Ragnar Sigurðsson collaborates with scholars based in Iceland, Norway and Sweden. Ragnar Sigurðsson's co-authors include Finnur Lárusson, Mikael Passare, Mats Andersson, Alexander Rashkovskii, Evgeny A. Poletsky, Sigmundur Gudmundsson, Lars Hörmander, Christer O. Kiselman, Pavel Kurasov and Mats R. Andersson and has published in prestigious journals such as Transactions of the American Mathematical Society, Mathematische Annalen and Indiana University Mathematics Journal.

In The Last Decade

Ragnar Sigurðsson

20 papers receiving 169 citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
Ragnar Sigurðsson	195	154	41	12	9	20	214
S. Ivashkovich	181 0.9×	216 1.4×	54 1.3×	6 0.5×	6 0.7×	26	238
Jan Wiegerinck	198 1.0×	112 0.7×	58 1.4×	12 1.0×	11 1.2×	22	211
Hajime Tsuji	176 0.9×	240 1.6×	70 1.7×	6 0.5×	7 0.8×	27	293
Alan Michael Nadel	188 1.0×	289 1.9×	102 2.5×	14 1.2×	27 3.0×	12	289
Daniele Angella	84 0.4×	136 0.9×	79 1.9×	6 0.5×	9 1.0×	25	142
Fusheng Deng	128 0.7×	130 0.8×	34 0.8×	4 0.3×	3 0.3×	24	164
Finnur Lárusson	142 0.7×	156 1.0×	53 1.3×	6 0.5×	6 0.7×	34	178
Alexander Rashkovskii	174 0.9×	168 1.1×	51 1.2×	11 0.9×	7 0.8×	36	204
Harold Blum	89 0.5×	143 0.9×	49 1.2×	3 0.3×	7 0.8×	17	177
Sergei Buyalo	125 0.6×	215 1.4×	142 3.5×	34 2.8×	5 0.6×	27	247

Countries citing papers authored by Ragnar Sigurðsson

Since Specialization

Citations

This map shows the geographic impact of Ragnar Sigurðsson's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ragnar Sigurðsson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ragnar Sigurðsson more than expected).

Fields of papers citing papers by Ragnar Sigurðsson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ragnar Sigurðsson. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ragnar Sigurðsson. The network helps show where Ragnar Sigurðsson may publish in the future.

Co-authorship network of co-authors of Ragnar Sigurðsson

This figure shows the co-authorship network connecting the top 25 collaborators of Ragnar Sigurðsson. A scholar is included among the top collaborators of Ragnar Sigurðsson based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ragnar Sigurðsson. Ragnar Sigurðsson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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