Thomas Østergaard Sørensen

444 total citations
17 papers, 237 citations indexed

About

Thomas Østergaard Sørensen is a scholar working on Mathematical Physics, Atomic and Molecular Physics, and Optics and Statistical and Nonlinear Physics. According to data from OpenAlex, Thomas Østergaard Sørensen has authored 17 papers receiving a total of 237 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Mathematical Physics, 9 papers in Atomic and Molecular Physics, and Optics and 8 papers in Statistical and Nonlinear Physics. Recurrent topics in Thomas Østergaard Sørensen's work include Spectral Theory in Mathematical Physics (15 papers), Quantum chaos and dynamical systems (8 papers) and Quantum Mechanics and Non-Hermitian Physics (7 papers). Thomas Østergaard Sørensen is often cited by papers focused on Spectral Theory in Mathematical Physics (15 papers), Quantum chaos and dynamical systems (8 papers) and Quantum Mechanics and Non-Hermitian Physics (7 papers). Thomas Østergaard Sørensen collaborates with scholars based in Denmark, France and Austria. Thomas Østergaard Sørensen's co-authors include M. Hoffmann-Ostenhof, Søren Fournais, Thomas Hoffmann-Ostenhof, Anna Dall’Acqua, Jan Philip Solovej, Mathieu Lewin, Mikael Sjödin, Mohammad Ashjaei, Thomas Nolte and Jacob Schach Møller and has published in prestigious journals such as Communications in Mathematical Physics, Communications on Pure and Applied Mathematics and Communications in Partial Differential Equations.

In The Last Decade

Thomas Østergaard Sørensen

16 papers receiving 222 citations

Peers

Thomas Østergaard Sørensen
W. Bulla Austria
David Borthwick United States
Hassan Azad Saudi Arabia
Geno Nikolov Bulgaria
S. Regina Italy
W. Bulla Austria
Thomas Østergaard Sørensen
Citations per year, relative to Thomas Østergaard Sørensen Thomas Østergaard Sørensen (= 1×) peers W. Bulla

Countries citing papers authored by Thomas Østergaard Sørensen

Since Specialization
Citations

This map shows the geographic impact of Thomas Østergaard Sørensen'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 Thomas Østergaard Sørensen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Thomas Østergaard Sørensen more than expected).

Fields of papers citing papers by Thomas Østergaard Sørensen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Thomas Østergaard Sørensen. 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 Thomas Østergaard Sørensen. The network helps show where Thomas Østergaard Sørensen may publish in the future.

Co-authorship network of co-authors of Thomas Østergaard Sørensen

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas Østergaard Sørensen. A scholar is included among the top collaborators of Thomas Østergaard Sørensen 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 Thomas Østergaard Sørensen. Thomas Østergaard Sørensen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

17 of 17 papers shown
1.
Fournais, Søren & Thomas Østergaard Sørensen. (2021). Estimates on derivatives of Coulombic wave functions and their electron densities. Journal für die reine und angewandte Mathematik (Crelles Journal). 2021(775). 1–38. 6 indexed citations
3.
Fournais, Søren, et al.. (2016). Coulomb potentials and Taylor expansions in time-dependent density-functional theory. Physical review. A. 93(6). 7 indexed citations
4.
Dall’Acqua, Anna, et al.. (2012). Real analyticity away from the nucleus of pseudorelativistic Hartree–Fock orbitals. Analysis & PDE. 5(3). 657–691. 8 indexed citations
5.
Fournais, Søren & Thomas Østergaard Sørensen. (2010). The Electron Densities of Pseudorelativistic Eigenfunctions are Smooth Away from the Nuclei. Communications in Partial Differential Equations. 35(7). 1276–1291. 1 indexed citations
6.
Solovej, Jan Philip, et al.. (2009). Relativistic Scott correction for atoms and molecules. Communications on Pure and Applied Mathematics. 63(1). 39–118. 21 indexed citations
7.
Fournais, Søren, et al.. (2008). Local and global properties of eigenfunctions and one-electron densities of Coulombic Schrodinger operators. AIP conference proceedings. 998. 70–84. 1 indexed citations
8.
Sørensen, Thomas Østergaard, et al.. (2008). On the convergence of eigenfunctions to threshold energy states. Proceedings of the Royal Society of Edinburgh Section A Mathematics. 138(1). 169–187. 2 indexed citations
9.
Dall’Acqua, Anna, et al.. (2008). Hartree–Fock Theory for Pseudorelativistic Atoms. Annales Henri Poincaré. 9(4). 711–742. 25 indexed citations
10.
Fournais, Søren, M. Hoffmann-Ostenhof, Thomas Hoffmann-Ostenhof, & Thomas Østergaard Sørensen. (2008). Analytic Structure of Many-Body Coulombic Wave Functions. Communications in Mathematical Physics. 289(1). 291–310. 31 indexed citations
11.
Fournais, Søren, M. Hoffmann-Ostenhof, Thomas Hoffmann-Ostenhof, & Thomas Østergaard Sørensen. (2007). Positivity of the spherically averaged atomic one-electron density. Mathematische Zeitschrift. 259(1). 123–130. 6 indexed citations
12.
Fournais, Søren, Thomas Østergaard Sørensen, M. Hoffmann-Ostenhof, & Thomas Hoffmann-Ostenhof. (2007). Non-Isotropic Cusp Conditions and Regularity of the Electron Density of Molecules at the Nuclei. Annales Henri Poincaré. 8(4). 731–748. 14 indexed citations
13.
Fournais, Søren, M. Hoffmann-Ostenhof, Thomas Hoffmann-Ostenhof, & Thomas Østergaard Sørensen. (2004). Analyticity of the density of electronic wavefunctions. Arkiv för matematik. 42(1). 87–106. 5 indexed citations
14.
Fournais, Søren, M. Hoffmann-Ostenhof, Thomas Hoffmann-Ostenhof, & Thomas Østergaard Sørensen. (2004). Analyticity of the density of electronic wavefunctions. Arkiv för matematik. 42(1). 87–106. 40 indexed citations
15.
Fournais, Søren, M. Hoffmann-Ostenhof, Thomas Hoffmann-Ostenhof, & Thomas Østergaard Sørensen. (2002). On the regularity of the desity of electronic wavefunctions. 1 indexed citations
16.
Fournais, Søren, M. Hoffmann-Ostenhof, Thomas Hoffmann-Ostenhof, & Thomas Østergaard Sørensen. (2002). The Electron Density is Smooth Away from the Nuclei. Communications in Mathematical Physics. 228(3). 401–415. 42 indexed citations
17.
Hoffmann-Ostenhof, M., et al.. (2000). Electron Wavefunctions and Densities for Atoms. 27 indexed citations

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026