Konrad Schmüdgen

4.8k total citations · 2 hit papers
70 papers, 2.0k citations indexed

About

Konrad Schmüdgen is a scholar working on Mathematical Physics, Algebra and Number Theory and Applied Mathematics. According to data from OpenAlex, Konrad Schmüdgen has authored 70 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Mathematical Physics, 32 papers in Algebra and Number Theory and 25 papers in Applied Mathematics. Recurrent topics in Konrad Schmüdgen's work include Advanced Topics in Algebra (32 papers), Advanced Operator Algebra Research (22 papers) and Holomorphic and Operator Theory (19 papers). Konrad Schmüdgen is often cited by papers focused on Advanced Topics in Algebra (32 papers), Advanced Operator Algebra Research (22 papers) and Holomorphic and Operator Theory (19 papers). Konrad Schmüdgen collaborates with scholars based in Germany, France and Iran. Konrad Schmüdgen's co-authors include A. U. Klimyk, I. Heckenberger, Jürgen Friedrich, Fritz Gesztesy, Bernard Mourrain, Jan Stochel, A. Horzela, Jean‐Pierre Gazeau, Raúl E. Curto and Henk de Snoo and has published in prestigious journals such as Communications in Mathematical Physics, Journal of Mathematical Analysis and Applications and Journal of Mathematical Physics.

In The Last Decade

Konrad Schmüdgen

63 papers receiving 1.8k citations

Hit Papers

Quantum Groups and Their Representations 1997 2026 2006 2016 1997 2012 100 200 300 400 500
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Quantum Groups and Their Representations
    1997 542 citations Konrad Schmüdgen et al. CERN Document Server (European Organization for Nuclear Research) profile →
  2. Unbounded Self-adjoint Operators on Hilbert Space
    2012 307 citations Konrad Schmüdgen profile →

Peers

Konrad Schmüdgen
Tom H. Koornwinder Netherlands
Jacques Faraut France
Frits Beukers Netherlands
Charles F. Dunkl United States
A. M. Vershik Russia
George Gasper United States
Andrzej Schinzel Poland
M. S. Ramanujan United States
Dennis Stanton United States
K. T-R McLaughlin United States
Tom H. Koornwinder Netherlands
Konrad Schmüdgen
Citations per year, relative to Konrad Schmüdgen Konrad Schmüdgen (= 1×) peers Tom H. Koornwinder

Countries citing papers authored by Konrad Schmüdgen

Since Specialization
Citations

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

Fields of papers citing papers by Konrad Schmüdgen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Konrad Schmüdgen. 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 Konrad Schmüdgen. The network helps show where Konrad Schmüdgen may publish in the future.

Co-authorship network of co-authors of Konrad Schmüdgen

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

All Works

20 of 20 papers shown
1.
Schmüdgen, Konrad, et al.. (2023). Positivstellensätze for semirings. Mathematische Annalen. 389(1). 947–985. 1 indexed citations
2.
Schmüdgen, Konrad. (2022). Adjoint pairs and unbounded normal operators. Acta Scientiarum Mathematicarum. 88(1-2). 449–467.
3.
Schmüdgen, Konrad. (2021). *-Bimodules. Proceedings of the American Mathematical Society. 149(9). 3923–3938. 1 indexed citations
4.
Curto, Raúl E., Jean‐Pierre Gazeau, A. Horzela, et al.. (2020). Mathematical work of Franciszek Hugon Szafraniec and its impacts. Advances in Operator Theory. 5(3). 1297–1313. 2 indexed citations
5.
Schmüdgen, Konrad, et al.. (2017). The multidimensional truncated moment problem: Atoms, determinacy, and core variety. Journal of Functional Analysis. 274(11). 3124–3148. 17 indexed citations
6.
Schmüdgen, Konrad. (2006). A strict Positivstellensatz for enveloping algebras. Mathematische Zeitschrift. 254(3). 641–653. 9 indexed citations
7.
Schmüdgen, Konrad. (2003). Commutator representations of covariant differential calculi. Banach Center Publications. 189–198. 1 indexed citations
8.
Schmüdgen, Konrad. (1992). Operator Representations of $\boldsymbol R_q^2$. Publications of the Research Institute for Mathematical Sciences. 28(6). 1029–1061. 10 indexed citations
9.
10.
Schmüdgen, Konrad. (1992). Mathematical Physics X. CERN Document Server (European Organization for Nuclear Research). 12 indexed citations
11.
Schmüdgen, Konrad. (1991). On determinacy notions for the two dimensional moment problem. Arkiv för matematik. 29(1-2). 277–284. 8 indexed citations
12.
Schmüdgen, Konrad. (1988). Spaces of Continuous Sesquilinear Forms Associated with Unbounded Operator Algebras. Zeitschrift für Analysis und ihre Anwendungen. 7(4). 309–319. 2 indexed citations
13.
Schmüdgen, Konrad. (1987). On a generalization of the classical moment problem. Journal of Mathematical Analysis and Applications. 125(2). 461–470. 15 indexed citations
14.
Schmüdgen, Konrad. (1987). Unbounded commutants and intertwining spaces of unbounded symmetric operators and ∗-representations. Journal of Functional Analysis. 71(1). 47–68. 5 indexed citations
15.
Schmüdgen, Konrad. (1986). Topological Realizations of Calkin Algebras on Frechet Domains of Unbounded Operator Algebras. Zeitschrift für Analysis und ihre Anwendungen. 5(6). 481–490. 1 indexed citations
16.
Schmüdgen, Konrad. (1986). A Note on Commuting Unbounded Self-Adjoint Operators Affiliated to Properly infinite Von Neumann Algebras II. Bulletin of the London Mathematical Society. 18(3). 287–292. 3 indexed citations
17.
Schmüdgen, Konrad. (1983). On the Heisenberg commutation relation. I. Journal of Functional Analysis. 50(1). 8–49. 34 indexed citations
18.
Schmüdgen, Konrad. (1981). On domains of powers of closed symmetric operators. 28 indexed citations
19.
Schmüdgen, Konrad. (1980). Graded and filtrated topological ∗-algebras I. graded normal topologies. Reports on Mathematical Physics. 18(2). 211–229. 3 indexed citations
20.
Schmüdgen, Konrad. (1980). Uniform topologies on enveloping algebras. Journal of Functional Analysis. 39(1). 57–66. 2 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.

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