Roman Ger
- Applied Mathematics top 0.5%
- Mathematical Physics top 2%
- Geometry and Topology top 2%
- Numerical Analysis top 5%
- Algebra and Number Theory top 5%
- Co-authors
- Marek KuczmaBogdan ChoczewskiClaudi AlsinaPeter ŠemrlJustyna SikorskaLudwig ReichKazimierz NikodemZsolt Páles
- Topics
- Functional Equations Stability Results (49 papers)Optimization and Variational Analysis (10 papers)Mathematical and Theoretical Analysis (8 papers)
In The Last Decade
Roman Ger
56 papers receiving 962 citations
Hit Papers
Peers
Comparison fields: 5 of 74
- Applied Mathematics 857
- Mathematical Physics 334
- Geometry and Topology 240
- Numerical Analysis 210
- Algebra and Number Theory 190
Countries citing papers authored by Roman Ger
This map shows the geographic impact of Roman Ger'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 Roman Ger with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roman Ger more than expected).
Fields of papers citing papers by Roman Ger
This network shows the impact of papers produced by Roman Ger. 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 Roman Ger. The network helps show where Roman Ger may publish in the future.
Co-authorship network of co-authors of Roman Ger
This figure shows the co-authorship network connecting the top 25 collaborators of Roman Ger. A scholar is included among the top collaborators of Roman Ger 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 Roman Ger. Roman Ger is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 2 | |
| 2 | 1 | |
| 3 | Completeness of normed spaces as a consequence of the stability of some functional equations | 1 |
| 4 | 15 | |
| 5 | Fischer-Muszély additivity on Abelian groups | 3 |
| 6 | Addition formulae with singularities | 1 |
| 7 | Abstract boundedness and the stability of the Pexider equation | 2 |
| 8 | 1 | |
| 9 | 8 | |
| 10 | 3 | |
| 11 | 69 | |
| 12 | 0 | |
| 13 | 10 | |
| 14 | Almost approximately convex functions | 6 |
| 15 | Convex transformations with Banach lattice range. | 4 |
| 16 | 6 | |
| 17 | 9 | |
| 18 | 11 | |
| 19 | 18 | |
| 20 | 3 |
About Roman Ger
Roman Ger is a scholar working on Applied Mathematics, Geometry and Topology and Mathematical Physics, having authored 62 papers that have together received 1.1k indexed citations. Recurring topics across this work include Functional Equations Stability Results (49 papers), Optimization and Variational Analysis (10 papers) and Mathematical and Theoretical Analysis (8 papers). The work is most often cited by research in Applied Mathematics (857 citations), Algebra and Number Theory (190 citations) and Numerical Analysis (210 citations). Roman Ger has collaborated with scholars based in Poland, Czechia and Hungary. Frequent co-authors include Marek Kuczma, Bogdan Choczewski, Claudi Alsina, Peter Šemrl, Justyna Sikorska, Ludwig Reich, Kazimierz Nikodem, Zsolt Páles, Roman Badora and Antal A. Járai. Their work appears in journals such as Journal of Mathematical Analysis and Applications, Nonlinear Analysis and Proceedings of the American Mathematical Society.
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.