János Bognár

1.0k total citations · 1 hit paper
4 papers, 651 citations indexed

About

János Bognár is a scholar working on Mathematical Physics, Applied Mathematics and Computational Theory and Mathematics. According to data from OpenAlex, János Bognár has authored 4 papers receiving a total of 651 indexed citations (citations by other indexed papers that have themselves been cited), including 3 papers in Mathematical Physics, 2 papers in Applied Mathematics and 1 paper in Computational Theory and Mathematics. Recurrent topics in János Bognár's work include Advanced Banach Space Theory (2 papers), advanced mathematical theories (1 paper) and Matrix Theory and Algorithms (1 paper). János Bognár is often cited by papers focused on Advanced Banach Space Theory (2 papers), advanced mathematical theories (1 paper) and Matrix Theory and Algorithms (1 paper). János Bognár collaborates with scholars based in Hungary, Croatia and Canada. János Bognár's co-authors include Branko Najman and Paul Binding and has published in prestigious journals such as Linear Algebra and its Applications, Periodica Mathematica Hungarica and CERN Document Server (European Organization for Nuclear Research).

In The Last Decade

János Bognár

2 papers receiving 564 citations

Hit Papers

align trajectories

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.

Indefinite Inner Product Spaces

1974 648 citations János Bognár CERN Document Server (European Organization for Nuclear Research) profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
János Bognár Hungary	2	336	259	236	121	82	4	651
Hellmut Baumgärtel Germany	12	278 0.8×	167 0.6×	192 0.8×	178 1.5×	186 2.3×	53	618
David R. Masson Canada	14	188 0.6×	446 1.7×	151 0.6×	211 1.7×	229 2.8×	40	834
Robert Schatten United States	5	361 1.1×	319 1.2×	189 0.8×	115 1.0×	154 1.9×	6	791
Robert Carroll United States	11	279 0.8×	155 0.6×	75 0.3×	282 2.3×	90 1.1×	81	566
James Rovnyak United States	14	514 1.5×	835 3.2×	347 1.5×	115 1.0×	48 0.6×	62	1.3k
B. Yu. Levin Russia	5	275 0.8×	390 1.5×	129 0.5×	59 0.5×	26 0.3×	27	693
H. J. Brascamp United States	9	353 1.1×	534 2.1×	216 0.9×	98 0.8×	79 1.0×	12	914
Roger T. Lewis United States	16	468 1.4×	469 1.8×	309 1.3×	64 0.5×	69 0.8×	47	802
Roman Sikorski United States	12	237 0.7×	116 0.4×	208 0.9×	53 0.4×	23 0.3×	44	617
Leon Ehrenpreis United States	17	486 1.4×	667 2.6×	195 0.8×	77 0.6×	30 0.4×	42	1.1k

Countries citing papers authored by János Bognár

Since Specialization

Citations

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

Fields of papers citing papers by János Bognár

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of János Bognár

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

All Works

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4 of 4 papers shown

1.

Binding, Paul, et al.. (1994). Nondegenerate Jordan subspaces of self-adjoint operators in indefinite spaces. Linear Algebra and its Applications. 207. 37–48. 1 indexed citations

2.

Bognár, János. (1975). Various norms on indefinite inner product spaces. Periodica Mathematica Hungarica. 6(4). 309–321. 1 indexed citations

3.

Bognár, János. (1974). Indefinite Inner Product Spaces. CERN Document Server (European Organization for Nuclear Research). 648 indexed citations breakdown →

4.

Bognár, János. (1964). Non-negativity properties of operators in spaces with indefinite metric. Annales Academiae Scientiarum Fennicae Series A I Mathematica. 1964. 1–9. 1 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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