K. -E. Hellwig

490 total citations
16 papers, 272 citations indexed

About

K. -E. Hellwig is a scholar working on Atomic and Molecular Physics, and Optics, Artificial Intelligence and Statistical and Nonlinear Physics. According to data from OpenAlex, K. -E. Hellwig has authored 16 papers receiving a total of 272 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Atomic and Molecular Physics, and Optics, 8 papers in Artificial Intelligence and 5 papers in Statistical and Nonlinear Physics. Recurrent topics in K. -E. Hellwig's work include Quantum Mechanics and Applications (10 papers), Quantum Information and Cryptography (6 papers) and Advanced Algebra and Logic (4 papers). K. -E. Hellwig is often cited by papers focused on Quantum Mechanics and Applications (10 papers), Quantum Information and Cryptography (6 papers) and Advanced Algebra and Logic (4 papers). K. -E. Hellwig collaborates with scholars based in Germany, Mexico and Poland. K. -E. Hellwig's co-authors include K. Kraus, S. Bugajski, Paul Busch, S. M. Chumakov and Ana Leonor Rivera and has published in prestigious journals such as Communications in Mathematical Physics, Physics Letters A and Journal of Mathematical Physics.

In The Last Decade

K. -E. Hellwig

15 papers receiving 248 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
K. -E. Hellwig Germany	7	230	160	102	42	18	16	272
Alexander Wilce United States	10	361 1.6×	307 1.9×	100 1.0×	120 2.9×	64 3.6×	32	455
E. Deotto Italy	5	122 0.5×	157 1.0×	44 0.4×	57 1.4×	14 0.8×	5	212
Maciej Ma̧czyński Poland	12	164 0.7×	148 0.9×	45 0.4×	197 4.7×	23 1.3×	34	328
Mladen Pavičić Croatia	12	381 1.7×	358 2.2×	46 0.5×	95 2.3×	13 0.7×	57	478
L. Lanz Italy	9	345 1.5×	220 1.4×	208 2.0×	10 0.2×	8 0.4×	31	388
Claudio Garola Italy	12	270 1.2×	94 0.6×	79 0.8×	54 1.3×	165 9.2×	47	329
Roberto Laura Argentina	11	293 1.3×	152 0.9×	209 2.0×	6 0.1×	24 1.3×	32	335
Adam Bouland United States	8	184 0.8×	260 1.6×	22 0.2×	49 1.2×	21 1.2×	20	308
Romàn R. Zapatrin Russia	8	54 0.2×	46 0.3×	48 0.5×	40 1.0×	8 0.4×	25	137
Mordecai Waegell United States	9	230 1.0×	170 1.1×	52 0.5×	6 0.1×	10 0.6×	30	249

Countries citing papers authored by K. -E. Hellwig

Since Specialization

Citations

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

Fields of papers citing papers by K. -E. Hellwig

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K. -E. Hellwig. 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 K. -E. Hellwig. The network helps show where K. -E. Hellwig may publish in the future.

Co-authorship network of co-authors of K. -E. Hellwig

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

All Works

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16 of 16 papers shown

Bugajski, S., et al.. (1998). On fuzzy random variables and statistical maps. Reports on Mathematical Physics. 41(1). 1–11. 18 indexed citations

Chumakov, S. M., K. -E. Hellwig, & Ana Leonor Rivera. (1995). Quantum Zeno effect in unitary quantum mechanics. Physics Letters A. 197(2). 73–82. 4 indexed citations

Hellwig, K. -E.. (1995). General scheme of measurement processes. International Journal of Theoretical Physics. 34(8). 1467–1479. 5 indexed citations

Busch, Paul, et al.. (1993). On classical representations of finite-dimensional quantum mechanics. International Journal of Theoretical Physics. 32(3). 399–405. 8 indexed citations

Hellwig, K. -E.. (1993). Quantum measurements and information theory. International Journal of Theoretical Physics. 32(12). 2401–2411.

Hellwig, K. -E., et al.. (1983). A formulation of quantum stochastic processes and some of its properties. Foundations of Physics. 13(7). 673–699. 3 indexed citations

Hellwig, K. -E.. (1981). Conditional expectations and duals of instruments. 2 indexed citations

Hellwig, K. -E., et al.. (1977). Conditional expectations in generalized probability theory. Journal of Mathematical Physics. 18(6). 1154–1161. 12 indexed citations

Hellwig, K. -E., et al.. (1977). Propositional systems and measurements. III. Quasitensorproducts of certain orthomodular lattices. International Journal of Theoretical Physics. 16(10). 775–793. 4 indexed citations

10.

Hellwig, K. -E., et al.. (1976). More about Operators Generated by Partial Isometries. Annalen der Physik. 488(3). 199–206. 2 indexed citations

11.

Hellwig, K. -E., et al.. (1974). Propositional systems and measurements—I. International Journal of Theoretical Physics. 9(4). 277–289. 4 indexed citations

12.

Hellwig, K. -E., et al.. (1974). Propositional systems and measurements—II. International Journal of Theoretical Physics. 10(4). 261–272. 3 indexed citations

13.

Hellwig, K. -E. & K. Kraus. (1970). Operations and measurements. II. Communications in Mathematical Physics. 16(2). 142–147. 67 indexed citations

14.

Hellwig, K. -E. & K. Kraus. (1970). Formal Description of Measurements in Local Quantum Field Theory. Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields. 1(2). 566–571. 63 indexed citations

15.

Hellwig, K. -E.. (1969). Coexistent effects in quantum mechanics. International Journal of Theoretical Physics. 2(2). 147–155. 10 indexed citations

16.

Hellwig, K. -E. & K. Kraus. (1969). Pure operations and measurements. Communications in Mathematical Physics. 11(3). 214–220. 67 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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