Hajnal Andréka

2.4k total citations
70 papers, 957 citations indexed

About

Hajnal Andréka is a scholar working on Computational Theory and Mathematics, Artificial Intelligence and Algebra and Number Theory. According to data from OpenAlex, Hajnal Andréka has authored 70 papers receiving a total of 957 indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Computational Theory and Mathematics, 47 papers in Artificial Intelligence and 5 papers in Algebra and Number Theory. Recurrent topics in Hajnal Andréka's work include Advanced Algebra and Logic (44 papers), Logic, Reasoning, and Knowledge (42 papers) and Logic, programming, and type systems (24 papers). Hajnal Andréka is often cited by papers focused on Advanced Algebra and Logic (44 papers), Logic, Reasoning, and Knowledge (42 papers) and Logic, programming, and type systems (24 papers). Hajnal Andréka collaborates with scholars based in Hungary, United States and United Kingdom. Hajnal Andréka's co-authors include Istvàn Németi, Johan van Benthem, Richard J. Thompson, Ildikó Sain, Steven Givant, Judit X. Madarász, Tamás Gergely, Roger D. Maddux, Tarek Sayed Ahmed and Ian Hodkinson and has published in prestigious journals such as Transactions of the American Mathematical Society, Theoretical Computer Science and Proceedings of the American Mathematical Society.

In The Last Decade

Hajnal Andréka

68 papers receiving 852 citations

Peers

Hajnal Andréka
Istvàn Németi Hungary
Steven Givant United States
Heinz-Dieter Ebbinghaus Germany
J. C. Shepherdson United Kingdom
Robert Goldblatt New Zealand
Yves Lafont France
Johann A. Makowsky Israel
J. M. E. Hyland United Kingdom
Donald Monk United States
Erwin Engeler Switzerland
Istvàn Németi Hungary
Hajnal Andréka
Citations per year, relative to Hajnal Andréka Hajnal Andréka (= 1×) peers Istvàn Németi

Countries citing papers authored by Hajnal Andréka

Since Specialization
Citations

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

Fields of papers citing papers by Hajnal Andréka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hajnal Andréka

This figure shows the co-authorship network connecting the top 25 collaborators of Hajnal Andréka. A scholar is included among the top collaborators of Hajnal Andréka 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 Hajnal Andréka. Hajnal Andréka 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.
Givant, Steven & Hajnal Andréka. (2018). A representation theorem for measurable relation algebras. Annals of Pure and Applied Logic. 169(11). 1117–1189. 4 indexed citations
2.
Andréka, Hajnal & Istvàn Németi. (2017). How many varieties of cylindric algebras are there.. Repository of the Academy's Library (Library of the Hungarian Academy of Sciences). 5 indexed citations
3.
Andréka, Hajnal, et al.. (2011). The equational theory of Kleene lattices. Theoretical Computer Science. 412(52). 7099–7108. 3 indexed citations
4.
Andréka, Hajnal. (2002). Operators and Laws for Combining Preference Relations. Journal of Logic and Computation. 12(1). 13–53. 60 indexed citations
5.
Andréka, Hajnal, et al.. (1998). Notions of density that imply representability in algebraic logic. Annals of Pure and Applied Logic. 91(2-3). 93–190. 10 indexed citations
6.
Andréka, Hajnal, Agi Kurucz, Istvàn Németi, Ildikó Sain, & András Simon. (1997). Causes and remedies for undecidability in arrow logics and in multi-modal logics. 63–99. 3 indexed citations
7.
Andréka, Hajnal. (1997). Complexity of equations valid in algebras of relations part I: Strong non-finitizability. Annals of Pure and Applied Logic. 89(2-3). 149–209. 33 indexed citations
8.
Andréka, Hajnal, Ivo Düntsch, & Istvàn Németi. (1995). Expressibility of properties of relations. Journal of Symbolic Logic. 60(3). 970–991. 4 indexed citations
9.
Andréka, Hajnal, Steven Givant, & Istvàn Németi. (1995). Perfect extensions and derived algebras. Journal of Symbolic Logic. 60(3). 775–796. 2 indexed citations
10.
Andréka, Hajnal & Richard J. Thompson. (1988). A Stone Type Representation Theorem for Algebras of Relations of Higher Rank. Transactions of the American Mathematical Society. 309(2). 671–671. 23 indexed citations
11.
Andréka, Hajnal, et al.. (1987). A unifying theorem for algebraic semantics and dynamic logics. Information and Computation. 72(1). 31–45. 2 indexed citations
12.
Andréka, Hajnal, Istvàn Németi, & Ildikó Sain. (1982). A complete logic for reasoning about programs via nonstandard model theory I. Theoretical Computer Science. 17(2). 193–212. 31 indexed citations
13.
Andréka, Hajnal, Istvàn Németi, & Ildikó Sain. (1982). A complete logic for reasoning about programs via nonstandard model theory II. Theoretical Computer Science. 17(3). 259–278. 17 indexed citations
14.
Andréka, Hajnal, Istvàn Németi, & Ildikó Sain. (1979). Henkin-type semantics for program-schemes to turn negative results to positive.. 18–24. 9 indexed citations
15.
Andréka, Hajnal & Istvàn Németi. (1978). The generalized completeness of Horn predicate-logic as a programming language.. Acta Cybernetica. 4. 3–10. 32 indexed citations
16.
Andréka, Hajnal & Istvàn Németi. (1978). Completeness of Floyd logic. 12 indexed citations
17.
Andréka, Hajnal, Tamás Gergely, & Istvàn Németi. (1977). On universal algebraic constructions of logics. Studia Logica. 36(1-2). 9–47. 25 indexed citations
18.
Andréka, Hajnal, et al.. (1976). ON A PROOF OF SHELAH. Repository of the Academy's Library (Library of the Hungarian Academy of Sciences). 2 indexed citations
19.
Andréka, Hajnal & Istvàn Németi. (1975). A simple, purely algebraic proof of the completeness of some first order logics. Algebra Universalis. 5(1). 8–15. 14 indexed citations
20.
Andréka, Hajnal, et al.. (1973). Notes on maximal congruence relations, automata and related topics.. Acta Cybernetica. 2(9). 71–88. 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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