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ORCIDHajnal Andréka
- > Home > Persons > Hajnal Andréka
Publications
- 2023
[j43]Mike Stannett, Edward Higgins, Hajnal Andréka, Judit X. Madarász, István Németi, Gergely Székely:
No Faster-Than-Light Observers (GenRel). Arch. Formal Proofs 2023 (2023)- 2022
- [j42]Hajnal Andréka, Judit X. Madarász, István Németi, Gergely Székely
:
Complexity in the interdefinability of timelike, lightlike and spacelike relatedness of Minkowski spacetime. Ann. Pure Appl. Log. 173(5): 103100 (2022) - 2021
- [j41]Hajnal Andréka, István Németi:
Two-variable Logic has Weak, but not Strong, Beth Definability. J. Symb. Log. 86(2): 785-800 (2021) - 2020
- [j40]Hajnal Andréka, István Németi, Steven Givant:
Nonrepresentable Relation Algebras from Groups. Rev. Symb. Log. 13(4): 861-881 (2020) - 2019
- [j39]Hajnal Andréka, István Németi, Steven Givant:
Nonrepresentable Relation Algebras from Groups - addendum. Rev. Symb. Log. 12(4): 892 (2019) - 2017
- [j36]Hajnal Andréka, Johan van Benthem, István Németi:
On A New Semantics for First-Order Predicate Logic. J. Philos. Log. 46(3): 259-267 (2017) - [j35]Hajnal Andréka, Steven Givant, Peter Jipsen, István Németi:
On Tarski's Axiomatic Foundations of the Calculus of Relations. J. Symb. Log. 82(3): 966-994 (2017) - 2014
- [p2]Hajnal Andréka, István Németi:
Comparing Theories: The Dynamics of Changing Vocabulary. Johan van Benthem on Logic and Information Dynamics 2014: 143-172 - 2012
- [j34]Hajnal Andréka, Judit X. Madarász, István Németi:
Decidability, Undecidability, and Gödel's Incompleteness in Relativity Theories. Parallel Process. Lett. 22(3) (2012) - [j33]Hajnal Andréka, István Németi, Gergely Székely:
Closed timelike Curves in relativistic Computation. Parallel Process. Lett. 22(3) (2012) - [j32]Hajnal Andréka, Judit X. Madarász, István Németi, Gergely Székely:
A logic road from special relativity to general relativity. Synth. 186(3): 633-649 (2012) - [c17]Hajnal Andréka, Szabolcs Mikulás, István Németi:
Residuated Kleene Algebras. Logic and Program Semantics 2012: 1-11 - 2011
- [j31]Hajnal Andréka, Szabolcs Mikulás, István Németi:
The equational theory of Kleene lattices. Theor. Comput. Sci. 412(52): 7099-7108 (2011) - 2009
- [j30]Hajnal Andréka, István Németi, Péter Németi:
General relativistic hypercomputing and foundation of mathematics. Nat. Comput. 8(3): 499-516 (2009) - 2008
- [j29]Tarek Sayed Ahmed, Hajnal Andréka, István Németi:
Omitting types for finite variable fragments and complete representations of algebras. J. Symb. Log. 73(1): 65-89 (2008) - [j28]Hajnal Andréka, Judit X. Madarász, István Németi, Gergely Székely:
Axiomatizing Relativistic Dynamics without Conservation Postulates. Stud Logica 89(2): 163-186 (2008) - 2007
- [p1]Hajnal Andréka, Judit X. Madarász, István Németi:
Logic of Space-Time and Relativity Theory. Handbook of Spatial Logics 2007: 607-711 - 2006
- [c16]István Németi, Hajnal Andréka:
Can General Relativistic Computers Break the Turing Barrier?. CiE 2006: 398-412 - [c15]István Németi, Hajnal Andréka:
New Physics and Hypercomputation. SOFSEM 2006: 63-63 - 2005
- [j27]Hajnal Andréka, Judit X. Madarász, István Németi:
Mutual definability does not imply definitional equivalence, a simple example. Math. Log. Q. 51(6): 591-597 (2005) - 1999
- [j24]Hajnal Andréka, Ian M. Hodkinson, István Németi:
Finite Algebras of Relations Are Representable on Finite Sets. J. Symb. Log. 64(1): 243-267 (1999) - 1998
- [j23]Hajnal Andréka, Steven Givant, Szabolcs Mikulás, István Németi, András Simon:
Notions of Density That Imply Representability in Algebraic Logic. Ann. Pure Appl. Log. 91(2-3): 93-190 (1998) - [j22]Hajnal Andréka, István Németi, Johan van Benthem:
Modal Languages and Bounded Fragments of Predicate Logic. J. Philos. Log. 27(3): 217-274 (1998) - [j21]Hajnal Andréka, Robert Goldblatt, István Németi:
Relativised Quantification: Some Canonical Varieties of Sequence-Set Algebras. J. Symb. Log. 63(1): 163-184 (1998) - 1997
- [b1]Hajnal Andréka, Steven Givant, István Németi:
Decision problems for equational theories of relation algebras. Memoirs of the American Mathematical Society 126, American Mathematical Society 1997, ISBN 978-0-8218-0595-4, pp. I-XIV, 1-126 - [c14]Hajnal Andréka, Ian M. Hodkinson, István Németi:
The finite base property for some cylindric-relativized algebras (Abstract). RelMiCS 1997: 81 - 1995
- [j18]Hajnal Andréka, Johan van Benthem, István Németi:
Back and Forth Between Modal Logic and Classical Logic. Log. J. IGPL 3(5): 685-720 (1995) - [j17]Hajnal Andréka, Steven Givant, István Németi:
Perfect Extensions and Derived Algebras. J. Symb. Log. 60(3): 775-796 (1995) - [j16]Hajnal Andréka, Ivo Düntsch, István Németi:
Expressibility of Properties of Relations. J. Symb. Log. 60(3): 970-991 (1995) - [j15]Hajnal Andréka, Ivo Düntsch, István Németi:
Binary Relations and Permutation Groups. Math. Log. Q. 41: 197-216 (1995) - 1994
- [j13]Hajnal Andréka, Steven Givant, István Németi:
The Lattice of Varieties of Representable Relation Algebras. J. Symb. Log. 59(2): 631-661 (1994) - [j12]Hajnal Andréka, Ágnes Kurucz, István Németi:
Connections Between Axioms of Set Theory and Basic Theorems of Universal Algebra. J. Symb. Log. 59(3): 912-923 (1994) - 1993
- [c13]Hajnal Andréka, István Németi, Ildikó Sain:
Applying Algebraic Logic to Logic. AMAST 1993: 5-26 - 1991
- [j10]Hajnal Andréka, István Németi, Ildikó Sain:
On the Strength of Temporal Proofs. Theor. Comput. Sci. 80(2): 125-151 (1991) - 1990
- [j9]Hajnal Andréka, István Németi, R. J. Thompson:
Weak Cylindric Set Algebra and Weak Subdirect Indecomposability. J. Symb. Log. 55(2): 577-588 (1990) - 1989
- [j8]Hajnal Andréka, Miklós Ferenczi, István Németi, György Serény:
Algebraic Logic Conference. J. Symb. Log. 54(2): 686 (1989) - [c12]Hajnal Andréka, István Németi, Ildikó Sain:
On the Strength of Temporal Proofs. MFCS 1989: 135-144 - 1988
- [j7]Hajnal Andréka, William Craig, István Németi:
A System of Logic for Partial Functions Under Existence-Dependent Kleene Equality. J. Symb. Log. 53(3): 834-839 (1988) - [c11]Hajnal Andréka, Bjarni Jónsson, István Németi:
Relatively free relation algebras. Algebraic Logic and Universal Algebra in Computer Science 1988: 1-14 - 1987
- [j6]Hajnal Andréka, Irène Guessarian, István Németi:
A Unifying Theorem for Algebraic Semantics and Dynamic Logics. Inf. Comput. 72(1): 31-45 (1987) - 1985
- [j5]Hajnal Andréka, István Németi:
On the Number of Generators of Cylindric Algebras. J. Symb. Log. 50(4): 865-873 (1985) - [c9]Hajnal Andréka, Irène Guessarian, István Németi:
A unifying theorem for algebraic semantics and dynamic logics. FCT 1985: 8-17 - 1982
- [j4]Hajnal Andréka, István Németi, Ildikó Sain:
A Complete Logic for Reasoning about Programs via Nonstandard Model Theory I. Theor. Comput. Sci. 17: 193-212 (1982) - [j3]Hajnal Andréka, István Németi, Ildikó Sain:
A Complete Logic for Reasoning about Programs via Nonstandard Model Theory II. Theor. Comput. Sci. 17: 259-278 (1982) - 1981
- [c8]Hajnal Andréka, István Németi:
Some Universal Algebraic and Model Theoretic Results in Computer Science. FCT 1981: 16-23 - [c7]Hajnal Andréka, István Németi, Ildikó Sain:
A Characterization of Floyd-Provable Programs. MFCS 1981: 162-171 - 1980
- [c6]Hajnal Andréka, Tamás Gergely, István Németi:
Model Theoretic Semantics For Many-Purpose Languages And Language Hierarchies. COLING 1980: 213-219 - 1979
- [c4]Hajnal Andréka, István Németi, Ildikó Sain:
Henkin-type semantics for program-schemes to turn negative results to positive. FCT 1979: 18-24 - [c3]Hajnal Andréka, István Németi, Ildikó Sain:
Completeness Problems in Verification of Programs and Program Schemes. MFCS 1979: 208-218 - 1978
- [j2]Hajnal Andréka, István Németi:
The generalized completeness of Horn predicate-logic as a programming language. Acta Cybern. 4(1): 3-10 (1978) - 1975
- [c2]Hajnal Andréka, Tamás Gergely, István Németi:
On the Role of Mathematical Language Concept in the Theory of Intelligent Systems. IJCAI 1975: 9-14 - [c1]T. Gorgely, Hajnal Andréka, István Németi:
Definition Theory as Basis for a Creative Problem Solver. IJCAI 1975: 40-45 - 1973
- [j1]Hajnal Andréka, Sándor Horváth, István Németi:
Notes on maximal congruence relations, automata and related topics. Acta Cybern. 2(1): 71-88 (1973)
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