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List of publications of János Demetrovics

1. On cardinal numbers of sets of precomplete classes in limit-logics. (in Russian; English summary) Acta Cybernetica, Szeged, 1(1972)4,233-239.

2. Maximal classes of limit-logics. (in Russian) Proceedings of University of Moscow, Moscow, (1973)1-12.

3. The number of pairwise non-isomorphic limit logics. (in Russian; Russian summary) Metody Diskret. Analiz, Novosibirsk, 24(1974)21-29.

4. On properties of minimal limit-logics. (in Russian) Studia Sci.Math. Hungarica, Budapest, 9(1974)233-245.

5. On some homomorphisms and orderings of limit-logics. (in Russian) Problemy Kibernetiki, Moscow, 30(1975)5-42.

6. On the comparison of limit-logics by the simulation of finite-valued logic. (in Russian; English summary) Acta Cybernetica, Szeged, 2(1975)4,307-312.

7. On the homomorphisms of limit-logics. (in Hungarian; Russian summary) Alkalmazott Matematikai Lapok, Budapest, 2(1975)125-138.

8. The main diagonal of Sheffer functions. (in Hungarian; Russian and English summary) MTA SZTAKI Közlemények, Budapest, 14(1975)39-46.

9. Structural analysis of the two-valued logic. (in Hungarian; Russian summary) Alkalmazott Matematikai Lapok, Budapest,1(1975)405-424.

10. The utilization of the package PSL/PSA in the planning of information systems. (in Russian) Proceedings of Gruz Academy, Tbilisi, (1976)95-96.

11. On some problems solvable with pattern recognition methods. (with I. Gaudi; in Russian) Proc. of pattern recognition of Polish Academy, Warsaw, (1976)285-288.

12. The M maximal limit-logics. (in Hungarian; English summary) Alkalmazott Matematikai Lapok, Budapest, 2(1976)57-66.

13. The structure of linear classes in the prime-valued logics. (with J. Bagyinszki; in Hungarian; Russian and English summary) MTA SZTAKI Közlemények, Budapest, 16(1976)25-52.

14. On the diagonals of Sheffer functions. (in Russian) Mitteilungen der Mathematischen Gesellschaft der DDR, Berlin, 2-3(1977)31.

15. On the number of candidate keys. (in Hungarian; English summary) Alkalmazott Matematikai Lapok, Budapest, 3(1977)185-191.

16. The structure of the class of symmetric languages invariant for inner linear transformations. (with J. Bagyinszki) In:Proc. of the Second Hungarian Computer Science Conference, Budapest, (1977)100-129.

17. On the main diagonal of Shefferfunctions. Discrete Mathematics, North-Holland, 21(1978)1-5.

18. On the number of candidate keys. Informations Processing Letters, 7(1978)6,266-269.

19. Relational data model. (in Hungarian; English and Russian summary) MTA SZTAKI Közlemények, Budapest, 20(1978)21-33.

20. The lattice of symmetric languages invariant under inner linear transformaitons. (with J. Bagyinszki; Hungarian and Russian summary) MTA SZTAKI Közlemények, Budapest, 19(1978)7-16.

21. On the cardinality of candidate keys. (in Russian) Rostocker- Mathematisches Kolloquium, Rostock, 1(1978).

22. On the velocity of algorithms for finding candidate keys. Theory of operating systems, Visegrád, (1978)21-22.

23. On the cardinality of self-dual closed classes in k-valued logics. (with L. Hannák; Russian and Hungarian summary) MTA SZTAKI Közlemények, Budapest, 23(1979)8-17.

24. The cardinality of closed sets in pre-complete classes in k-valued logics. (with L. Hannák) Acta Cybernetica, Szeged, 4(1979)3,273-277.

25. Contribution to the theory of data base relations. (with A. Békéssy) Discrete Mathematics, North-Holland, 27(1979)1-10.

26. On the equivalence of candidate keys with Sperner systems. Acta Cybernetica, Szeged, 4(1979)3,247-252.

27. On the number of maximal dependencies in a data base relation on fixed order. (with A. Békéssy, L. Hannák, P. Frankl and Gy. Katona) Discrete Mathematics, North-Holland, 30(1980)2,83-88.

28. A generalization of the functional dependencies in the relational data base. (with Gy. Gyepesi; in Russian; English and Hungarian summary) MTA SZTAKI Közlemények, Budapest, 24(1980)55-79.

29. Generation of functional dependencies and their representation by relations. (with Gy. Gyepesi; in Russian; English and Hungarian summary) MTA SZTAKI Közlemények, Budapest, 24(1980)7-18.

30. Candidate keys and antichains. SIAM J. Alg.Disc.Math.,1(1980)1,92.

31. Logical investigation of the relational data model in view of functional dependency. (with A. Békéssy and Gy. Gyepesi; in Hungarian) MTA SZTAKI Tanulmányok, Budapest, 109(1980)1-56.

32. Some remarks on the structure of P3. (with L. Hannák and S. S. Marchenkov) Comptes Rendus Math. Acad. Sci., Canada, 2(1980)4,215-219.

33. The structure of the maximal linear classes in prime-valued logics. (with J. Bagyinszki). Comptes Rendus Math. Acad. Sci., Canada, 2(1980)4,209-213.

34. On closed classes of self-dual functions in P3. (with S. S. Marchenkov and L. Hannák; in Russian) Metody Diskret. Analiz., Novosibirsk, 34(1980)38-73,101.

35. Logical and structural study of relational data model. (in Hungarian) MTA SZTAKI Tanulmányok, Budapest, 114(1980)1-94.

36. On the minimal keys of homogenous file. (in Russian) In: Fundamental Problems of the Application of Math.in Comp. Sci.,Hanoi, (1980)40-47.

37. Some properties of data base relations. (with A. Békéssy) In: Proc. of the 6th conference on the theory of operating systems, Visegrád, (1980)12-14.

38. About finite algebras with one operation. (with L. Hannák; in Russian) Algebrai logika, Novosibirsk, 19(1980)6, 640-645.

39. Generalized functional dependencies in the relational data bases. (in Hungarian; with Gy. Gyepesi; English summary) Alk. Mat. Lapok, Budapest, 6(1980)313-322.

40. Generation of full families and their reprezentation by relations. (with Gy. Gyepesi; in Hungarian; English summary) Alk. Mat. Lapok, Budapest, 6(1980)323-329.

41. Logical and structural investigations of the relational data model. (in Hungarian) Theses of D.Sc.dissert., Budapest, (1980)1-12.

42. Almost all prime-element algebras with transitive automorphism groups are functionally complete. (with L. Hannák and L. Rónyai) Finite Algebra and Multiple-valued Logic, (Proc. Conf.; Szeged, 1979) In:Colloq. Math.28. Soc. J. Bolyai 28, North-Holland, 28(1981)191-201.

43. On closed classes of selfdual functions in P3. (with S. S. Marchenkov and L. Hannák) Finite Algebra and Multiple-valued Logic, (Proc. Conf.; Szeged, 1979) In: Colloq. Math.28. Soc. J. Bolyai 28, North- Holland, 28(1981)183-189.

44. Mathematical analyisis of the relational data model. (Invited Paper) In: Computer Science Conference III., Budapest, (1981)35-43.

45. Prime-element algebras with transitive automorphism groups. (with L. Hannák and L. Rónyai) Comptes Rendus Math. Rep.Acad. Sci., Canada, 3(1981)1,19-22.

46. General dependencies and algorithms for queries in relational data bases. (with Gy. Gyepesi; in Hungarian) MTA SZTAKI Tanulmányok, Budapest, 118(1981)1-55.

47. Extremal combinatorial problems in relational data base. (with Gy. Katona) In: Fundamentals of Computation Theory 81, Lecture Notes in Comp. Sci., Springer-Verlag, 117(1981)110-119.

48. On the functional dependency and some generalizations of it. (with Gy. Gyepesi) Acta Cybernetica, Szeged, 5(1981)3,295-305.

49. Axiomatization of general functional dependencies in relational data bases. (with Gy. Gyepesi; in Russian) Kibernetika, Kiev, 2(1981)42-48.

50. Mathematical analysis of the relational data model. In: Proc. Third Hungarian Comp. Sci. Conf., Budapest, (1981)65-73.

51. The number of reducts of a preprimal algebra. (with L. Hannák) In: Proc. the twelfth international symposium on multiple-valued logic, Paris, IEEE Computer Society, (1982)331-335.

52. On the number of functionally complete algebras. (with L. Hannák) In: Proc. the twelfth international symposium on multiple-valued logic, Paris, IEEE Computer Society, (1982)329-330.

53. Specification meta systems. (with E. Knuth and P. Radó) IEEE Computer, 15(1982)5,29-35.

54. Extremal problems of relational data bases. (with Gy. Katona; in Hungarian; English summary) Alk.Mat.Lapok, Budapest, 8(1982)183-193.

55. How to construct a large set of non-equivalent functionally complete algebras. (with L. Hannák; Russian and Hungarian summary) MTA SZTAKI Közlemények, Budapest, 25(1982)49-52.

56. Some logical dependencies in relational data base.(with Gy. Gyepesi) Rostock Math. Colloq., 20(1982)33-52.

57. Logical and structural investigations of the relational data model. (Russian and Hungarian summary) MTA SZTAKI Közlemények, Budapest, 27(1982)23-35.

58. Logical dependencies in relational data base. (with Gy. Gyepesi) MTA SZTAKI Tanulmányok, Budapest, 133(1982)59-78.

59. On functionally completeness of prime-element algebras. (with L. Hannák and L. Rónyai; Russian and Hungarian summary) MTA SZTAKI Közlemények, Budapest, 25(1982)53-59.

60. The lattice of linear classes in prime-valued logics. (with J. Bagyinszki) Banach Center Publ., Warsaw, 7(1982)105-123.

61. On the free spectra of maximal clones. (with L. Hannák and L. Rónyai) Comptes Rendus Math.Rep.Acad. Sci., Canada, IV(1982)6,363-366.

62. Axiomatization of generalized functional dependencies in relational data bases. (with Gy. Gyepesi) Kibernetica, Kiev, 2(1982)202-210.

63. Logical and Structual Investigations of the Relational Data Model. (Hungarian and Russian summary) MTA SZTAKI Közlemények, Budapest, 27(1982)23-36.

64. Logical dependencies in relational data model. Conference on System Theoretical Aspects in Computer Science, Department of Mathematics, Karl Marx University of Economics, Budapest, 2(1982)71-79.

65. Relational data model. (in Russian) Papers on Computation, I., Karl Marx Univ. of Economics, Dept. Math., Budapest, 3(1982)19-37.

66. The number of reducts of a preprimal algebra. (with L. Hannák) Algebra Universalis, Birkhauser Verlag, Basel, 16(1983)178-186.

67. Selfdual classes and automorphism groups. (with L. Hannák and L. Rónyai) Proceedings the Thirteenth International Syposium on Multiplevalued Logic, IEEE Computer Society Press, Kyoto, (1983)122-125.

68 Clones with sharply transitive automorphism group. (with L. Rónyai; Russian summary) MTA SZTAKI Tanulmányok, Budapest, 147(1983)11-22.

69. On cardinality of the sets of closed classes being in precomplete classes in Pk. (with L. Hannák; in Russian; English summary) MTA SZTAKI Tanulmányok, Budapest, 147(1983)23-32.

70. On free spectra of clones with sharply transitive automorphism group. (with L. Rónyai) Proceedings the Thirteenth International Symposium on Multiple-valued Logics, IEEE Computer Society Press, Kyoto, (1983)126-128.

71 The relation between the number of individuals and dependencies in the composed data bases. (with Z. Füredi and Gy. Katona, in Hungarian, English summary) Alk.Mat.Lapok, Budapest, 9(1983)13-21.

72. A note on minimal matrix representation of closure operations. (with Gy. Gyepesi) Combinatorica, Budapest, 3(1983)2,177-179.

73. Extremal problems of a matrix-representation of closure relations. (with Gy. Katona) Communications of ICM-82 Proceedings, Warsaw, 16(1983)40.

74. Minimum matrix representation of closure operations. (with Z. Füredi and Gy. Katona) Preprint Mat.Kut., Budapest, 12(1983)1-22.

75. Some generalized type functional dependencies formalized as equality set on matrices. (with Gy. Gyepesi) Discrete Applied Mathematics, North-Holland, 6(1983)35-47.

76. Problems of extrema in the theory of relational data bases. (with Gy. Katona; in Russian) Kibernetika, Kiev, 6(1984)33-37.

77. Discrete mathematics. (with J. Denev and R. Pavlov; in Bulgarian; book) Nauka i iszkoszvo, Sofia, 1984.

78. Some remarks on statistical data procesing. (with P. Kerékfy etc.; Hungarian and Russian summary) MTA SZTAKI Közlemények, Budapest, 30(1984)37-51.

79. A Microcomputer-Network Based Decision Support System for Health- care Organizations. (with P. Bakonyi etc.) IFAC 9th World Congress, Preprint, Budapest, XI(1984)85-92.

80 Near unanimity functions of partial orderings. (with L. Hannák and L. Rónyai) Proceedings of 14th International Symposium on Multiple- valued Logic, IEEE, Manitoba, (1984)52-56.

81. Computer Applications in the Hungarian Agriculture. (with A. Békéssy etc.) IFAC 9th World Congress, Preprint, Budapest, XI(1984)99-106.

82. On free spectra of selfdual clones. (with L. Rónyai) Mathematical Structures-Computational Mathematics-Mathematical Modelling, 2, Sofia, (1984)136-140.

83. Essential minimal TC clones in the 3-valued logics. (with I.A. Malcev; in Russian; English and Hungarian summary) MTA SZTAKI Közlemények, Budapest, 31(1984)115-151.

84. On the structure of the relational data model. In: Proc. of Conf. on Automata, Languages and Math. Systems, Karl Marx Univ. of Economics, Budapest, DM 84-2(1984)28-36.

85. Subclones Burle's in P3. (with I.A. Malcev; in Russian) In: Proc. of 9th Conf. of Math. Logic, Novosibirsk, (1984)56.

86. A Microcomputer-Network Based Decision Support System for Health- Care Organizations. (with P. Bakonyi etc.) In: A Bridge between Control Science and Technology, IFAC 9th Triennial World Congress, Pergamon Press, 3(1985)1651-1658.

87. Balanced relation scheme and the problem of key representation. (with H. Thuan etc.; Hungarian and Russian summary) MTA SZTAKI Közlemények, Budapest, 32(1985)51-80.

88. Computer applications in the agriculture. (in Hungarian; with A. Békéssy etc.) Magyar Elektronika, Budapest, 1(1985)26-32.

89. Introduction to computer science. (with J. Denev and R. Pavlov; in Hungarian; book) Tankönyvkiadó, Budapest, 1985.

90. Combinatorial Problems of Database Models. (with Gy. Katona) In: Algebra, Combinatorics and Logic in Computer Science, (Proc. Conf., Györ, 1983), Colloq. Math. 42, Soc. J. Bolyai, North-Holland, 42(1985)331-354.

91. Minimum matrix reprezentation of closure operations. (with Z. Füredi and Gy. Katona) Disc. Appl. Math., North-Holland, 11(1985)115-128.

92. A microcomputer aided decision support system for health-care organizations. (with P. Bakonyi etc.; in Hungarian) Magyar Elektronika, Budapest, 1(1985)34-40.

93. Connexion between the number of attributes and functional dependencies in complex data systems. (with Z. Füredi and Gy. Katona; in Russian) Kibernetika, Kiev, 5(1985)107-115.

94 Computer Applications in the Hungarian Agriculture. (with A. Békéssy etc.) In: A Brige between Control Science and Technology, IFAC 9th Triennial World Congress, Pergamon Press, 3(1985)1659-1666.

95. Optimization of selection in relational expression. (with H. Thuan and N. X. Huy; Hungarian and Russian summary) MTA SZTAKI Közlemények, Budapest, 32(1985)27-49.

96. Free spectra of TC-clones in P3. (with I. A. Malcev; in Russian) Proc. of 7th Comp. Science Conf., Irkutsk, 1(1985)69-70.

97. Some Remarks on Statistical Data Processing System SIS79/GENERA. (with P. Kerékfy etc.) In: System description methodologies, IFIP, North-Holland (1985)519-534.

98. TC-clones in P3. (with I.A. Malcev; in Russian) Proc. of 18th Conf. of Algebra, Kishinev, (1985)162.

99. Data-base Applications in the Hungarian Agriculture. (with G. Buvár etc.; in Rumanian) Automatica, Management, Calculatoare, Editura Technica, Bucuresti, 49(1985)117-126.

100. Computer-aided Specification Techniques. (with E. Knuth and P. Radó; book) Series in Computer Science, World Scientific Press, 1985.

101. MICRO-SHIVA a form management system. (with P. Kerékfy and M. Ruda; in Hungarian) Magyar Elektronika, Budapest, 6(1985)22-31.

102. A Microcomputer Application in a Hungarian Health-Organization. (with P. Bakonyi etc.) Automatica, Management, Calculatoare, Editura Tehnica, Bucuresti, 50(1985)17-27.

103. On the number of clones containing all constants. A problem of McKenzie. (with I. Ágoston and L. Hannák) In: Lectures in Universal Algebra, (Proc. Conf.; Szeged; 1983) Colloq. Math. 43., Soc. J. Bolyai, North-Holland, 43(1986)21-25.

104. On the depth of infinitely generated subalgebras of Post's iterative algebra P3. (with I. A. Malcev) In: Lectures in Universal Algebra, (Proc. Conf.; Szeged; 1983) Colloq. Math. 43., Soc. J. Bolyai, North-Holland, 43(1986)85-96.

105. Conceptual knowledge operations. (with E. Knuth and L. Hannák) Computers and Artifical Intelligence, Bratislava, 5(1986)1,3-11.

106. Essential minimal TC-clones on three-element base set. (with I.A. Malcev) C.R. Math. Acad. Sci., Canada, 8(1986)3,191-196.

107. On algebraic properties of monotone clones. (with L. Hannák and L. Rónyai) Order, D. Reidel Publ. Co. 3(1986)219-225.

108. Some additional properties of keys for relation scheme. (with H. Thuan; Russian and Hungarian summary) MTA SZTAKI Közlemények, Budapest, 34(1986)37-51.

109. On Computer Aided Conceptualization. (with E. Knuth) In: Proc. of 19th Hawaii Int. Conf. on System Sciences, Software, Ed.: B. D. Shriver, II/A(1986)109.

110. Information System Design: On Conceptual Foundations. (with Á. Hernádi and E. Knuth) Information Processing '86, IFIP North- Holland, (1986)635-640.

111. Keys and superkeys for relation schemes. (with H. Thuan) Comp. and Art. Int., Bratislava, 5(1986)6,511-519.

112. Balanced relational schemes and keys in relational scheme.(with H. Thuan and N. Huy; in Russian). In: Kibernetica and Computer Science. Nauka, Moscow, 3(1986)296-316.

113. Translations of Relation Schemes, Balanced Relation Scheme and the Problem of Key Representation. (with H. Thuan etc.) J.Inf. Process. Cybern. EIK, Berlin, 23(1987)2-3,81-97.

114. The Poset of Closures as a Model of Changing Databases. (with G. Burosch and G.O.H. Katona) Order, D. Reidel Publ. Co. 4(1987)127-142.

115. Construction of large set of clones. (with L. Hannák) Zeitschr. für Math. Logic und Grundlagen der Mathematik, Basel, 33(1987)127-133.

116. Keys, antikeys and prime attributes. (with V. D. Thi) Annales Univ. Sci., Setct. Comp., Budapest, 8(1987)35-52.

117. On transformation properties of conceptual structures. (with E. Knuth and Á. Hernádi; Proc. of conf.; in Charlotte, North Carolina ) In: Methodologies for Intelligent Systems, North-Holland, New York, London, Amsterdam,(1987)217-223.

118. Some additonal properties of keys for relation schemes.(with H. Thuan) Serdica, Bulgaricae math. publ., Sofia,13(1987)267-271.

119. On the construction of Burle on clone the three-elementset. (with I. A. Malcev; in Russian) Preprint of Ins. of Math., Novosibirsk, 1(1987)3-43.

120. On monotone clones. (with L. Hannák and L. Rónyai; English summary) MTA SZTAKI Tanulmányok, Budapest,202(1987)39-62.

121. On conceptual transformations. (with E. Knuth and S. Csizmazia) In: Artifical Intelligence and Information-Control Systems of Robots-87.(Proc. of conf. Smolenice; 1987, invited paper) (1987)55-62.

122. Transformation properties of conceptual structures.(with E. Knuth, Á. Hernádi) MTA SZTAKI, Working Paper,Budapest, II-78(1987)1-19.

123. Extremal combinatorial problems of database models. (with G.O.H. Katona) Lecture Notes in Comp. Sci.,Springer-Verlag, 305(1988)99-127.

124. On Keys in the Relational Data Model. (with V. D. Thi) J. Inf. Process. Cybern. EIK, Berlin, 24(1988)10,515-519.

125. On the number of databases and closure operations. (with G. Burosch etc.) Preprint of Math. Inst. of Hung. Acad of Sci.,Budapest, 4(1988)1-33.

126. Algebraic properties of crowns and fences. (with L. Rónyai) Preprint, MTA SZTAKI Budapest, IA, 1(1988)1-10.

127. Some results about functional dependencies.(with V.D.Thi) Acta Cybernetica, Szeged, 8(1988)3,273-278.

128. LATOR - a Professional Database Management System for Local Network. (with L. Hannák etc.; in Korean) In: International Conference KNVVT Artificial Intelligence, Pyongyang, (1988)147-159.

129. On the Information Retrieval ABLAK. (with L. Hannák etc.; in Russian) In: International Conference KNVVT Artificial Intelligence, Pyongyang, (1988)247-252.

130. Relations and minimal keys. (with V.D.Thi) Acta Cybernetica, Szeged, 8(1988)3,279-285.

131. LATOR - a Database Management System for Local Networks. (with Gy. Gyepesi etc.) In: Artificial Intelligence III. Methodology, Systems, Applications, Elsevier Science Publ. B.V., North-Holland, (1988)347-354.

132. Keys, antikeys and prime attributes. (with V.D.Thi) ICOMIDC - Symposium on Math of Comput, HoChiMinch, (1988)31-45.

133. Insurance Information System - ABLAK (with L. Hannák etc.; in Korean) International Conference. Artificial Intelligence, Pyongyang, (1988)159-162.

134. Application of Petri Nets for Planning DBMS. (with E. Knuth etc.; in Russian; book) Nauka, Moscow, (1988).

135. LATOR - a Professional Database Management System for Local Network. (with L. Hannák etc.; in Russian) In: International Conference KNVVT Artificial Intelligence, Pyongyang, (1988)225-247.

136. Extremal Combinatorial Problems of Database Models. (with G. O. H. Katona) In: Math. Fundamentals of Database Systems,Technische Universitat Dresden, Dresden 98(1988)1,7-34.

137. On the Number of Unions in a Family of Sets. (with Gy. Katona and P. P. Pálfy) Annals of New York Academy of Sciences, (1988)18-27.

138. On the Construction of Burle Clones and the Set of three elements. (with I. A. Malcev; in Russian) Acta Cybernetica, Szeged, 9(1989)1,1-25.

139. About closure operation in relation database (with N. X. Huy; in Russian) Publicationes Mathematicae, Debrecen, 36(1989)33-50.

140. Structure of Closure in Relational Databases. (with N. X. Huy; in Russian) In: Conference on intelligent management systems, Bulgarian Academy of Sciences, Varna, (1989)148-154.

141. Algebraic Properties of Crowns and Fences. (with L. Rónyai) Order D. Reidel Publ. Co. 6(1989)91-99.

142. Functional dependencies and the semilattice of closed classes. (with L. O. Libkin, etc.) MFDBS 89, 2nd Symposium on Math. Fundamentals of Database Systems, Visegrad, Hungary, 1989. Lecture Notes in Computer Science, 364(1989)136-147.

143. Translations of relation schemes and representations of closed sets. (with N. X. Huy) PU.M.A.Ser. A,1(1990)3-4, 299-315.

144. Generating sets for Crones and Fences.(with L. Rónyai) Rostocker Mathematisches Kolloquium, Rostock, 39(1990)II, 65-73.

145. Intersections of Isotone Clones on a Finite Set. (with M. Miyakawa etc.) IEEE Proc. of the 20th International Symposium on Multiple-Valued Logic (1990)248-253.

146. Closed Sets and Translations of Relation Schemes. (with N. X. Huy) Computers Math. Applic., Pergamon Press, 21(1991)1,13-23.

147. LATOR - professional database management system for local networks. (with Gy. Gyepesi etc.) Math. and Comp. in Simulation, North-Holland, 33(1991)121-128.

148. Information system for insurance companies (ABLAK). (with L. Hannák etc.) Math. and Comp. in Simulation, North-Holland, 33(1991)1-9.

149. Dependency Types. (with L. Rónyai, H.N.Son) Computers Math. Applic.,Pergamon Press, 21(1991)1,25-33.

150. On the number of databases and closure operations. (with G. Burosch etc.) Theoretical Comp. Science, North-Holland, 78(1991)377-381.

151. Models for database and closure operations. (with L. O. Libkin etc; in Russian) In: Kibernetika, Kiev, 1(1991)40-50.

152. On the representation of dependencies by propostional logic. (with L. Rónyai, H.N.Son) MFDBS 3rd Symp. on Math. Fundamentals of Database. 1991; In: Lecture Notes in Computer Science, Springer-Verlag, 495(1991)230-257.

153. On Relational Database Schemes Having Unique Minimal Key. (with J. Biskup etc.) J.Inform.Process.Cybern, EIK, Berlin, 27(1991)4,217-225.

154. Partial dependencies in relational databases. (with Gy. Katona; in Hungarian) Alk. Mat. Lapok, Budapest, 15(1991)163-179.

155. Branching dependency in relational databases. (with G.O.H. Katona, A. Sali; in Hungarian) Alk. Mat.Lapok, Budapest, 15(1991)181-196.

156. On the composition and decomposition of attributes and tuples. (with L. Rónyai and H.N. Son) Proc. of the 4th International Conference on Database Theory, Berlin, (1992)71-86.

157. Representation of Closure for Functional Multivaluated and Join Dependencies. (with N. X. Huy) Computers and Artificial Intelligence,11(1992)2,143-154.

158. Partial dependencies in relational databases and their realization. (with G.O.H. Katona etc.) Disc. Appl. Math. North-Holland, 40(1992)127-138.

159. Functional dependencies in relational databases: A lattice point of view. (with L. Libkin etc.) Disc. Appl. Math. North-Holland, 40(1992)155-185.

160. A note on intersections of isotone clones. (with L. Rónyai) Acta Cybernetica, Szeged, 10(1992)3,217-220.

161. Normal Form Relation Schemes: A New Characterization. (with G. Hencsey, L. Libkin, etc.) Acta Cybernatica, Szeged, 10(1992)3,141-153.

162. On the interaction between closure operations and choice functions with applications to relational databases (with G. Hencsey, L. Libkin, etc.) Acta Cybernatica, Szeged, 10(1992)3,129-139.

163. Functional dependencies among Boolean dependencies. (with L. Rónyai and H.N. Son.) Annals of Mathematics and Artificial Intelligence,7(1993)83-106.

164. A survey of some combinatorial results concerning functional dependencies in database relations. (with G.O.H. Katona) Annals of Mathematics and Artificial Intelligence, 7(1993)63-82.

165. Some problems concerning keys for relation schemes and relations in the relational datamodel. (with V.D. Thi) Information Processing Letters, 46(1993)179-184.

166. Algorithms for Generating an Armstrong Relation and Inferring Functional Dependencies in the Relational Datamodel. (with V.D. Thi) Computers Math. Applic. 26(1993)4,43-55.

167. On the Number of Closure Operations. (with G. Burosch, G.O.H. Katona, etc.) Bolyai Society Mathematical Studies, Combinatorics, Keszthely, 1(1993)91-105

168. Generating Armstrong Relations for Relation Schemes and Inferring Functional Dependencies from Relations. (with V.D. Thi) International Journal on Information Theories & Applications, Sofia, 1(1993)4, 3-12

169. Some computational problems related to the functional dependency in the relational datamodel (with V.D. Thi) Acta Sci. Math., Szeged, 57(1993)1-4, 627-638

170. On the time complexity of algorithms related to Boyce-Codd normal form (with V.D. Thi) Serdica - Bulgaricae mathematicae publicationes, Sofia, 19(1993)134-144

171. Equality schemes and equality scheme dependencies in relational databases (with L. Rónyai and H.N. Son) Serdica - Bulgaricae mathematicae publicationes, Sofia, 19(1993)121-133

172. Some problems concerning Armstrong relations of dual schemes and relation schemes in the relation datamodel (with V.D. Thi) Acta Cybernetica, Szeged, 11(1993)1-2, 35-47

173. Normal Forms and Minimal Keys in the Relational Datamodel (with V. D. Thi) Acta Cybernetica, Szeged, 11(1994)3, 205-215

174. Databases, Closure Operations and Sperner Families (with H.N. Son) Proc. Conference on Extremal Problems for Finite Sets, Visegrád, (1991), Bolyai Society Mathematical Studies, Budapest, 3(1994)199-203

175. Adatvédelem kommersz-rendszerekben (in Russian) (with F.Urbánszki) ITA-94 Conference, Second International Workshop, Information theories and application. Sandanski, Bulgaria, (1994)

176. Family of Functional Dependencies and Its Equivalent Descriptions.(with V.D.Thi) Computers and Mathematics with Applications. 29(1995)4. 101-109

177. Armstrong relations, functional dependencies and strong dependencies. with V.D. Thi) Computers and Artificial Intelligence, Bratislava,14(1995)3, 279-298

178. Minimal Representations of Branching Dependencies.(with Gy. Katona, A. Sali) Acta Sci. Mathematica, Szeged, 90(1995)213-223

179. The Average Lenght of Keys and Functional Dependencies in (Random) Databases. (with G.O.H. Katona, D. Miklós,O. Seleznjev, B. Thalheim) Proc. of the 5th International ICDT' 95 Conference on Database Theory. Lecture Notes in Computer Science, Springer Verlag, Prague, 893(1995)266-279

180. Some Remarks On Generating Armstrong Relation And Inferring Functional Dependencies. (with V.D. Thi) Acta Cybernetica. 12(1995)167-180

181. Some Observations on the Minimal Armstrong Relations for Normalized Relation Schemes. (with V. D. Thi) Computers and Artificial Intelligence. 14(1995)5, 455-467

182. Some Results about Normal Forms for Functional Dependency in the Relational Datamodel. (with V.D. Thi) Discrete Applied Mathematics.69(1996)61-74

183. Enumeration of Function and Bases of Three-Valued Set Logic under Compositions with Boolean Functions. (with C. Reischer, D. Simovici, I.Stojmenovic): In: Proc. 24th IEEE ISMVL, (1994)164-171

184. Clones and maximal sets in set logic containing all Boolean functions.(with Rónyai, L., Rosenberg, I. G. and I. Stojmenovic) (1996). Acta Sci. Math., Szeged, 62(1996)345-357

185. Asymptotic properties of keys and functional dependencies in random databases. (with G.O.H. Katona, D. Miklós, O. Seleznjev, B. Thalheim) Theoretical Computer Science. 190(1998)151-166

186. Periodical scheduling. (with K. Friedl, L. Rónyai). Publicationes Mathematicae, Debrecen, 52(1998)/3-4,337-342; Proceedings of the Numbers, Functions, Equations’98 International Conference, Noszvaj, Hungary, (1998) 77-78

187. Design type problems motivated by database theory. (with G.O.H. Katona, A. Sali). Journal of Statistical Planning and Inference. 72(1998) 149-164

188. Describing candidate keys by hypergraphs (with V.D. Thi). Computer and Artificial Intelligence. 18(1999) 2, 191-207

189. Functional dependencies in Random databases. (with G.O.H. Katona, D. Miklós, O. Seleznjev, B. Thalheim). Studia Scientiarum Mathematicarum Hungarica 34(1998) 127-140

190. Előadások adatbázis szerkezetekből. (Békéssy A.). ELTE Egyetemi Jegyzet. ELTE Eötvös Kiadó. (1999)

191.DEMETROVICS, J. - PETHŐ, A. - RÓNYAI, L.: On plus-minus 1 representations of integers. Acta Cybernetica. 14:27-36. (1999)

192. ANSTEE, R. - DEMETROVICS, J. - KATONA, G.O.H. - SALI, A.:Low Discrepancy Allocation of Two-Dimensional Data. Proc. of the 1st International Symposium, FoIKS 2000, Germany. Lecture Notes in Computer Science. 1762. 1-12. (2000)

193. DEMETROVICS, J. - KATONA, G.O.H. - MIKLÓS, D.: Error-Correcting Keys in Relational Databases. Proc. of the 1st International Symposium, FoIKS 2000, Germany. Lecture Notes in Computer Science. 1762. 88-93. (2000)

 

 
 
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