Hajnal, András; Juhász, István; Szentmiklóssy, Zoltán Compact CCC spaces of prescribed density via hypergraphs. (English) Zbl 0795.54006 Miklós, D. (ed.) et al., Combinatorics, Paul Erdős is eighty. Vol. 1. Budapest: János Bolyai Mathematical Society. Bolyai Society Mathematical Studies. 239-252 (1993). Reviewer: W.W.Comfort (Singapur) MSC: 54A25 05C65 PDFBibTeX XMLCite \textit{A. Hajnal} et al., in: Combinatorics, Paul Erdős is eighty. Vol. 1. Budapest: János Bolyai Mathematical Society. 239--252 (1993; Zbl 0795.54006)
Gerlits, J.; Hajnal, András; Szentmiklóssy, Zoltán On the cardinality of certain Hausdorff spaces. (English) Zbl 0766.54002 Discrete Math. 108, No. 1-3, 31-35 (1992). MSC: 54A25 54D10 PDFBibTeX XMLCite \textit{J. Gerlits} et al., Discrete Math. 108, No. 1--3, 31--35 (1992; Zbl 0766.54002) Full Text: DOI
Hajnal, András; Juhász, István; Weiss, William Partitioning the pairs and triples of topological spaces. (English) Zbl 0703.04001 Topology Appl. 35, No. 2-3, 177-184 (1990). Reviewer: K.P.Hart MSC: 03E05 54A25 54A35 PDFBibTeX XMLCite \textit{A. Hajnal} et al., Topology Appl. 35, No. 2--3, 177--184 (1990; Zbl 0703.04001) Full Text: DOI
Hajnal, András; Juhász, István Intersection properties of open sets. (English) Zbl 0582.54003 Topology Appl. 19, 201-209 (1985). Reviewer: K.P.Hart MSC: 54A25 54A35 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Topology Appl. 19, 201--209 (1985; Zbl 0582.54003) Full Text: DOI
Hajnal, András; Szentmiklossy, Z. On the cardinality of quasi hereditarily Lindelöf spaces. (English) Zbl 0507.54006 General topology and its relations to modern analysis and algebra V, Proc. 5th Prague Topol. Symp. 1981, Sigma Ser. Pure Math. 3, 248-253 (1983). MSC: 54A25 54D20 PDFBibTeX XML
Hajnal, András; Juhász, István When is a Pixley-Roy hyperspace CCC? (English) Zbl 0507.54007 Topology Appl. 13, 33-41 (1982). MSC: 54A35 03E50 54A25 03E35 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Topology Appl. 13, 33--41 (1982; Zbl 0507.54007) Full Text: DOI
Hajnal, András; Juhász, István Lindelöf spaces a la Shelah. (English) Zbl 0479.54004 Topology, Vol. I, 4th Colloq. Budapest 1978, Colloq. Math. Soc. Janos Bolyai 23, 555-567 (1980). MSC: 54A35 54D20 PDFBibTeX XML
Hajnal, András; Juhász, István Having a small weight is determined by the small subspaces. (English) Zbl 0432.54003 Proc. Am. Math. Soc. 79, 657-658 (1980). MSC: 54A25 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Proc. Am. Math. Soc. 79, 657--658 (1980; Zbl 0432.54003) Full Text: DOI
Hajnal, András; Juhász, István Weakly separated subspaces and networks. (English) Zbl 0447.54005 Logic colloquium ’78, Proc., Mons/Belgium 1978, Stud. Logic Found. Math. Vol. 97, 235-245 (1979). MSC: 54A25 54A35 03E35 03E50 PDFBibTeX XML
Gerlits, J.; Hajnal, András On the tightness of product spaces. (English) Zbl 0438.54004 Logic colloquium ’77, Proc., Wroclaw 1977, Stud. Logic Found. Math. Vol. 96, 123-133 (1978). MSC: 54A25 54B10 03E05 54D55 03E50 03E55 PDFBibTeX XML
Comfort, W. Wistar; Hajnal, András; Juhász, István Compactness-like properties of generalized weak products. (English) Zbl 0345.54005 Topol., Proc. Memphis State Univ. Conf. 1975, 185-188 (1976). MSC: 54A25 54B20 54D30 PDFBibTeX XML
Hajnal, András; Juhász, István Remarks on the cardinality of compact spaces and their Lindelöf subspaces. (English) Zbl 0345.54004 Proc. Am. Math. Soc. 59, 146-148 (1976). MSC: 54A25 54D30 54D20 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Proc. Am. Math. Soc. 59, 146--148 (1976; Zbl 0345.54004) Full Text: DOI
Hajnal, András; Juhász, István On spaces in which every small subspaces is metrizable. (English) Zbl 0345.54003 Bull. Acad. Pol. Sci., Sér. Sci. Math. Astron. Phys. 24, 727-731 (1976). MSC: 54A25 54E35 03E35 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Bull. Acad. Pol. Sci., Sér. Sci. Math. Astron. Phys. 24, 727--731 (1976; Zbl 0345.54003)
Hajnal, András; Juhász, István A separable normal topological group need not be Lindelöf. (English) Zbl 0323.22001 General Topology Appl. 6, 199-205 (1976). MSC: 22A05 54A25 54G20 54D20 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, General Topology Appl. 6, 199--205 (1976; Zbl 0323.22001) Full Text: DOI
Hajnal, András; Juhász, István On first countable non-Lindelöf S-spaces. (English) Zbl 0336.04002 Infinite finite Sets, Colloq. Honour Paul Erdös, Keszthely 1973, Colloq. Math. Soc. Janos Bolyai 10, 837-852 (1975). MSC: 03E15 03E50 54H05 54D15 PDFBibTeX XML
Hajnal, András; Juhász, István On the products of weakly Lindelöf spaces. (English) Zbl 0299.54014 Proc. Am. Math. Soc. 48, 454-456 (1975). MSC: 54D20 54A25 54B10 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Proc. Am. Math. Soc. 48, 454--456 (1975; Zbl 0299.54014) Full Text: DOI
Hajnal, András Some independence results in set theoretical topology. (English) Zbl 0288.54007 Topics in Topol., Col-oqu. Keszthely 1972, Colloquia Math. Soc. Janos Bolyai 8, 365 (1974). MSC: 54A25 54D20 54G20 03E35 03E50 PDFBibTeX XML
Hajnal, András; Juhász, István On the number of open sets. (English) Zbl 0285.54005 Ann. Univ. Sci. Budap. Rolando Eötvös, Sect. Math. 16(1973), 99-102 (1974). MSC: 54A25 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Ann. Univ. Sci. Budap. Rolando Eötvös, Sect. Math. 16, 99--102 (1974; Zbl 0285.54005)
Hajnal, András; Juhász, István On hereditarily \(\alpha\)-Lindelöf and \(\alpha\)-separable spaces. II. (English) Zbl 0274.54002 Fundam. Math. 81, 147-158 (1974). MSC: 54A25 54D20 54G20 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Fundam. Math. 81, 147--158 (1974; Zbl 0274.54002) Full Text: DOI EuDML
Hajnal, András; Juhász, István A consistency result concerning hereditarily \(\alpha\)-separable spaces. (English) Zbl 0292.54006 Nederl. Akad. Wet., Proc., Ser. A 76, 301-307 (1973). MSC: 54A25 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Nederl. Akad. Wet., Proc., Ser. A 76, 301--307 (1973; Zbl 0292.54006)
Hajnal, András; Juhász, István On square-compact cardinals. (English) Zbl 0287.02043 Period. Math. Hung. 3, 285-288 (1973). MSC: 03E55 54D30 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Period. Math. Hung. 3, 285--288 (1973; Zbl 0287.02043) Full Text: DOI
Hajnal, András; Juhász, István A consistency result concerning hereditarily \(\alpha\)-Lindelöf spaces. (English) Zbl 0277.02018 Acta Math. Acad. Sci. Hung. 24, 307-312 (1973). MSC: 03E35 54A25 54D15 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Acta Math. Acad. Sci. Hung. 24, 307--312 (1973; Zbl 0277.02018) Full Text: DOI
Hajnal, András; Juhász, István Two consistency results in topology. (English) Zbl 0257.54003 Bull. Am. Math. Soc. 78, 711 (1972). MSC: 54A25 54D20 54G20 03E35 03E50 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Bull. Am. Math. Soc. 78, 711 (1972; Zbl 0257.54003) Full Text: DOI
Hajnal, András; Juhász, István On discrete subspaces of product spaces. (English) Zbl 0228.54003 General Topology Appl. 2, 11-16 (1972). MSC: 54B10 54A25 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, General Topology Appl. 2, 11--16 (1972; Zbl 0228.54003) Full Text: DOI
Hajnal, András; Juhász, István A consequence of Martin’s axiom. (English) Zbl 0302.54005 Nederl. Akad. Wet., Proc., Ser. A 74, 457-463 (1971). MSC: 54A25 03E15 03E35 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Nederl. Akad. Wet., Proc., Ser. A 74, 457--463 (1971; Zbl 0302.54005)
Hajnal, András; Juhász, István Discrete subspaces and de Groot’s conjecture about the number of open subsets. (English) Zbl 0209.26801 Topol. Appl., Symp. Herceg-Novi (Yugoslavia) 1968, 179 (1969). MSC: 54A25 PDFBibTeX XML
Hajnal, András; Juhász, István Some results in set-theoretic topology. (English. Russian original) Zbl 0153.52102 Sov. Math., Dokl. 8, 141-143 (1967); translation from Dokl. Akad. Nauk SSSR 172, 541-542 (1967). MSC: 54A25 PDFBibTeX XMLCite \textit{A. Hajnal} and \textit{I. Juhász}, Sov. Math., Dokl. 8, 141--143 (1967; Zbl 0153.52102); translation from Dokl. Akad. Nauk SSSR 172, 541--542 (1967)
Erdős, Pál; Hajnal, András On the topological product of discrete \(\lambda\)-compact spaces. (English) Zbl 0114.14102 General Topology and its Relations to modern Analysis and Algebra, Proc. Sympos. Prague 1961, 148-151 (1962). Reviewer: G.Grimeisen MSC: 54D45 54A25 PDFBibTeX XML