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In memoriam Ákos Császár (1924–2017)

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References

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  51. Császár, Á.: Gleichmässige Approximation und gleichmässige Stetigkeit. Acta Math. Acad. Sci. Hungar. 20, 253–261 (1969)

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  53. Á. Császár, On approximation theorems for uniform spaces, Acta Math. Acad. Sci. Hungar., 22 (1971/72), 177–186

  54. Császár, Á.: Wallman-type compactifications and superextensions. Period. Math. Hungar. 1, 55–80 (1971)

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  57. Császár, Á.: On some subspaces of hyperextensions. Ann. Univ. Sci. Budapest. Eötvös. Sect. Math. 15, 111–119 (1972)

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  70. Császár, Á., Laczkovich, M.: Some remarks on discrete Baire classes, Special issue dedicated to George Alexits on the occasion of his 80th birthday. Acta Math. Acad. Sci. Hungar. 33, 51–70 (1979)

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  85. Á. Császár, \(C(X)\) determines \(\nu X\), in: Topology (Leningrad, 1982), Lecture Notes in Math., 1060, Springer (Berlin, 1984), pp. 211–216

  86. Á. Császár, Filter-closed function classes, in: Mathematical Structure, Computational Mathematics, Mathematical Modelling, 2, Publ. House Bulgar. Acad. Sci. (Sofia, 1984), pp. 131–135

  87. Császár, Á.: \(T_1\)-closed spaces. Acta Math. Hungar. 45, 341–352 (1985)

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  89. Császár, Á.: u-isomorphic semigroups of continuous functions. Acta Math. Hungar. 48, 213–222 (1986)

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  90. Császár, Á.: Proximities, screens, merotopies, uniformities, I. Acta Math. Hungar. 49, 459–479 (1987)

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  91. Császár, Á.: Proximities, screens, merotopies, uniformities, II. Acta Math. Hungar. 50, 97–109 (1987)

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  92. Császár, Á.: Proximities, screens, merotopies, uniformities, III. Acta Math. Hungar. 51, 23–33 (1988)

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  93. Császár, Á.: Proximities, screens, merotopies, uniformities, IV. Acta Math. Hungar. 51, 151–164 (1988)

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  94. Á. Császár, Multiplicative semigroups of continuous mappings into topological semigroups, in: General Topology and its Relations to Modern Analysis and Algebra, VI (Prague, 1986), Res. Exp. Math., 16, Heldermann (Berlin, 1988), pp. 109–113

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  96. Császár, Á., Laczkovich, M.: Discrete and equal Baire classes. Acta Math. Hungar. 55, 165–178 (1990)

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  97. Császár, Á.: Extensions of closure and proximity spaces. Acta Math. Hungar. 55, 285–300 (1990)

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  98. Császár, Á.: Extensions of discrete and equal Baire functions. Acta Math. Hungar. 56, 93–99 (1990)

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  99. Császár, Á., Deák, J.: Simultaneous extensions of proximities, semi-uniformities, contiguities and merotopies, I. Math. Pannon. 1, 67–90 (1990)

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  100. Császár, Á., Thümmel, E.: Multiplicative semigroups of continuous mappings. Acta Math. Hungar. 56, 189–203 (1990)

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  101. Á. Császár, Wie ist die mathematische Analysis entstanden? (How did mathematical analysis arise and develop?) in: Große Augenblicke aus der Geschichte der Mathematik, Bibliographisches Inst. (Mannheim, 1990), pp. 81–102

  102. Á. Császár, Wie sah Hilbert die Zukunft der Mathematik? (How did Hilbert perceive the future of mathematics?), in: Große Augenblicke aus der Geschichte der Mathematik, Bibliographisches Inst. (Mannheim, 1990), pp. 167–192

  103. Császár, Á., Deák, J.: Simultaneous extensions of proximities, semi-uniformities, contiguities and merotopies, II. Math. Pannon. 2, 19–35 (1991)

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  104. Császár, Á.: Iliadis absolutes for arbitrary spaces. Acta Math. Hungar. 57, 111–120 (1991)

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  105. Császár, Á., Deák, J.: Simultaneous extensions of proximities, semi-uniformities, contiguities and merotopies. III Math. Pannon. 2, 3–23 (1991)

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  106. Császár, Á.: General absolutes of topological spaces. Acta Math. Hungar. 58, 141–151 (1991)

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  107. Császár, Á.: Additive extensions of set functions. Ann. Univ. Sci. Budapest. Eötvös. Sect. Math. 34, 21–26 (1991)

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  108. Császár, Á., Deák, J.: Simultaneous extensions of proximities, semi-uniformities, contiguities and merotopies, IV. Math. Pannon. 3, 57–76 (1992)

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  109. Császár, Á.: \(D\)-completions of Pervin-type quasi-uniformities. Acta Sci. Math. (Szeged) 57, 329–335 (1993)

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  110. Á. Császár, Simultaneous extensions of screens, in: Topology, Theory and Applications, II (Pécs, 1989), Colloq. Math. Soc. János Bolyai, 55, North-Holland (Amsterdam, 1993), pp. 107–126

  111. Császár, Á.: Remarks on additive set functions. Ann. Univ. Sci. Budapest. Eötvös. Sect. Math. 36, 31–34 (1993)

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  112. Császár, Á.: D-complete extensions of quasi-uniform spaces. Acta Math. Hungar. 64, 41–54 (1994)

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  113. Császár, Á.: Almost compact subspaces of hyperextensions. Acta Math. Hungar. 65, 51–68 (1994)

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  114. Császár, Á.: Some remarks on S-closed spaces. Acta Math. Hungar. 65, 203–207 (1994)

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  115. Császár, Á.: Simultaneous extensions of Cauchy structures. Acta Math. Hungar. 65, 365–377 (1994)

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  116. Császár, Á.: Cauchy structures in closure and proximity spaces. Acta Math. Hungar. 66, 201–215 (1995)

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  117. Császár, Á.: Chain-complete screens. Acta Math. Hungar. 67, 275–287 (1995)

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  118. Császár, Á.: \(\lambda \)-complete filter spaces. Acta Math. Hungar. 70, 75–87 (1996)

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  119. Császár, Á.: m-contiguities, I. Acta Math. Hungar. 71, 241–262 (1996)

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  120. Császár, Á.: m-contiguities, II. Acta Math. Hungar. 71, 275–291 (1996)

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  121. Császár, Á.: m-contiguities, III. Acta Math. Hungar. 72, 45–59 (1996)

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  122. Á. Császár, A subcategory of FIL, in: Categorical Topology (L'Aquila, 1994), Kluwer Acad. Publ. (Dordrecht, 1996), pp. 241–244

  123. Császár, Á.: Riesz and Lodato reflections, I. Acta Math. Hungar. 73, 111–128 (1996)

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  124. Császár, Á.: Riesz and Lodato reflections, II. Acta Math. Hungar. 73, 201–212 (1996)

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  125. Császár, Á.: Barna Szénássy (1913–1995). Publ. Math. Debrecen 49, 1–5 (1996)

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  126. Császár, Á.: Riesz and Lodato reflections, III. Acta Math. Hungar. 73, 287–300 (1996)

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  127. Császár, Á.: Generalized open sets. Acta Math. Hungar. 75, 65–87 (1997)

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  128. Császár, Á.: Riesz and Lodato reflections, IV. Acta Math. Hungar. 77, 275–286 (1997)

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  129. Császár, Á.: Cauchy structures and contiguities. Rev. Anal. Numér. Théor. Approx. 26, 49–51 (1997)

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  130. Császár, Á.: Cauchy structures and (m-)contiguities. Acta Math. Hungar. 78, 269–285 (1998)

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  131. Császár, Á.: Quasi-uniform extensions for prescribed traces of sections of entourages. Acta Math. Hungar. 79, 237–252 (1998)

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  132. Császár, Á.: On the \(\gamma \)-interior and \(\gamma \)-closure of a set. Acta Math. Hungar. 80, 89–93 (1998)

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  133. Császár, Á., Makai Jr., E.: Characterization of the function classes \(C(Y)|X\). Acta Math. Hungar. 81, 95–107 (1998)

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  134. Császár, Á.: On a class of D-Cauchy filters. Serdica Math. J. 24, 1–4 (1998)

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  135. Császár, Á.: Cauchy structures and covering structures. Rostock. Math. Kolloq. 52, 3–10 (1998)

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  136. Császár, Á.: On a problem of simultaneous quasi-uniform extension. Acta Math. Hungar. 82, 173–186 (1999)

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Acknowledgements

My thanks go to István Juhász, Gyula Katona, Miklós Laczkovich, Endre Makai, Jr., and György Petruska, whose articles [188], [189], [190], [191], and [192] I extensively consulted while preparing this report. The photos are courtesy of Gyula Staar and Zoltán Buczolich.

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  1. Institute of Mathematics, Eötvös University, Pázmány P. s. 1/C, Budapest, 1117, Hungary

    P. Komjáth

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Komjáth, P. In memoriam Ákos Császár (1924–2017). Acta Math. Hungar. 158, 251–270 (2019). https://doi.org/10.1007/s10474-019-00956-z

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