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54D80 Special constructions of spaces (spaces of ultrafilters, etc.) (31 articles)

• Nxumalo, Mbekezeli: On open maps and related functions over the Salbany compactification. (English). Archivum Mathematicum, vol. 60 (2024), issue 1, pp. 21-33
• de Oliveira Rodrigues, Vinicius; dos Santos Ronchim, Victor; Szeptycki, Paul J.: Special sets of reals and weak forms of normality on Isbell--Mrówka spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 64 (2023), issue 1, pp. 109-126
• Logunov, Sergei: On butterfly-points in $\beta X$, Tychonoff products and weak Lindelöf numbers. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 63 (2022), issue 3, pp. 379-383
• Logunov, Sergei: On non-normality points, Tychonoff products and Suslin number. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 63 (2022), issue 1, pp. 131-134
• Logunov, Sergei: On Szymański theorem on hereditary normality of $\beta\omega$. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 63 (2022), issue 4, pp. 507-512
• Logunov, Sergei: Non-normality points and nice spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 62 (2021), issue 3, pp. 383-392
• Logunov, Sergei: On hereditary normality of $\omega ^*$, Kunen points and character $\omega_{1}$. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 62 (2021), issue 4, pp. 507-511
• García-Ferreira, Salvador; Rodríguez-López, Yackelin; Uzcátegui, Carlos: On the continuity of the elements of the Ellis semigroup and other properties. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 62 (2021), issue 2, pp. 225-241
• Dow, Alan; Shelah, Saharon: Asymmetric tie-points and almost clopen subsets of $\mathbb {N}^*$. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 59 (2018), issue 4, pp. 451-466
• Hernández-Gutiérrez, Rodrigo; Szeptycki, Paul J.: Some observations on filters with properties defined by open covers. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 56 (2015), issue 3, pp. 355-364
• García-Ferreira, S.; Ortiz-Castillo, Y. F.: The subspace of weak $P$-points of $\mathbb{N}^*$. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 56 (2015), issue 2, pp. 231-236
• García-Ferreira, S.; Ortiz-Castillo, Y. F.: Strong pseudocompact properties. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 55 (2014), issue 1, pp. 101-109
• Filipów, Rafał; Mrożek, Nikodem; Recław, Ireneusz; Szuca, Piotr: Extending the ideal of nowhere dense subsets of rationals to a P-ideal. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 54 (2013), issue 3, pp. 429-435
• Verner, Jonathan L.: Lonely points revisited. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 54 (2013), issue 1, pp. 105-110
• Protasov, I. V.: Coronas of ultrametric spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 52 (2011), issue 2, pp. 303-307
• García-Ferreira, S.; Sanchis, M.: Ultrafilter-limit points in metric dynamical systems. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 48 (2007), issue 3, pp. 465-485
• Fairey, Gareth; Gartside, Paul; Marsh, Andrew: Cardinal invariants of universals. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 46 (2005), issue 4, pp. 685-703
• Simon, Petr: On the existence of true uniform ultrafilters. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 45 (2004), issue 4, pp. 739-741
• Lo Faro, G.; Nordo, G.; Porter, J. R.: On minimal-$\alpha$-spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 44 (2003), issue 4, pp. 727-740
• Hart, Klaas Pieter: An algebraic and logical approach to continuous images. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 43 (2002), issue 2, pp. 5-25
• Kunen, Kenneth: Locally compact linearly Lindelöf spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 43 (2002), issue 1, pp. 155-158
• Vaughan, Jerry E.: Two spaces homeomorphic to $Seq(p)$. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 42 (2001), issue 1, pp. 209-218
• Aizpuru, Antonio; Martínez, F.: Hausdorff compactifications of completely regular spaces. (English). Mathematica Slovaca, vol. 50 (2000), issue 2, pp. 187-217
• Costantini, Camillo: On a problem of Nogura about the product of Fréchet-Urysohn $\langle \alpha_4\rangle$-spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 40 (1999), issue 3, pp. 537-549
• Schröder, J.: On sub-, pseudo- and quasimaximal spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 39 (1998), issue 1, pp. 197-206
• Vipera, M. Cristina: Some results on sequentially compact extensions. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 39 (1998), issue 4, pp. 819-831
• Garcia-Ferreira, Salvador: Quasi $M$-compact spaces. (English). Czechoslovak Mathematical Journal, vol. 46 (1996), issue 1, pp. 161-177
• Banaschewski, B.: Radical ideals and coherent frames. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 37 (1996), issue 2, pp. 349-370
• Turek, S.: Minimal dynamical systems for $\omega$-bounded groups. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 35 (1994), issue 2, pp. 77-81
• Vaughan, Jerry E.: On Frolík's characterization of class $P$. (English). Czechoslovak Mathematical Journal, vol. 44 (1994), issue 1, pp. 1-6
• Malykhin, V. I.: The sequentiality and the Fréchet-Urysohn property with respect to ultrafilters. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 31 (1990), issue 2, pp. 65-69