Almost strongly star-Menger and related properties

Ricardo Cruz-Castillo

https://orcid.org/0000-0002-9370-7077

Mexico

Universidad Autónoma del Estado de Hidalgo image/svg+xml

Area Académica de Matemáticas y Física, Instituto de Ciencias Básicas e Ingeniería

Alejandro Ramírez-Páramo

https://orcid.org/0000-0002-2777-1118

Mexico

Benemérita Universidad Autónoma de Puebla image/svg+xml

Facultad de Ciencias de la Electrónica

Jesús F. Tenorio

https://orcid.org/0000-0003-0705-3394

Mexico

Technological University of the Mixteca image/svg+xml

Instituto de Física y Matemáticas

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Accepted: 2025-03-14

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Published: 2025-10-01

DOI: https://doi.org/10.4995/agt.2025.22096
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Keywords:

Almost star-Menger space, Almost strongly star-Menger space, Hit-and-miss topologies, Hyperspaces, (star) selection principles

Supporting agencies:

This research was not funded

Abstract:

In this paper we introduce the almost strongly star-Menger property and we provide some results and relationships with another known properties in literature. Furthermore, we characterize the almost strongly star-Menger and the almost star-Menger properties in hyperspaces endowed with the hit-and-miss topology $\tau_\Delta$, by using two new selection principles $\mathbf{S}_{\textsf{fin}}^{\star}(\Pi_{\Delta}(\Lambda), \mathscr{B})$ and $\mathbf{SS}_{\textsf{fin}}^{\star}(\Pi_{\Delta}(\Lambda), \mathscr{B})$, for an appropriate family $\mathscr{B}$.

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References:

P. S. Alexandroff and P. S. Urysohn, Mémoire sur les espaces topologiques compacts, Verh. Akad. Wetensch. Amsterdam 14 (1929), 1-96.

P. Bal and S. Bhowmik, Some new star-selection principles in topology, Filomat 31, no. 13 (2017), 4041-4050. https://doi.org/10.2298/FIL1713041B

M. Bonanzinga, F. Cammaroto, Lj. D. R. Kočinac and M.V. Matveev, On weaker forms of Menger, Rothberger and Hurewicz properties, Math. Vesnik 61 (2009), 13-23.

M. Bonanzinga, D. Giacopello and F. Maesano, Some properties defined by relative versions of star-covering properties II, Appl. Gen. Topol. 24, no. 2 (2023), 391-405. https://doi.org/10.4995/agt.2023.17926

M. Bonanzinga and F. Maesano, Some properties defined by relative versions of star-covering properties, Topol. Appl. 306, no. 1 (2020), 107923. https://doi.org/10.1016/j.topol.2021.107923

M. Bonanzinga and M.V. Matveev, Products of star-Lindelöf and related spaces, Houston J. Math. 27, no. 1 (2001), 45-57.

E. Borel, Sur la classification des ensembles de mesure nulle, Bull. Soc. Math. de France 47 (1919), 97-125. https://doi.org/10.24033/bsmf.996

R. Cruz-Castillo, A. Ramírez-Páramo and J. F. Tenorio, Characterizations of weaker forms of the Rothberger and Menger properties in hyperspaces, Filomat 37, no. 15 (2023), 5053-5063. https://doi.org/10.2298/FIL2315053C

R. Cruz-Castillo, A. Ramírez-Páramo and J. F. Tenorio, Characterizations of weakly star-type Rothberger and Menger properties in hyperspaces, Filomat 37, no. 24 (2023), 8237-8245. https://doi.org/10.2298/FIL2324237C

R. Cruz-Castillo, A. Ramírez-Páramo and J. F. Tenorio, H-star-Lindelöf property and weaker versions, Topol. Appl. 350 (2024), 108911. https://doi.org/10.1016/j.topol.2024.108911

R. Cruz-Castillo, A. Ramírez-Páramo and J. F. Tenorio, Hurewicz and Hurewicz-type star selection principles for hit-and-miss topology, Filomat 37, no. 4 (2023), 1143-1153. https://doi.org/10.2298/FIL2304143C

R. Cruz-Castillo, A. Ramírez-Páramo and J. F. Tenorio, Menger and Menger-type star selection principles for hit-and-miss topology, Topol. Appl. 290 (2021), 107574. https://doi.org/10.1016/j.topol.2020.107574

R. Cruz-Castillo, A. Ramírez-Páramo and J. F. Tenorio, On weaker versions of R-star-Lindelöf and M-star-Lindelöf properties, Filomat 38, no. 18 (2024), 6453-6463.

R. Cruz-Castillo, A. Ramírez-Páramo and J. F. Tenorio, Star and strong star-type versions of Rothberger and Menger principles for hit-and-miss topology, Topol. Appl. 300 (2021), 107758. https://doi.org/10.1016/j.topol.2021.107758

P. Daniels, Pixley-Roy spaces over subsets of the reals, Topol. Appl. 29 (1988), 93-106. https://doi.org/10.1016/0166-8641(88)90061-2

G. Di Maio, Lj. D. R. Kočinac and E. Meccariello, Selection principles and hyperspaces topologies, Topol. Appl. 153 (2005), 912-923. https://doi.org/10.1016/j.topol.2005.01.020

J. Díaz-Reyes, A. Ramírez-Páramo and J. F. Tenorio, Rothberger and Rothberger-type star selection principles on hyperspaces, Topol. Appl. 287 (2021), 107448. https://doi.org/10.1016/j.topol.2020.107448

E. van Douwen, G. M. Reed, A. W. Roscoe and I. J. Tree, Star covering properties, Topol. Appl. 39 (1991), 79-103. https://doi.org/10.1016/0166-8641(91)90077-Y

R. Engelking, On the double circumference of Alexandroff, Bull. Acad. Pol. Sci. Ser. Astron. Math. Phys. 16, no. 8 (1968), 629-634.

J. Fell, Hausdorff topology for the closed subsets of a locally compact non-Hausdorff spaces, Proc. Amer. Math. Soc. 13 (1962), 472-476. https://doi.org/10.1090/S0002-9939-1962-0139135-6

F. Hausdorff, Grundzuge der Mengenlehre, Leipzig, 1914.

W. Hurewicz, Über eine Verallgemeinerung des Borelschen Theorems, Math. Z. 24 (1925), 401-421. https://doi.org/10.1007/BF01216792

W. Just, A. W. Miller, M. Scheepers and P. J. Szeptycki, The combinatorics of open covers II, Topol. Appl. 73 (1996), 241-266. https://doi.org/10.1016/S0166-8641(96)00075-2

D. Kocev, Almost Menger and related spaces, Mat. Vesnik 61, no. 2 (2009), 173-180.

Lj. D. R. Kočinac, On star selection principles theory, Axioms 12, no. 93 (2023), 1-15. https://doi.org/10.3390/axioms12010093

Lj. D. R. Kočinac, Star-Menger and related spaces, Publ. Math. Debrecen 55 (1999), 421-431. https://doi.org/10.5486/PMD.1999.2097

Lj. D. R. Kočinac, Star-Menger and related spaces II, Filomat 13 (1999), 129-140.

Lj. D. R. Kočinac, Star selection principles: A survey, Khayyam J. Math. 1 (2015), 82-106.

G. Kumar and B. K. Tyagi, Weakly strongly star-Menger spaces, CUBO, A Mathematical Journal 32, no. 2 (2021), 287-298. https://doi.org/10.4067/S0719-06462021000200287

Z. Li, Selection principles of the Fell topology and the Vietoris topology, Topol. Appl. 212 (2016), 90-104. https://doi.org/10.1016/j.topol.2016.09.008

M. V. Matveev, A survey on star covering properties, Topology Atlas (1998), Preprint No. 330.

K. Menger, Einige Überdeckungssätze der Punltmengenlehre, Sitzungsberichte Abt. 2a, Mathematik, Astronomie, Physik, Meteorologie und Mechanik (Wiener Akademie, Wien) 133 (1924), 421-444.

E. Michael, Topologies on spaces of subsets, Trans. Amer. Math. Soc. 71 (1951), 152-182. https://doi.org/10.1090/S0002-9947-1951-0042109-4

B. A. Pansera, Weaker forms of the Menger property, Quaest. Math. 35 (2012), 161-169. https://doi.org/10.2989/16073606.2012.696830

D. Pompeiu, Sur la continuité des fonctions de variables complexes, Ann. Fac. Sci. de Toulouse: Mathématiques 2e Série 7, no. 3 (1905), 265-315. https://doi.org/10.5802/afst.226

H. Poppe, Eine Bemerkung über Trennungsaxiome in Räumen von abgeschlossenen Teilmengen topologisher Räume, Arch. Math. 16 (1965), 197-198. https://doi.org/10.1007/BF01220021

A. Ramírez-Páramo and A. Romero-Morales, Rothberger/Lindelöf-type star selection principles for hit-and-miss topology, Houston J. Math. 48, no. 3 (2022), 677-689.

F. Rothberger, Eine Verschärfung der Eigenschaft C, Fundam. Math. 30 (1938), 50-55. https://doi.org/10.4064/fm-30-1-50-55

M. Scheepers, Combinatorics of open covers I: Ramsey theory, Topol. Appl. 69 (1996), 31-62. https://doi.org/10.1016/0166-8641(95)00067-4

M. Scheepers, Combinatorics of open covers VI. Selectors for sequences of dense sets, Quaest. Math. 22, no. 1 (1999), 109-130. https://doi.org/10.1080/16073606.1999.9632063

M. Scheepers, Lusin sets, Proc. Amer. Math. Soc. 197 (1999), 251-257. https://doi.org/10.1090/S0002-9939-99-04512-8

Y. K. Song, Remarks on almost Rothberger spaces and weakly Rothberger spaces, Quaest. Math. 38, no. 3 (2015), 317-325. https://doi.org/10.2989/16073606.2014.981710

Y. K. Song, Remarks on strongly star-Menger spaces, Comment. Math. Univ. Carolin. 54, no. 1 (2013), 97-104.

Y. K. Song, Some remarks on almost Menger spaces and weakly Menger spaces, Publ. de l'Ins. Math. 98, no. 112 (2015), 193-198. https://doi.org/10.2298/PIM150513031S

Y. K. Song, Some remarks on almost star countable spaces, Studia Sci. Math. Hungar. 52, no. 1 (2015), 12-20. https://doi.org/10.1556/sscmath.52.2015.1.1295

L. Vietoris, Bereiche Zweiter Ordnung, Monatshefte für Mathematik und Physik 33 (1923), 49-62. https://doi.org/10.1007/BF01705590

L. Zsilinszky, Baire spaces and hyperspace topologies, Proc. Amer. Math. Soc. 124 (1996), 3175-3184. https://doi.org/10.1090/S0002-9939-96-03528-9

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