Tightness-Type Properties of the Space of Permutation Degree

Ljubiša D. R. Kočinac (), Farkhod G. Mukhamadiev and Anvar K. Sadullaev
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Ljubiša D. R. Kočinac: Faculty of Sciences and Mathematics, University of Niš, 18000 Niš, Serbia
Farkhod G. Mukhamadiev: Faculty of Mathematics, National University of Uzbekistan, Tashkent 100174, Uzbekistan
Anvar K. Sadullaev: Department of Exact Sciences, Yeoju Technical Institute in Tashkent, Tashkent 100121, Uzbekistan

Mathematics, 2022, vol. 10, issue 18, 1-7

Abstract: In this paper we, prove that if the product X n of a space X has certain tightness-type properties, then the space of permutation degree SP n X has these properties as well. It is proven that the set tightness ( T -tightness) of the space of permutation degree SP n X is equal to the set tightness ( T -tightness) of the product X n .

Keywords: functor of permutation degree; tightness; set tightness; T -tightness; functional tightness; mini-tightness (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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