Tightness-Type Properties of the Space of Permutation Degree
Ljubiša D. R. KočinacFaculty of Sciences and Mathematics, University of Niš, 18000 Niš, SerbiaF. G. MukhamadievFaculty of Mathematics, National University of Uzbekistan, Tashkent 100174, UzbekistanAnvar K. SadullaevDepartment of Exact Sciences, Yeoju Technical Institute in Tashkent, Tashkent 100121, Uzbekistan
ABI
Annotatsiya
In this paper we, prove that if the product Xn of a space X has certain tightness-type properties, then the space of permutation degree SPnX has these properties as well. It is proven that the set tightness (T-tightness) of the space of permutation degree SPnX is equal to the set tightness (T-tightness) of the product Xn.
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