# Bulletin of National University of Uzbekistan: Mathematics and Natural Sciences

## Abstract

In the paper we investigate some cardinal and topological properties of the *n*-permutation degree of a topological spaces and locally *τ*-density of hyperspaces. It is proved that the functors exp_{n} and *SP ^{n}* preserves locally

*τ*-density of any infinite

*T*

_{1}-spaces.

## First Page

30

## Last Page

35

## References

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## Recommended Citation

Mukhamadiev, Farkhod
(2018)
"Some cardinal and topological properties of the *n*-permutation degree of a topological spaces and locally *τ*-density of hyperspaces,"
*Bulletin of National University of Uzbekistan: Mathematics and Natural Sciences*: Vol. 1:
Iss.
1, Article 11.

DOI: https://doi.org/10.56017/2181-1318.1010