English

On topological fundamental groups of quotient spaces

Algebraic Topology 2015-11-26 v2 General Topology

Abstract

Let p:XX/Ap:X\rightarrow X/A be a quotient map, where AA is a subspace of XX. We explore conditions under which p(π1qtop(X,x0))p_*(\pi_1^{qtop}(X,x_0)) is dense in π1qtop(X/A,))\pi_1^{qtop}(X/A,*)), where the fundamental groups enjoy the natural quotient topology inherited from the loop space and pp_* is the induced continuous homomorphism by the quotient map pp. Also, we give some applications to find out some properties for π1qtop(X/A,)\pi_1^{qtop}(X/A,*). In particular, we give some conditions in which π1qtop(X/A,)\pi_1^{qtop}(X/A,*) is an indiscrete topological group.

Keywords

Cite

@article{arxiv.1105.4009,
  title  = {On topological fundamental groups of quotient spaces},
  author = {Hamid Torabi and Ali Pakdaman and Behrooz Mashayekhy},
  journal= {arXiv preprint arXiv:1105.4009},
  year   = {2015}
}

Comments

13 pages, 1 figure, to appear in Ukrainian Mathematical Journal