Every countable group is the fundamental group of some compact subspace of R^4

Abstract

For every countable group G we construct a compact path connected subspace K of R^4 whose fundamental group is isomorphic to G. Our construction is much simpler than the one found recently by Virk.

arXiv comment4 pages; figure on page 1 corrected

References in corpus (1)

• Realizations of Countable Groups as Fundamental Groups of Compacta