NewEvery arXiv paper, its researchers & institutions — mapped.
paper

Extensions of maps to the projective plane

arXiv:math/0410370 · doi:10.2140/agt.2005.5.1711

Abstract

It is proved that for a 3-dimensional compact metrizable space X the infinite real projective space is an absolute extensor of X if and only if the real projective plane is an absolute extensor of X.

Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol5/agt-5-69.abs.html