Size homotopy groups for computation of natural size distances
Patrizio Frosini, Michele Mulazzani · Bulletin of the Belgian Mathematical Society - Simon Stevin · 1999
For every manifold M endowed with a structure described by a function from M to the vector space R k , a parametric family of groups, called size homotopy groups, is introduced and studied.Some lower bounds for natural size distances are obtained in this way.