Coarse Whitehead conjecture for spaces with finitely many ends
Coarse Whitehead conjecture for spaces with finitely many ends
Let and be compact metric spaces with finite shape dimension, let be a coarse map, and suppose that has ends. Choose whose images under represent these ends. Assume that, for every and every , the induced map is an isomorphism. Finite-ended coarse Whitehead conjecture. There is an such that induces an isomorphism
for all and all chosen . If additionally induces an isomorphism on the ends of and , then is a coarse homotopy equivalence. This is proposed as an extension of coarse Whitehead from connected spaces to spaces whose model has finitely many ends.
Sources & referencesView supporting material
Primary source
Felix Lange, “Coarse Homotopy Theory and Shape Theory”, arXiv:2606.14212 (2026).
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