Forgetable map and phantom maps

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dc.creatorJianzhong, Pan
dc.creatorHa, Woo Moo
dc.date1999-07-20
dc.date.accessioned2026-07-07T05:29:58Z
dc.date.available2026-07-07T05:29:58Z
dc.descriptionIn this note, we attack a question posed ten years ago by Tsukiyama about the injectivity of the so- called Forgetable map. We show that we can insert the Forgetable map in an exact sequence and that the problem can be reduced to the computation of the sequence which turns out unexpectedly to be related to the phantom map problem and the famous Halperin conjecture in rational homotopy theory.
dc.description21 pages, Latex2e file and pb-diagram package
dc.identifierhttps://arxiv.org/abs/math/9907122
dc.identifierhttp://arxiv.org/abs/math/9907122
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/78847
dc.subjectAlgebraic Topology
dc.subject55P10,55P60,55P62,55R10
dc.titleForgetable map and phantom maps
dc.typetext

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