대한수학회논문집 (Communications of the Korean Mathematical Society)
- 제11권1호
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- Pages.235-244
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- 1996
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- 1225-1763(pISSN)
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- 2234-3024(eISSN)
A sequence of homotopy subgroups of a CW-pair
초록
For a self-map f of a CW-pair (X, A), we introduce the G(f)-sequence of (X, A) which consists of subgroups of homotopy groups in the homotopy sequence of (X, A) and show some properties of the relative homotopy Jian groups. We also show a condition for the G(f)-sequence to be exact.