ar X iv : m at h / 02 05 30 0 v 2 [ m at h . G T ] 1 J un 2 00 2 FRAMED AND ORIENTED LINKS OF CODIMENSION 2

نویسنده

  • JIANHUA WANG
چکیده

Sanderson [12] gave an isomorphism θ : πm(∨ r i=1S 2 i ) −→ πm(∨ r+1 i=1 CP∞ i ). In this paper we construct for any subset σ ⊂ {1, 2, · · · , r} an isomorphism θσ from πm(∨ r i=1S 2 i ) to πm(∨ r+1 i=1 CP∞ i ). The inclusion S ∨ S →֒ CP∞ ∨ CP∞ induces a homomorphism f : πm(S 2 ∨ S) −→ πm(CP ∞ ∨ CP∞). We also compute f by evaluating f on each factor in the Hilton splitting of πm(S 2 ∨ S).

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تاریخ انتشار 2002