Research output: Contribution to journal › Article › peer-review
Mappings of the sphere to a simply connected space. / Podkorytov, S. S.
In: Journal of Mathematical Sciences , Vol. 140, No. 4, 01.01.2007, p. 589-610.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Mappings of the sphere to a simply connected space
AU - Podkorytov, S. S.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Fix an m ε N, m ≥ 2. Let Y be a simply connected pointed CW-complex, and let B be a finite set of continuous mappings a: Sm → Y respecting the distinguished points. Let Γ(a) ⊂ Sm × Y be the graph of a, and we denote by [a] πm(Y) the homotopy class of a. Then for some r ε N depending on m only, there exist a finite set E ⊂ Sm × Y and a mapping k: E(r) = {F ⊂ E: |F| ≤ r} → πm(Y) such that for each a ε B we have [a] = ∑FεE(r):F⊂Γ(a). Bibliography: 5 titles.
AB - Fix an m ε N, m ≥ 2. Let Y be a simply connected pointed CW-complex, and let B be a finite set of continuous mappings a: Sm → Y respecting the distinguished points. Let Γ(a) ⊂ Sm × Y be the graph of a, and we denote by [a] πm(Y) the homotopy class of a. Then for some r ε N depending on m only, there exist a finite set E ⊂ Sm × Y and a mapping k: E(r) = {F ⊂ E: |F| ≤ r} → πm(Y) such that for each a ε B we have [a] = ∑FεE(r):F⊂Γ(a). Bibliography: 5 titles.
UR - http://www.scopus.com/inward/record.url?scp=33845799840&partnerID=8YFLogxK
U2 - 10.1007/s10958-007-0441-6
DO - 10.1007/s10958-007-0441-6
M3 - Article
AN - SCOPUS:33845799840
VL - 140
SP - 589
EP - 610
JO - Journal of Mathematical Sciences
JF - Journal of Mathematical Sciences
SN - 1072-3374
IS - 4
ER -
ID: 49886514