Let G be a compact connected simple Lie group. Any principal G–bundle over S4 is classified by an integer k ∈ ℤ≅π3(G), and we denote the corresponding gauge group by Gk(G). We prove that Gk(PU(3)) ≃Gℓ(PU(3)) if and only if (24,k) = (24,ℓ), and Gk(PSp(2)) ≃(p)Gℓ(PSp(2)) for any prime p if and only if (40,k) = (40,ℓ), where (m,n) is the gcd of integers m,n.
Keywords: gauge group, Samelson product
Hasui, Sho  1 ; Kishimoto, Daisuke  1 ; Kono, Akira  2 ; Sato, Takashi  1
@article{10_2140_agt_2016_16_1813,
author = {Hasui, Sho and Kishimoto, Daisuke and Kono, Akira and Sato, Takashi},
title = {The homotopy types of {PU(3){\textendash}} and {PSp(2){\textendash}gauge} groups},
journal = {Algebraic and Geometric Topology},
pages = {1813--1825},
year = {2016},
volume = {16},
number = {3},
doi = {10.2140/agt.2016.16.1813},
url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2016.16.1813/}
}
TY - JOUR AU - Hasui, Sho AU - Kishimoto, Daisuke AU - Kono, Akira AU - Sato, Takashi TI - The homotopy types of PU(3)– and PSp(2)–gauge groups JO - Algebraic and Geometric Topology PY - 2016 SP - 1813 EP - 1825 VL - 16 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2016.16.1813/ DO - 10.2140/agt.2016.16.1813 ID - 10_2140_agt_2016_16_1813 ER -
%0 Journal Article %A Hasui, Sho %A Kishimoto, Daisuke %A Kono, Akira %A Sato, Takashi %T The homotopy types of PU(3)– and PSp(2)–gauge groups %J Algebraic and Geometric Topology %D 2016 %P 1813-1825 %V 16 %N 3 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2016.16.1813/ %R 10.2140/agt.2016.16.1813 %F 10_2140_agt_2016_16_1813
Hasui, Sho; Kishimoto, Daisuke; Kono, Akira; Sato, Takashi. The homotopy types of PU(3)– and PSp(2)–gauge groups. Algebraic and Geometric Topology, Tome 16 (2016) no. 3, pp. 1813-1825. doi: 10.2140/agt.2016.16.1813
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