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I am a physics student, recently I read a paper using Homotopy $\pi_4(SU(2))=Z_2$, I guess mathematicians have some visualization or explanation of this result. So I come here ask for help.
# Homotopy $\Pi_4(SU(2))=Z_2$
I am a physics student, recently I read a paper using Homotopy $\Pi_4(SU(2))=Z_2$, I guess mathematicians have some visualization or explanation of this result. So I come here ask for help.