A homotopy problem about whitehead product on $\pi_n(S^2\vee S^2)$ - MathOverflow most recent 30 from http://mathoverflow.net 2013-06-19T20:25:27Z http://mathoverflow.net/feeds/question/92739 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/92739/a-homotopy-problem-about-whitehead-product-on-pi-ns2-vee-s2 A homotopy problem about whitehead product on $\pi_n(S^2\vee S^2)$ jinch 2012-03-31T08:21:44Z 2012-03-31T08:21:44Z <p>Let $\eta_2$ be the generator of $\pi_3(S^2)$, i.e. the Hopf map. $i_1:S^2 \hookrightarrow S^2\vee S^2$ and $i_2:S^2 \hookrightarrow S^2\vee S^2$ are the inclution maps respectively. then $[i_1\circ \eta_2,i_2]=?$ where $[,]$ is the whitehead product.</p>