Degree under suspension
= Degree under suspension
If $f:S^m\to S^m$, then its suspension $\Sigma f:S^{m+1}\to S^{m+1}$ has the same degree. This follows from naturality of the suspension isomorphism in reduced homology.
= Degree under suspension
If $f:S^m\to S^m$, then its suspension $\Sigma f:S^{m+1}\to S^{m+1}$ has the same degree. This follows from naturality of the suspension isomorphism in reduced homology.