2 citations · 4 across the 4 of their papers we have counts for
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M. Brozos-Vazquez, P. Gilkey
An algebraic curvature tensor A is said to be Jacobi-Tsankov if J(x)J(y)=J(y)J(x) for all x,y. This implies J(x)J(x)=0 for all x; necessarily A=0 in the Riemannian setting. Further…