in the book of bennet chow,the definition of the "*" notation is simple ,I can't understand . can someone gives me some examples of this definition? or tell me in which book I can find this?thanks.
2026-03-26 04:31:53.1774499513
evolution of curvature under ricci flow , What does the tensor A*B means?
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The notation $A*B$ is used for tensors $A$, $B$ to denote a linear combination of contractions of the tensors $A$ and $B$.